Jet fuel

Last updated
Jet fuel
Aircraft being fueled by tanker.jpg
Identifiers
ChemSpider
  • None
UNII
Properties
AppearanceStraw-colored liquid
Density 775-840 g/L
Melting point −47 °C (−53 °F; 226 K)
Boiling point 176 °C (349 °F; 449 K)
Hazards
NFPA 704 (fire diamond)
NFPA 704.svgHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuelInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
2
0
Flash point 38 °C (100 °F; 311 K)
210 °C (410 °F; 483 K)
Safety data sheet (SDS)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Yes check.svgY  verify  (what is  Yes check.svgYX mark.svgN ?)

Jet fuel or aviation turbine fuel (ATF, also abbreviated avtur) is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is colorless to straw-colored in appearance. The most commonly used fuels for commercial aviation are Jet A and Jet A-1, which are produced to a standardized international specification. The only other jet fuel commonly used in civilian turbine-engine powered aviation is Jet B, which is used for its enhanced cold-weather performance.

Contents

Jet fuel is a mixture of a variety of hydrocarbons. Because the exact composition of jet fuel varies widely based on petroleum source, it is impossible to define jet fuel as a ratio of specific hydrocarbons. Jet fuel is therefore defined as a performance specification rather than a chemical compound. [1] Furthermore, the range of molecular mass between hydrocarbons (or different carbon numbers) is defined by the requirements for the product, such as the freezing point or smoke point. Kerosene-type jet fuel (including Jet A and Jet A-1, JP-5, and JP-8) has a carbon number distribution between about 8 and 16 (carbon atoms per molecule); wide-cut or naphtha-type jet fuel (including Jet B and JP-4), between about 5 and 15. [2] [3]

History

Fuel for piston-engine powered aircraft (usually a high-octane gasoline known as avgas) has a high volatility to improve its carburetion characteristics and high autoignition temperature to prevent preignition in high compression aircraft engines. Turbine engines (as with diesel engines) can operate with a wide range of fuels because fuel is injected into the hot combustion chamber. Jet and gas turbine (turboprop, helicopter) aircraft engines typically use lower cost fuels with higher flash points, which are less flammable and therefore safer to transport and handle.

The first axial compressor jet engine in widespread production and combat service, the Junkers Jumo 004 used on the Messerschmitt Me 262A fighter and the Arado Ar 234B jet recon-bomber, burned either a special synthetic "J2" fuel or diesel fuel. Gasoline was a third option but unattractive due to high fuel consumption. [4] Other fuels used were kerosene or kerosene and gasoline mixtures.

Standards

Most jet fuels in use since the end of World War II are kerosene-based. Both British and American standards for jet fuels were first established at the end of World War II. British standards derived from standards for kerosene use for lamps—known as paraffin in the UK—whereas American standards derived from aviation gasoline practices. Over the subsequent years, details of specifications were adjusted, such as minimum freezing point, to balance performance requirements and availability of fuels. Very low temperature freezing points reduce the availability of fuel. Higher flash point products required for use on aircraft carriers are more expensive to produce. [3] In the United States, ASTM International produces standards for civilian fuel types, and the U.S. Department of Defense produces standards for military use. The British Ministry of Defence establishes standards for both civil and military jet fuels. [3] For reasons of inter-operational ability, British and United States military standards are harmonized to a degree. In Russia and the CIS members, grades of jet fuels are covered by the State Standard (GOST) number, or a Technical Condition number, with the principal grade available being TS-1.

Types

Jet A/A-1

Shell Jet A-1 refueller truck on the ramp at Vancouver International Airport. Note the signs indicating UN1863 hazardous material and JET A-1. Shell Refueller.JPG
Shell Jet A-1 refueller truck on the ramp at Vancouver International Airport. Note the signs indicating UN1863 hazardous material and JET A-1.
A US Airways Boeing 757 being fueled at Fort Lauderdale-Hollywood International Airport Aircraft being fueled.jpg
A US Airways Boeing 757 being fueled at Fort Lauderdale–Hollywood International Airport
An Iberia Airbus A340 being fueled at La Aurora International Airport IBE-refueling-gua.jpg
An Iberia Airbus A340 being fueled at La Aurora International Airport

Jet A specification fuel has been used in the United States since the 1950s and is usually not available outside the United States [5] and a few Canadian airports such as Toronto, Montreal, and Vancouver, [6] whereas Jet A-1 is the standard specification fuel used in most of the rest of the world, [lower-alpha 1] the main exceptions being Russia and the CIS members, where TS-1 fuel type is the most common standard. Both Jet A and Jet A-1 have a flash point higher than 38 °C (100 °F), with an autoignition temperature of 210 °C (410 °F). [9]

Differences between Jet A and Jet A-1

The differences between Jet A and Jet A-1 are twofold. The primary difference is the lower freezing point of Jet A-1 fuel: [5]

The other difference is the mandatory addition of an antistatic additive to Jet A-1 fuel.

Jet A and Jet A-1 fuel trucks and storage tanks, as well as plumbing that carries them, are all marked "Jet A" or "Jet A-1" in white italicized text within a black rectangle background, adjacent to one or two diagonal black stripes.[ citation needed ]

Typical physical properties for Jet A and Jet A-1

Jet A-1 fuel must meet:

Jet A fuel must reach ASTM specification D1655 (Jet A). [10]

Typical physical properties for Jet A / Jet A-1 [11]
Jet A-1Jet A
Flash point 38 °C (100 °F)
Autoignition temperature 210 °C (410 °F) [9]
Freezing point −47 °C (−53 °F)−40 °C (−40 °F)
Max adiabatic burn temperature2,230 °C (4,050 °F)
open air burn temperature: 1,030 °C (1,890 °F) [12] [13] [14]
Density at 15 °C (59 °F)0.804 kg/L (6.71 lb/US gal)0.820 kg/L (6.84 lb/US gal)
Specific energy 43.15 MJ/kg (11.99 kWh/kg)43.02 MJ/kg (11.95 kWh/kg)
Energy density 34.7 MJ/L (9.6 kWh/L) [15] 35.3 MJ/L (9.8 kWh/L)

Jet B

Jet B is a naphtha-kerosene fuel that is used for its enhanced cold-weather performance. However, Jet B's lighter composition makes it more dangerous to handle. [10] For this reason, it is rarely used, except in very cold climates. A blend of approximately 30% kerosene and 70% gasoline, it is known as wide-cut fuel. It has a very low freezing point of −60 °C (−76 °F), and a low flash point as well. It is primarily used in northern Canada and Alaska, where the extreme cold makes its low freezing point necessary, and which helps mitigate the danger of its lower flash point.

TS-1

TS-1 is a jet fuel made to Russian standard GOST 10227 for enhanced cold-weather performance. It has somewhat higher volatility than Jet A-1 (flash point is 28 °C (82 °F) minimum). It has a very low freezing point, below −50 °C (−58 °F). [16]

Additives

The DEF STAN 91-091 (UK) and ASTM D1655 (international) specifications allow for certain additives to be added to jet fuel, including: [17] [18]

As the aviation industry's jet kerosene demands have increased to more than 5% of all refined products derived from crude, it has been necessary for the refiner to optimize the yield of jet kerosene, a high-value product, by varying process techniques.

New processes have allowed flexibility in the choice of crudes, the use of coal tar sands as a source of molecules and the manufacture of synthetic blend stocks. Due to the number and severity of the processes used, it is often necessary and sometimes mandatory to use additives. These additives may, for example, prevent the formation of harmful chemical species or improve a property of a fuel to prevent further engine wear.

Water in jet fuel

It is very important that jet fuel be free from water contamination. During flight, the temperature of the fuel in the tanks decreases, due to the low temperatures in the upper atmosphere. This causes precipitation of the dissolved water from the fuel. The separated water then drops to the bottom of the tank, because it is denser than the fuel. Since the water is no longer in solution, it can form droplets which can supercool to below 0 °C (32 °F). If these supercooled droplets collide with a surface they can freeze and may result in blocked fuel inlet pipes. [21] This was the cause of the British Airways Flight 38 accident. Removing all water from fuel is impractical; therefore, fuel heaters are usually used on commercial aircraft to prevent water in fuel from freezing.

There are several methods for detecting water in jet fuel. A visual check may detect high concentrations of suspended water, as this will cause the fuel to become hazy in appearance. An industry standard chemical test for the detection of free water in jet fuel uses a water-sensitive filter pad that turns green if the fuel exceeds the specification limit of 30 ppm (parts per million) free water. [22] A critical test to rate the ability of jet fuel to release emulsified water when passed through coalescing filters is ASTM standard D3948 Standard Test Method for Determining Water Separation Characteristics of Aviation Turbine Fuels by Portable Separometer.

Military jet fuels

A sailor inspects a sample of JP-5 jet fuel aboard an amphibious transport dock ship US Navy 101117-N-9706M-326 Machinist's Mate 3rd Class Robert Loughbom inspects a sample of JP-5 jet fuel aboard the amphibious transport dock ship.jpg
A sailor inspects a sample of JP-5 jet fuel aboard an amphibious transport dock ship

Military organizations around the world use a different classification system of JP (for "Jet Propellant") numbers. Some are almost identical to their civilian counterparts and differ only by the amounts of a few additives; Jet A-1 is similar to JP-8, Jet B is similar to JP-4. [23] Other military fuels are highly specialized products and are developed for very specific applications.

JP-1
was an early jet fuel [24] specified in 1944 by the United States government (AN-F-32). It was a pure kerosene fuel with high flash point (relative to aviation gasoline) and a freezing point of −60 °C (−76 °F). The low freezing point requirement limited availability of the fuel and it was soon superseded by other "wide cut" jet fuels which were kerosene-naphtha or kerosene-gasoline blends. It was also known as avtur.

JP-2
an obsolete type developed during World War II. JP-2 was intended to be easier to produce than JP-1 since it had a higher freezing point, but was never widely used. [25]

JP-3
was an attempt to improve availability of the fuel compared to JP-1 by widening the cut and loosening tolerances on impurities to ensure ready supply. In his book Ignition! An Informal History of Liquid Rocket Propellants, John D. Clark described the specification as, "remarkably liberal, with a wide cut (range of distillation temperatures) and with such permissive limits on olefins and aromatics that any refinery above the level of a Kentucky moonshine r's pot still could convert at least half of any crude to jet fuel". [26] It was even more volatile than JP-2 and had high evaporation loss in service. [25]

JP-4
was a 50-50 kerosene-gasoline blend. It had lower flash point than JP-1, but was preferred because of its greater availability. It was the primary United States Air Force jet fuel between 1951 and 1995. Its NATO code is F-40. It is also known as avtag.

JP-5
is a yellow kerosene-based jet fuel developed in 1952 for use in aircraft stationed aboard aircraft carriers, where the risk from fire is particularly great. JP-5 is a complex mixture of hydrocarbons, containing alkanes, naphthenes, and aromatic hydrocarbons that weighs 6.8 pounds per U.S. gallon (0.81 kg/L) and has a high flash point (min. 60 °C or 140 °F). [27] Because some US naval air stations, Marine Corps air stations and Coast Guard air stations host both sea and land based naval aircraft, these installations will also typically fuel their shore-based aircraft with JP-5, thus precluding the need to maintain separate fuel facilities for JP-5 and non-JP-5 fuel. Chinese also named their navy fuel RP-5. [28] Its freezing point is −46 °C (−51 °F). It does not contain antistatic agents. JP-5 is also known as NCI-C54784. JP-5's NATO code is F-44. It is also called AVCAT fuel for Aviation Carrier Turbine fuel. [29]
The JP-4 and JP-5 fuels, covered by the MIL-DTL-5624 and meeting the British Specification DEF STAN 91-86 AVCAT/FSII (formerly DERD 2452), [30] are intended for use in aircraft turbine engines. These fuels require unique additives that are necessary for military aircraft and engine fuel systems.

JP-6
was developed for the General Electric YJ93 afterburning turbojet engines used in the North American XB-70 Valkyrie for sustained flight at Mach 3. It was similar to JP-5 but with a lower freezing point and improved thermal oxidative stability. When the XB-70 program was cancelled, the JP-6 specification, MIL-J-25656, was also cancelled. [31]

JP-7
was developed for the Pratt & Whitney J58 afterburning turbojet engines used in the Lockheed SR-71 Blackbird for sustained flight at Mach 3+. It had a high flash point required to prevent boiloff caused by aerodynamic heating. Its thermal stability was high enough to prevent coke and varnish deposits when used as a heat-sink for aircraft air conditioning and hydraulic systems and engine accessories. [32]

JP-8
is a jet fuel, specified and used widely by the U.S. military. It is specified by MIL-DTL-83133 and British Defence Standard 91-87. JP-8 is a kerosene-based fuel, projected to remain in use at least until 2025. The United States military uses JP-8 as a "universal fuel" in both turbine-powered aircraft and diesel-powered ground vehicles. It was first introduced at NATO bases in 1978. Its NATO code is F-34.

JP-9
is a gas turbine fuel for missiles, specifically the Tomahawk cruise missile, containing the TH-dimer (tetrahydrodimethyldicyclopentadiene) produced by catalytic hydrogenation of methylpentadiene dimer.

JP-10
is a gas turbine fuel for missiles, specifically the AGM-86 ALCM cruise missile. [33] It contains a mixture of (in decreasing order) endo-tetrahydrodicyclopentadiene, exo-tetrahydrodicyclopentadiene (a synthetic fuel), and adamantane. It is produced by catalytic hydrogenation of dicyclopentadiene. It superseded JP-9 fuel, achieving a lower low-temperature service limit of −65 °F (−54 °C). [33] It is also used by the Tomahawk jet-powered subsonic cruise missile. [34]

JPTS
was a combination of LF-1 charcoal lighter fluid and an additive to improve thermal oxidative stability officially known as "Thermally Stable Jet Fuel". It was developed in 1956 for the Pratt & Whitney J57 engine which powered the Lockheed U-2 spy plane. [35]

Zip fuel
designates a series of experimental boron-containing "high energy fuels" intended for long range aircraft. The toxicity and undesirable residues of the fuel made it difficult to use. The development of the ballistic missile removed the principal application of zip fuel.

Syntroleum
has been working with the USAF to develop a synthetic jet fuel blend that will help them reduce their dependence on imported petroleum. The USAF, which is the United States military's largest user of fuel, began exploring alternative fuel sources in 1999. On December 15, 2006, a B-52 took off from Edwards Air Force Base for the first time powered solely by a 50–50 blend of JP-8 and Syntroleum's FT fuel. The seven-hour flight test was considered a success. The goal of the flight test program was to qualify the fuel blend for fleet use on the service's B-52s, and then flight test and qualification on other aircraft.

Piston engine use

Jet fuel is very similar to diesel fuel, and in some cases, may be used in diesel engines. The possibility of environmental legislation banning the use of leaded avgas (fuel in spark-ignited internal combustion engine, which usually contains tetraethyllead (TEL), a toxic substance added to prevent engine knocking), and the lack of a replacement fuel with similar performance, has left aircraft designers and pilot's organizations searching for alternative engines for use in small aircraft. [36] As a result, a few aircraft engine manufacturers, most notably Thielert and Austro Engine, have begun offering aircraft diesel engines which run on jet fuel which may simplify airport logistics by reducing the number of fuel types required. Jet fuel is available in most places in the world, whereas avgas is only widely available in a few countries which have a large number of general aviation aircraft. A diesel engine may be more fuel-efficient than an avgas engine. However, very few diesel aircraft engines have been certified by aviation authorities. Diesel aircraft engines are uncommon today, even though opposed-piston aviation diesel powerplants such as the Junkers Jumo 205 family had been used during the Second World War.

Jet fuel is often used in diesel-powered ground-support vehicles at airports. However, jet fuel tends to have poor lubricating ability in comparison to diesel, which increases wear in fuel injection equipment.[ citation needed ] An additive may be required to restore its lubricity. Jet fuel is more expensive than diesel fuel but the logistical advantages of using one fuel can offset the extra expense of its use in certain circumstances.

Jet fuel contains more sulfur, up to 1,000 ppm, which therefore means it has better lubricity and does not currently require a lubricity additive as all pipeline diesel fuels require.[ citation needed ] The introduction of Ultra Low Sulfur Diesel or ULSD brought with it the need for lubricity modifiers. Pipeline diesels before ULSD were able to contain up to 500 ppm of sulfur and were called Low Sulfur Diesel or LSD. In the United States LSD is now only available to the off-road construction, locomotive and marine markets. As more EPA regulations are introduced, more refineries are hydrotreating their jet fuel production, thus limiting the lubricating abilities of jet fuel, as determined by ASTM Standard D445.

JP-8, which is similar to Jet A-1, is used in NATO diesel vehicles as part of the single-fuel policy. [37]

Synthetic jet fuel

Fischer–Tropsch (FT) Synthesized Paraffinic Kerosene (SPK) synthetic fuels are certified for use in United States and international aviation fleets at up to 50% in a blend with conventional jet fuel. [38] As of the end of 2017, four other pathways to SPK are certified, with their designations and maximum blend percentage in brackets: Hydroprocessed Esters and Fatty Acids (HEFA SPK, 50%); synthesized iso-paraffins from hydroprocessed fermented sugars (SIP, 10%); synthesized paraffinic kerosene plus aromatics (SPK/A, 50%); alcohol-to-jet SPK (ATJ-SPK, 30%). Both FT and HEFA based SPKs blended with JP-8 are specified in MIL-DTL-83133H.

Some synthetic jet fuels show a reduction in pollutants such as SOx, NOx, particulate matter, and sometimes carbon emissions. [39] [40] [41] [42] [43] It is envisaged that usage of synthetic jet fuels will increase air quality around airports which will be particularly advantageous at inner city airports. [44]

Qatar Airways became the first airline to operate a commercial flight on a 50:50 blend of synthetic Gas to Liquid (GTL) jet fuel and conventional jet fuel. The natural gas derived synthetic kerosene for the six-hour flight from London to Doha came from Shell's GTL plant in Bintulu, Malaysia. [45] The world's first passenger aircraft flight to use only synthetic jet fuel was from Lanseria International Airport to Cape Town International Airport on September 22, 2010. The fuel was developed by Sasol. [46]

Chemist Heather Willauer is leading a team of researchers at the U.S. Naval Research Laboratory who are developing a process to make jet fuel from seawater. The technology requires an input of electrical energy to separate Oxygen (O2) and Hydrogen (H2) gas from seawater using an iron-based catalyst, followed by an oligomerization step wherein carbon monoxide (CO) and hydrogen are recombined into long-chain hydrocarbons, using zeolite as the catalyst. The technology is expected to be deployed in the 2020s by U.S. Navy warships, especially nuclear-powered aircraft carriers. [47] [48] [49] [50] [51] [52]

On February 8, 2021, the world's first scheduled passenger flight flew with some synthetic kerosene from a non-fossil fuel source. 500 liters of synthetic kerosene was mixed with regular jet fuel. Synthetic kerosene was produced by Shell and the flight was operated by KLM. [53]

USAF synthetic fuel trials

On August 8, 2007, Air Force Secretary Michael Wynne certified the B-52H as fully approved to use the FT blend, marking the formal conclusion of the test program. This program is part of the Department of Defense Assured Fuel Initiative, an effort to develop secure domestic sources for the military energy needs. The Pentagon hopes to reduce its use of crude oil from foreign producers and obtain about half of its aviation fuel from alternative sources by 2016. With the B-52 now approved to use the FT blend, the USAF will use the test protocols developed during the program to certify the Boeing C-17 Globemaster III and then the Rockwell B-1B Lancer to use the fuel. To test these two aircraft, the USAF has ordered 281,000 US gal (1,060,000 L) of FT fuel. The USAF intends to test and certify every airframe in its inventory to use the fuel by 2011. They will also supply over 9,000 US gal (34,000 L; 7,500 imp gal) to NASA for testing in various aircraft and engines.[ needs update ]

The USAF has certified the B-1B, B-52H, C-17, Lockheed Martin C-130J Super Hercules, McDonnell Douglas F-4 Phantom (as QF-4 target drones), McDonnell Douglas F-15 Eagle, Lockheed Martin F-22 Raptor, and Northrop T-38 Talon to use the synthetic fuel blend. [54]

The U.S. Air Force's C-17 Globemaster III, F-16 and F-15 are certified for use of hydrotreated renewable jet fuels. [55] [56] The USAF plans to certify over 40 models for fuels derived from waste oils and plants by 2013. [56] The U.S. Army is considered one of the few customers of biofuels large enough to potentially bring biofuels up to the volume production needed to reduce costs. [56] The U.S. Navy has also flown a Boeing F/A-18E/F Super Hornet dubbed the "Green Hornet" at 1.7 times the speed of sound using a biofuel blend. [56] The Defense Advanced Research Projects Agency (DARPA) funded a $6.7 million project with Honeywell UOP to develop technologies to create jet fuels from biofeedstocks for use by the United States and NATO militaries. [57]

In April 2011, four USAF F-15E Strike Eagles flew over the Philadelphia Phillies opening ceremony using a blend of traditional jet fuel and synthetic biofuels. This flyover made history as it was the first flyover to use biofuels in the Department of Defense. [58]

Jet biofuels

The air transport industry is responsible for 2–3 percent of man-made carbon dioxide emitted. [59] Boeing estimates that biofuels could reduce flight-related greenhouse-gas emissions by 60 to 80 percent. One possible solution which has received more media coverage than others would be blending synthetic fuel derived from algae with existing jet fuel: [60]

Solazyme produced the world's first 100 percent algae-derived jet fuel, Solajet, for both commercial and military applications. [68]

Jet fuel vs oil prices Jet fuel vs oil prices.webp
Jet fuel vs oil prices

Oil prices increased about fivefold from 2003 to 2008, raising fears that world petroleum production is becoming unable to keep up with demand. The fact that there are few alternatives to petroleum for aviation fuel adds urgency to the search for alternatives. Twenty-five airlines were bankrupted or stopped operations in the first six months of 2008, largely due to fuel costs. [69]

In 2015 ASTM approved a modification to Specification D1655 Standard Specification for Aviation Turbine Fuels to permit up to 50 ppm (50 mg/kg) of FAME (fatty acid methyl ester) in jet fuel to allow higher cross-contamination from biofuel production. [70]

Worldwide consumption of jet fuel

Worldwide demand of jet fuel has been steadily increasing since 1980. Consumption more than tripled in 30 years from 1,837,000 barrels/day in 1980, to 5,220,000 in 2010. [71] Around 30% of the worldwide consumption of jet fuel is in the US (1,398,130 barrels/day in 2012).

Taxation

Article 24 of the Chicago Convention on International Civil Aviation of 7 December 1944 stipulates that when flying from one contracting state to another, the kerosene that is already on board aircraft may not be taxed by the state where the aircraft lands, nor by a state through whose airspace the aircraft has flown. This is to prevent double taxation. It is sometimes suggested that the Chicago Convention precludes the taxation of aviation fuel. However, this is not correct. The Chicago Convention does not preclude a kerosene tax on domestic flights or on refuelling before international flights. [72] : 22 

Article 15 of the Chicago Convention is also sometimes said to ban fuel taxes. Article 15 states: "No fees, dues or other charges shall be imposed by any contracting State in respect solely of the right of transit over or entry into or exit from its territory of any aircraft of a contracting State or persons or property thereon." However, ICAO distinguishes between charges and taxes, and Article 15 does not prohibit the levying of taxes without a service provided. [72] : 23 

In the European Union, commercial aviation fuel is exempt from taxation, according to the 2003 Energy Taxation Directive. [73] EU member states may tax jet fuel via bilateral agreements, however no such agreements exist. [72]

In the United States, most states tax jet fuel.

Health effects

General health hazards associated with exposure to jet fuel vary according to its components, exposure duration (acute vs. long-term), route of administration (dermal vs. respiratory vs. oral), and exposure phase (vapor vs. aerosol vs. raw fuel). [74] [75] Kerosene-based hydrocarbon fuels are complex mixtures which may contain up to 260+ aliphatic and aromatic hydrocarbon compounds including toxicants such as benzene, n-hexane, toluene, xylenes, trimethylpentane, methoxyethanol, naphthalenes. [75] While time-weighted average hydrocarbon fuel exposures can often be below recommended exposure limits, peak exposure can occur, and the health impact of occupational exposures is not fully understood. Evidence of the health effects of jet fuels comes from reports on both temporary or persisting biological from acute, subchronic, or chronic exposure of humans or animals to kerosene-based hydrocarbon fuels, or the constituent chemicals of these fuels, or to fuel combustion products. The effects studied include: cancer, skin conditions, respiratory disorders, [76] immune and hematological disorders, [77] neurological effects, [78] visual and hearing disorders, [79] [80] renal and hepatic diseases, cardiovascular conditions, gastrointestinal disorders, genotoxic and metabolic effects. [75] [81]

See also

Notes

  1. ↑ The Chinese RP-3 jet fuel standard is very similar to Jet A-1 fuel. [7] [8]

Related Research Articles

Kerosene, or paraffin, is a combustible hydrocarbon liquid which is derived from petroleum. It is widely used as a fuel in aviation as well as households. Its name derives from κηρός (kērós) meaning "wax", and was registered as a trademark by Nova Scotia geologist and inventor Abraham Gesner in 1854 before evolving into a generic trademark. It is sometimes spelled kerosine in scientific and industrial usage.

<span class="mw-page-title-main">Gasoline</span> Liquid fuel derived from petroleum

Gasoline or petrol is a petrochemical product characterized as a transparent, yellowish, and flammable liquid normally used as a fuel for spark-ignited internal combustion engines. When formulated as a fuel for engines, gasoline is chemically composed of organic compounds derived from the fractional distillation of petroleum and later chemically enhanced with gasoline additives. It is a high-volume profitable product produced in crude oil refineries.

<span class="mw-page-title-main">Diesel fuel</span> Liquid fuel used in diesel engines

Diesel fuel, also called diesel oil, heavy oil (historically) or simply diesel, is any liquid fuel specifically designed for use in a diesel engine, a type of internal combustion engine in which fuel ignition takes place without a spark as a result of compression of the inlet air and then injection of fuel. Therefore, diesel fuel needs good compression ignition characteristics.

<span class="mw-page-title-main">Aircraft engine</span> Engine designed for use in powered aircraft

An aircraft engine, often referred to as an aero engine, is the power component of an aircraft propulsion system. Aircraft using power components are referred to as powered flight. Most aircraft engines are either piston engines or gas turbines, although a few have been rocket powered and in recent years many small UAVs have used electric motors.

<span class="mw-page-title-main">Biofuel</span> Type of biological fuel

Biofuel is a fuel that is produced over a short time span from biomass, rather than by the very slow natural processes involved in the formation of fossil fuels such as oil. Biofuel can be produced from plants or from agricultural, domestic or industrial biowaste. Biofuels are mostly used for transportation, but can also be used for heating and electricity. Biofuels are regarded as a renewable energy source. The use of biofuel has been subject to criticism regarding the "food vs fuel" debate, varied assessments of their sustainability, and ongoing deforestation and biodiversity loss as a result of biofuel production.

<span class="mw-page-title-main">Biodiesel</span> Fuel made from vegetable oils or animal fats

Biodiesel is a renewable biofuel, a form of diesel fuel, derived from biological sources like vegetable oils, animal fats, or recycled greases, and consisting of long-chain fatty acid esters. It is typically made from fats.

<span class="mw-page-title-main">Avgas</span> Aviation fuel

Avgas is an aviation fuel used in aircraft with spark-ignited internal combustion engines. Avgas is distinguished from conventional gasoline (petrol) used in motor vehicles, which is termed mogas in an aviation context. Unlike motor gasoline, which has been formulated without lead since the 1970s to allow the use of catalytic converters for pollution reduction, the most commonly used grades of avgas still contain tetraethyl lead, a toxic lead containing additive used to aid in lubrication of the engine, increase octane rating, and prevent engine knocking. There are ongoing efforts to reduce or eliminate the use of lead in aviation gasoline.

<span class="mw-page-title-main">Hydraulic fluid</span> Medium to transfer power in hydraulic machinery

A hydraulic fluid or hydraulic liquid is the medium by which power is transferred in hydraulic machinery. Common hydraulic fluids are based on mineral oil or water. Examples of equipment that might use hydraulic fluids are excavators and backhoes, hydraulic brakes, power steering systems, automatic transmissions, garbage trucks, aircraft flight control systems, lifts, and industrial machinery.

<span class="mw-page-title-main">RP-1</span> Highly refined form of kerosene used as rocket fuel

RP-1 (alternatively, Rocket Propellant-1 or Refined Petroleum-1) is a highly refined form of kerosene outwardly similar to jet fuel, used as rocket fuel. RP-1 provides a lower specific impulse than liquid hydrogen (H2), but is cheaper, is stable at room temperature, and presents a lower explosion hazard. RP-1 is far denser than H2, giving it a higher energy density (though its specific energy is lower). RP-1 also has a fraction of the toxicity and carcinogenic hazards of hydrazine, another room-temperature liquid fuel.

<span class="mw-page-title-main">Aviation fuel</span> Fuel used to power aircraft

Aviation fuels are petroleum-based fuels, or petroleum and synthetic fuel blends, used to power aircraft. They have more stringent requirements than fuels used for ground use, such as heating and road transport, and contain additives to enhance or maintain properties important to fuel performance or handling. They are kerosene-based for gas turbine-powered aircraft. Piston-engined aircraft use leaded gasoline and those with diesel engines may use jet fuel (kerosene). By 2012, all aircraft operated by the U.S. Air Force had been certified to use a 50-50 blend of kerosene and synthetic fuel derived from coal or natural gas as a way of stabilizing the cost of fuel.

<span class="mw-page-title-main">Liquid fuel</span> Liquids that can be used to create energy

Liquid fuels are combustible or energy-generating molecules that can be harnessed to create mechanical energy, usually producing kinetic energy; they also must take the shape of their container. It is the fumes of liquid fuels that are flammable instead of the fluid. Most liquid fuels in widespread use are derived from fossil fuels; however, there are several types, such as hydrogen fuel, ethanol, and biodiesel, which are also categorized as a liquid fuel. Many liquid fuels play a primary role in transportation and the economy.

<span class="mw-page-title-main">JP-7</span> Jet fuel formulation for certain supersonic aircraft

Turbine Fuel Low Volatility JP-7, commonly known as JP-7 is a specialized type of jet fuel developed in 1955 for the Central Intelligence Agency (CIA) for use in its reconnaissance aircraft, the Lockheed A-12, and subsequently for aircraft with similar high speed performance, the Lockheed YF-12 and Lockheed SR-71. It was also used for the higher speed Boeing X-51 Waverider.

JP-8, or JP8, is a jet fuel, specified and used widely by the US military. It is specified by MIL-DTL-83133 and British Defence Standard 91-87, and similar to commercial aviation's Jet A-1, but with the addition of corrosion inhibitor and anti-icing additives.

JP-4, or JP4 was a jet fuel, specified in 1951 by the United States Department of Defense (MIL-DTL-5624). Its NATO code is F-40. It is also known as avtag.

<span class="mw-page-title-main">Hydrocarbon Oil Duty</span> Fuel tax imposed on road motor vehicles in UK

Hydrocarbon Oil Duty is a fuel tax levied on some fuels used by most road motor vehicles in the United Kingdom; with exceptions for local bus services, some farm and construction vehicles and aviation, which pay reduced or no fuel duty.

<span class="mw-page-title-main">Environmental impact of aviation</span> Effect of emissions from aircraft engines

Aircraft engines produce gases, noise, and particulates from fossil fuel combustion, raising environmental concerns over their global effects and their effects on local air quality. Jet airliners contribute to climate change by emitting carbon dioxide, the best understood greenhouse gas, and, with less scientific understanding, nitrogen oxides, contrails and particulates. Their radiative forcing is estimated at 1.3–1.4 that of CO2 alone, excluding induced cirrus cloud with a very low level of scientific understanding. In 2018, global commercial operations generated 2.4% of all CO2 emissions.

Jet Propellant Thermally Stable (JPTS) is a jet fuel originally developed in 1956 for the Lockheed U-2 reconnaissance aircraft.

<span class="mw-page-title-main">Sustainable biofuel</span> Non-fossil-based sustainable production

Sustainable biofuel is biofuel produced in a sustainable manner. It is not based on petroleum or other fossil fuels. It includes not using plants that are used for food stuff to produce the fuel thus disrupting the world's food supply.

<span class="mw-page-title-main">Aviation biofuel</span> Sustainable fuel used to power aircraft

An aviation biofuel is a biofuel used to power aircraft and is a sustainable aviation fuel (SAF). The International Air Transport Association (IATA) considers it a key element in reducing the environmental impact of aviation. Aviation biofuel is used to decarbonize medium and long-haul air travel. These types of travel generate the most emissions, and could extend the life of older aircraft types by lowering their carbon footprint. Synthetic paraffinic kerosene (SPK) refers to any non-petroleum-based fuel designed to replace kerosene jet fuel, which is often, but not always, made from biomass.

Worldwide commercial synthetic fuels plant capacity is over 240,000 barrels per day (38,000 m3/d), including indirect conversion Fischer–Tropsch plants in South Africa, Qatar, and Malaysia, and a Mobil process plant in New Zealand.

References

  1. ↑ Defence Standards. "Ministry of Defence Standard 91-91: Turbine Fuel, Kerosine Type, Jet A-1" (PDF). p. 1. Archived from the original (PDF) on 2022-03-07. Retrieved 2019-01-27.
  2. ↑ Chevron Products Corporation. "Aviation Fuels Technical Review" (PDF). Archived from the original (PDF) on 2015-09-07. Retrieved 2014-05-06.
  3. 1 2 3 Salvatore J. Rand (ed), Significance of Tests for Petroleum Products (8th Edition) ASTM International, 2010, ISBN   978-1-61583-673-4 page 88
  4. ↑ "Summary of Debriefing of German pilot Hans Fey" (PDF). Zenos' Warbird Video Drive-In.
  5. 1 2 "Aviation Lubricants". www.shell.com.au.
  6. ↑ Canada Flight Supplement. Effective 0901 Z 16 July 2020 to 0901Z 10 September 2020.
  7. ↑ 3号喷气燃料
  8. ↑ "3号喷气燃料".
  9. 1 2 ExxonMobil Aviation (April 9, 2016). "World Jet Fuel Specifications with Avgas Supplement: 2005 Edition" (PDF). Archived from the original (PDF) on 2016-04-09.
  10. 1 2 "Aviation Fuel — Jet Fuel Information". Csgnetwork.com. 2004-01-05. Retrieved 2010-11-28.
  11. ↑ "Handbook of Products" (PDF). Air BP. pp. 11–13. Archived from the original (PDF) on 2011-06-08.
  12. ↑ "FUEL DATA FOR COMBUSTION WITH AIR" (PDF). Isidoro Martínez Prof. of Thermodynamics, Ciudad Universitaria. 2014. Archived from the original (PDF) on 2014-05-01. Retrieved 2014-05-09.
  13. ↑ Soloiu, Valentin; Covington, April; Lewis, Jeff; Duggan, Marvin; Lobue, James; Jansons, Marcis (January 2012). "Performance of JP-8 Unified Fuel in a Small Bore Indirect Injection Diesel Engine for APU Applications". SAE Technical Paper Series. Vol. 1. SAE International. doi:10.4271/2012-01-1199 . Retrieved 2014-05-09.
  14. ↑ "Resource Guide To Aircraft Fire Fighting & Rescue". Aviation Safety Advisory Group of Arizona, Inc. 2014. Archived from the original on 2014-05-12. Retrieved 2014-05-09.
  15. ↑ Characteristics of Petroleum Products Stored and Dispensed (PDF), Petroleum Products Division - GN, p. 132, archived from the original (PDF) on 16 January 2017, retrieved 15 January 2017
  16. ↑ "Aviation Jet Fuel". World Oil Traders. Archived from the original on 21 August 2019. Retrieved 21 August 2019.
  17. ↑ Turbine Fuel, Aviation Kerosine Type, Jet A-1 NATO Code: F-35 Joint Service Designation: AVTUR (PDF) (25 August 2008 ed.), 8 April 2008, Ministry of Defence Standard 91-91, archived from the original (PDF) on 2010-08-14
  18. ↑ Standard Specification for Aviation Turbine Fuels, ASTM D1655-09a (2010). ASTM International, West Conshohocken, Pennsylvania, United States.
  19. ↑ Lombardo, David A. (July 2005), "Fuel-quality evaluation requires pilot vigilance", Aviation International News, archived from the original on 2011-04-30
  20. ↑ Jetstar Airways PTY LTD. (25 June 2020). Aircraft Serious Incident Investigation Report (PDF) (Report). Japan Transport Safety Board.
  21. ↑ Murray, B.J.; et al. (2011). "Supercooling of water droplets in jet aviation fuel". Fuel. 90: 433–435. doi:10.1016/j.fuel.2010.08.018.
  22. ↑ "The Shell Water Detector". Archived from the original on February 19, 2012.
  23. ↑ "Shell Aviation Fuels" (PDF). shell.com. Shell Oil Company. p. 4. Archived from the original (PDF) on 19 December 2014. Retrieved 27 November 2014.
  24. ↑ Aviation Fuel Archived 2012-04-20 at the Wayback Machine - US Centennial of Flight Commission, Retrieved 3 January 2012
  25. 1 2 Larry Reithmaier, Mach 1 and Beyond: The Illustrated Guide to High-Speed Flight, (McGraw-Hill Professional, 1994), ISBN   0070520216, page 104
  26. ↑ Clark, John D (1972). Ignition! An Informal History of Liquid Rocket Propellants. New Brunswick, New Jersey: Rutgers University Press. p. 33. ISBN   0-8135-0725-1.
  27. ↑ Characteristics of Fuels Archived 2007-01-26 at the Wayback Machine Marine Corps Schools Detachment — Ft. Leonard Wood
  28. ↑ "Rp-3和Rp-5煤油对飞机动力装置和燃油系统试飞的影响". 工程与试验 (1): 49–51. 2014. doi:10.3969/j.issn.1674-3407.2014.01.014.
  29. ↑ UK MOD DEF STAN 23-8 ISSUE 2 Archived 2005-05-17 at the Wayback Machine
  30. ↑ "Shell Fuels Technical Data Sheet - F-44" (PDF). Archived from the original (PDF) on 2013-07-18. Retrieved 2012-05-11.
  31. ↑ The History of Jet Fuel Archived October 18, 2012, at the Wayback Machine Air BP
  32. ↑ "SR-71 Online - SR-71 Flight Manual: Section 1, Page 1-4". www.sr-71.org.
  33. 1 2 Aviation Fuel Properties (PDF). Coordinating Research Council. 1983. p. 3. CRC Report Nº 530. Archived (PDF) from the original on July 22, 2012.
  34. ↑ Coggeshall, Katharine. "Revolutionizing Tomahawk fuel". Los Alamos National Laboratory. Retrieved 20 May 2020.
  35. ↑ DTIC ADA186752: Military Jet Fuels, 1944-1987, Defense Technical Information Center, p. 5
  36. ↑ Planemakers challenged to find unleaded fuel option - The Wichita Eagle Archived June 6, 2009, at the Wayback Machine
  37. ↑ "Chapter 15: Fuels, Oils, Lubricants and Petroleum Handling Equipment: Military Fuels and the Single Fuel Concept" . Retrieved 19 May 2023.
  38. ↑ "ASTM D7566 - 20a Standard Specification for Aviation Turbine Fuel Containing Synthesized Hydrocarbons". www.astm.org.
  39. ↑ "Fuel Property, Emission Test, and Operability Results from a Fleet of Class 6 Vehicles Operating on Gas-To-Liquid Fuel and Catalyzed Diesel Particle Filters" (PDF). Archived from the original (PDF) on May 8, 2009.
  40. ↑ Lobo, Prem; Hagen, Donald E.; Whitefield, Philip D. (2011). "Comparison of PM Emissions from a Commercial Jet Engine Burning Conventional, Biomass, and Fischer–Tropsch Fuels". Environmental Science & Technology. 45 (24): 10744–10749. Bibcode:2011EnST...4510744L. doi:10.1021/es201902e. PMID   22043875.
  41. ↑ "Argonne GREET Publication: Life Cycle Analysis of Alternative Aviation Fuels in GREET". greet.es.anl.gov. Archived from the original on 2022-01-19. Retrieved 2018-01-05.
  42. ↑ "Corporan, E et al. (2010). Alternative Fuels Tests on a C-17 Aircraft: Emissions Characteristics, DTIC Document" (PDF). Archived (PDF) from the original on February 24, 2017.
  43. ↑ Anderson, B. E.; et al. (February 2011). "Alternative Aviation Fuel Experiment (AAFEX)" (PDF). NASA Langley Research Centre.
  44. ↑ "Best Synth Jet Fuel" (PDF).[ permanent dead link ]
  45. ↑ "Qatar Airways Becomes First to Operate Commercial Flight on GTL Jet Fuel Blend". Green Car Congress. 2009-10-12.
  46. ↑ "Sasol takes to the skies with the world's first fully synthetic jet fuel". Sasol. 2010-09-22. Archived from the original on 2011-05-15.
  47. ↑ Parry, Daniel (September 24, 2012). "Fueling the Fleet, Navy Looks to the Seas". Naval Research Laboratory News. Archived from the original on February 3, 2018. Retrieved June 18, 2014.
  48. ↑ Palmer, Roxanne (December 17, 2013). "How The Navy Might Spin Seawater Into Jet Fuel". International Business Times.
  49. ↑ Tozer, Jessica L. (April 11, 2014). "Energy Independence: Creating Fuel from Seawater". Armed with Science. U.S. Department of Defense. Archived from the original on November 4, 2019. Retrieved November 4, 2019.
  50. ↑ Koren, Marina (December 13, 2013). "Guess What Could Fuel the Battleships of the Future?". National Journal.
  51. ↑ Tucker, Patrick (April 10, 2014). "The Navy Just Turned Seawater Into Jet Fuel". Defense One.
  52. ↑ Ernst, Douglas (April 10, 2014). "U.S. Navy to turn seawater into jet fuel". The Washington Times.
  53. ↑ "World First – Synthetic Kerosene Takes to the Air" . Retrieved 2022-03-31.
  54. ↑ Sirak, Michael (2010-01-27). "B-2 Goes Synthetic". Air & Space Forces Magazine. Retrieved 2023-01-15.
  55. ↑ Dowdell, Richelle (February 10, 2011). "Officials certify first aircraft for biofuel usage". The Official Website of the U.S. Air Force. Archived from the original on December 12, 2012. Retrieved March 7, 2012.
  56. 1 2 3 4 Morales, Alex; Louise Downing (October 18, 2011). "Fat Replaces Oil for F-16s as Biofuels Head to War: Commodities". BusinessWeek. Archived from the original on February 26, 2012. Retrieved March 7, 2012.
  57. ↑ "UOP To Develop Technology to Produce Bio JP-8 for Military Jets". Green Car Congress. June 28, 2007. Retrieved March 7, 2012.
  58. ↑ "Air Force jets perform first flyover using alternative fuel". Air Force. 31 March 2011. Retrieved 2022-03-27.
  59. ↑ "Beginner's Guide to Aviation Biofuels" (PDF). Air Transport Action Group. May 2009. Retrieved 2009-09-20.[ permanent dead link ]
  60. ↑ "A Promising Oil Alternative: Algae Energy". The Washington Post . 2008-01-06. Retrieved 2010-05-06.
  61. ↑ "Gfi Home". Greenflightinternational.com. Archived from the original on 2011-01-25. Retrieved 2010-11-28.
  62. ↑ "Tecbio". Tecbio. Archived from the original on 2011-01-23. Retrieved 2010-11-28.
  63. ↑ "Crop this: Virgin takes off with nut-fuel - 26 Feb 2008 - NZ Herald: New Zealand Business, Markets, Currency and Personal Finance News". NZ Herald. 2008-02-26. Retrieved 2010-11-28.
  64. ↑ "2008 Environment Report". Boeing. Retrieved 2010-11-28.
  65. ↑ "Velocys press release, "Partnership formed, aimed at waste-to-jet-fuel plants in UK". September 18, 2017. Archived from the original on January 5, 2018. Retrieved January 5, 2018.
  66. ↑ Koch, Wendy (November 7, 2011). "United flies first US passengers using fuel from algae". USA Today. Retrieved December 16, 2011.
  67. ↑ "United Airlines Flies First U.S. Commercial Advanced Biofuel Flight". United Continental Holdings, Inc. Archived from the original on April 12, 2013. Retrieved November 7, 2011.
  68. ↑ Price, Toby (November 10, 2011). "Solazyme completes first commercial flight on biofuel". Renewable Energy Magazine. Retrieved 13 February 2013.
  69. ↑ "More airlines fold as fuel prices soar: IATA". News.asiaone.com. Archived from the original on 2011-07-03. Retrieved 2010-11-28.
  70. ↑ "Revised ASTM Standard Expands Limit on Biofuel Contamination in Jet Fuels | www.astm.org". www.astm.org. Archived from the original on 2020-03-08. Retrieved 2020-09-14.
  71. ↑ "Jet fuel consumption on Index Mundi" . Retrieved 19 November 2014.
  72. 1 2 3 Jasper Faber and Aoife O'Leary (November 2018). "Taxing aviation fuels in the EU" (PDF). CE Delft. Transport and Environment. p. 16. Archived from the original (PDF) on 13 November 2020. Retrieved 20 June 2020. The Chicago Convention provides no obstacle to placing a tax on domestic or intra-EU aviation fuel. The Convention bans parties from imposing taxes on fuel already on board an aircraft when it lands in another country but it contains no prohibition on taxing the fuel sold to aircraft in a country. Further, the Chicago Convention is not applicable to domestic aviation. It is often suggested that the Chicago Convention exempts aviation fuel from taxation. However, the Chicago Convention only exempts fuels already on-board aircraft when landing, and retained on board when leaving, from taxation. Article 24 states: 'Fuel... on board an aircraft of a contracting State, on arrival in the territory of another contracting State and retained on board on leaving the territory of that State shall be exempt from customs duty, inspection fees or similar national or local duties and charges.' Therefore, Article 24 does not prohibit the taxing of fuel taken on board in a particular country but rather prohibits the taxation of fuel that was already on board the aircraft when it landed, i.e. Member States cannot tax aviation fuel purchased in another country that arrives on board the aircraft. The purpose of this Article is to prevent double taxation.
  73. ↑ "Council Directive 2003/96/EC of 27 October 2003, restructuring the Community framework for the taxation of energy products and electricity". Official Journal of the European Union. Eur-Lex. 27 October 2002. Retrieved 20 June 2020. Member States shall exempt the following from taxation... energy products supplied for use as fuel for the purpose of air navigation other than in private pleasure-flying.
  74. ↑ Mattie, David R.; Sterner, Teresa R. (2011-07-15). "Past, present and emerging toxicity issues for jet fuel". Toxicology and Applied Pharmacology. 254 (2): 127–132. doi:10.1016/j.taap.2010.04.022. ISSN   1096-0333. PMID   21296101.
  75. 1 2 3 Ritchie, Glenn; Still, Kenneth; Rossi III, John; Bekkedal, Marni; Bobb, Andrew; Arfsten, Darryl (2003-01-01). "Biological And Health Effects Of Exposure To Kerosene-Based Jet Fuels And Performance Additives". Journal of Toxicology and Environmental Health, Part B. 6 (4): 357–451. Bibcode:2003JTEHB...6..357R. doi:10.1080/10937400306473. ISSN   1093-7404. PMID   12775519. S2CID   30595016.
  76. ↑ Robledo, R. F.; Barber, D. S.; Witten, M. L. (1999). "Modulation of bronchial epithelial cell barrier function by in vitro jet propulsion fuel 8 exposure". Toxicological Sciences. 51 (1): 119–125. doi: 10.1093/toxsci/51.1.119 . ISSN   1096-6080. PMID   10496683.
  77. ↑ Harris, D. T.; Sakiestewa, D.; Titone, D.; Robledo, R. F.; Young, R. S.; Witten, M. (2000). "Jet fuel-induced immunotoxicity". Toxicology and Industrial Health. 16 (7–8): 261–265. Bibcode:2000ToxIH..16..261H. doi:10.1177/074823370001600702. ISSN   0748-2337. PMID   11693943. S2CID   42673565.
  78. ↑ Knave, B.; Persson, H. E.; Goldberg, J. M.; Westerholm, P. (1976). "Long-term exposure to jet fuel: an investigation on occupationally exposed workers with special reference to the nervous system". Scandinavian Journal of Work, Environment & Health. 2 (3): 152–164. doi: 10.5271/sjweh.2809 . ISSN   0355-3140. PMID   973128.
  79. ↑ Morata, Thais C.; Hungerford, Michelle; Konrad-Martin, Dawn (2021-08-18). "Potential Risks to Hearing Functions of Service Members From Exposure to Jet Fuels". American Journal of Audiology. 30 (3S): 922–927. doi: 10.1044/2021_AJA-20-00226 . ISSN   1059-0889. PMID   34407375.
  80. ↑ Kaufman, Laura R.; LeMasters, Grace K.; Olsen, Donna M.; Succop, Paul (2005). "Effects of concurrent noise and jet fuel exposure on hearing loss". Journal of Occupational and Environmental Medicine. 47 (3): 212–218. doi:10.1097/01.jom.0000155710.28289.0e. ISSN   1076-2752. PMID   15761316. S2CID   1195860.
  81. ↑ Bendtsen, Katja M.; Bengtsen, Elizabeth; Saber, Anne T.; Vogel, Ulla (2021-02-06). "A review of health effects associated with exposure to jet engine emissions in and around airports". Environmental Health: A Global Access Science Source. 20 (1): 10. Bibcode:2021EnvHe..20...10B. doi: 10.1186/s12940-020-00690-y . ISSN   1476-069X. PMC   7866671 . PMID   33549096.
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