Mustard gas or sulfur mustard is any of several chemical compounds that contain the chemical structure SCH2CH2Cl. In the wider sense, compounds with the substituent SCH2CH2X and NCH2CH2X are known as sulfur mustards and nitrogen mustards (X = Cl, Br), respectively. Such compounds are potent alkylating agents, which can interfere with several biological processes. Also known as mustard agents, this family of compounds are infamous cytotoxic and blister agents with a long history of use as chemical weapons. The name mustard gas is technically incorrect: the substances, when dispersed, are often not gases but a fine mist of liquid droplets. Sulfur mustards are viscous liquids at room temperature and have an odor resembling mustard plants, garlic, or horseradish, hence the name. When pure, they are colorless, but when used in impure forms, such as in warfare, they are usually yellow-brown. Mustard gases form blisters on exposed skin and in the lungs, often resulting in prolonged illness ending in death. The typical mustard gas is the organosulfur compound called bis(2-chloroethyl) sulfide.
Phosgene is an organic chemical compound with the formula COCl2. It is a toxic, colorless gas; in low concentrations, its musty odor resembles that of freshly cut hay or grass. It can be thought of chemically as the double acyl chloride analog of carbonic acid, or strucurally as formaldehyde with the hydrogen atoms replaced by chlorine atoms. Phosgene is a valued and important industrial building block, especially for the production of precursors of polyurethanes and polycarbonate plastics.
Chemical warfare (CW) involves using the toxic properties of chemical substances as weapons. This type of warfare is distinct from nuclear warfare, biological warfare and radiological warfare, which together make up CBRN, the military acronym for chemical, biological, radiological, and nuclear, all of which are considered "weapons of mass destruction" (WMDs), a term that contrasts with conventional weapons.
Aberdeen Proving Ground (APG) is a U.S. Army facility located adjacent to Aberdeen, Harford County, Maryland, United States. More than 7,500 civilians and 5,000 military personnel work at APG. There are 11 major commands among the tenant units, including:
The use of toxic chemicals as weapons dates back thousands of years, but the first large-scale use of chemical weapons was during World War I. They were primarily used to demoralize, injure, and kill entrenched defenders, against whom the indiscriminate and generally very slow-moving or static nature of gas clouds would be most effective. The types of weapons employed ranged from disabling chemicals, such as tear gas, to lethal agents like phosgene, chlorine, and mustard gas. This chemical warfare was a major component of the first global war and first total war of the 20th century. The killing capacity of gas was limited, with about 90,000 fatalities from a total of 1.3 million casualties caused by gas attacks. Gas was unlike most other weapons of the period because it was possible to develop countermeasures, such as gas masks. In the later stages of the war, as the use of gas increased, its overall effectiveness diminished. The widespread use of these agents of chemical warfare, and wartime advances in the composition of high explosives, gave rise to an occasionally expressed view of World War I as "the chemist's war" and also the era where weapons of mass destruction were created.
Stony Point is a town in Rockland County, New York, United States. It is part of the New York City Metropolitan Area. The town is located north of the town of Haverstraw, east and south of Orange County, and west of the Hudson River and Westchester County. The population was 14,813 at the 2020 census. The name of the town is derived from a prominent projection into the Hudson River.
Bear Mountain State Park is a 5,205-acre (21.06 km2) state park located on the west bank of the Hudson River in Rockland and Orange counties, New York. The park offers biking, hiking, boating, picnicking, swimming, cross-country skiing, cross-country running, sledding and ice skating. It also includes several facilities such as the Perkins Memorial Tower, the Trailside Museum and Zoo, the Bear Mountain Inn, a merry-go-round, pool, and a skating rink. It also hosts the Bear Mountain Circle, where the historic Palisades Interstate Parkway and Bear Mountain Bridge meet. It is managed by the Palisades Interstate Park Commission, which is overseen by the State of New York.
The United States is known to have possessed three types of weapons of mass destruction: nuclear weapons, chemical weapons, and biological weapons. The U.S. is the only country to have used nuclear weapons on another country, when it detonated two atomic bombs over two Japanese cities of Hiroshima and Nagasaki during World War II. It had secretly developed the earliest form of the atomic weapon during the 1940s under the title "Manhattan Project". The United States pioneered the development of both the nuclear fission and hydrogen bombs. It was the world's first and only nuclear power for four years, from 1945 until 1949, when the Soviet Union produced its own nuclear weapon. The United States has the second-largest number of nuclear weapons in the world, after the Russian Federation.
Chemical, biological (CB) — and sometimes radiological — warfare agents were assigned what is termed a military symbol by the U.S. military until the American chemical and biological weapons programs were terminated. Military symbols applied to the CB agent fill, and not to the entire weapon. A chemical or biological weapon designation would be, for example, "Aero-14/B", which could be filled with GB, VX, TGB, or with a biological modification kit – OU, NU, UL, etc. A CB weapon is an integrated device of (1) agent, (2) dissemination means, and (3) delivery system.
Doodletown was an isolated hamlet in the Town of Stony Point, Rockland County, New York, United States. Purchased by the Palisades Interstate Park Commission during the 1960s, it is now part of Bear Mountain State Park and a popular destination for hikers, birdwatchers, botanists, and local historians. It is located north of Jones Point, west of Iona Island, and southeast of Orange County. The former settlement is now a ghost town.
Iona Island is a 556-acre (2.25 km2) island of the Hudson River in the town of Stony Point, New York, on its west bank. The island is located approximately one mile (1.6 km) south of the Bear Mountain Bridge and is separated from the Hudson's western shore by mudflats and freshwater tidal marshes. It is part of Bear Mountain State Park, although it is occasionally listed separately as Iona Island State Park. From 1899 to 1947 the island was used as the Naval Ammunition Depot Iona Island.
Tomkins Cove is a hamlet in the Town of Stony Point, Rockland County, New York, United States, located north of Stony Point; east of Harriman State Park; south of Doodletown and west of the Hudson River. It is located north-northwest of New York City. The population is approximately 1,739 and the ZIP Code is 10986. The community is served by the 786 exchange in area code 845.
Operation Top Hat was a "local field exercise" conducted by the United States Army Chemical Corps in 1953. The exercise involved the use of Chemical Corps personnel to test biological and chemical warfare decontamination methods. These personnel were deliberately exposed to these contaminants, so as to test decontamination.
Dunderberg Mountain is a 1,086-foot (331 m) mountain on the west bank of the Hudson River at the southern end of the Hudson Highlands. It lies just above Jones Point, New York, within Bear Mountain State Park and the town of Stony Point in Rockland County, New York.
Buckberg mountain is a hill above the Hudson River that played a role in American Revolutionary War strategy concerning the Hudson Highlands.
The recorded history of Rockland County, New York begins on February 23, 1798, when the county was split off from Orange County, New York and formed as its own administrative division of the state of New York. It is located 6 miles (9.7 km) north-northwest of New York City, and is part of the New York Metropolitan Area. The county seat is the hamlet of New City. The name comes from rocky land, an early description of the area given by settlers. Rockland is New York's southernmost county west of the Hudson River. It is suburban in nature, with a considerable amount of scenic designated parkland. Rockland County does not border any of the New York City boroughs, but is only 9.5 miles (15.3 km) north of Manhattan at the counties' two respective closest points
Chemical weapons were widely used by the United Kingdom in World War I. The use of poison gas was suggested by Winston Churchill and others in Mesopotamia during the interwar period, and also considered in World War II, although it appears that they were not actually used in these conflicts. While the UK was a signatory of the Hague Conventions of 1899 and 1907 which outlawed the use of poison gas shells, the conventions omitted mention of deployment from cylinders.
The United States chemical weapons program began in 1917 during World War I with the creation of the U.S. Army's Gas Service Section and ended 73 years later in 1990 with the country's practical adoption of the Chemical Weapons Convention. Destruction of stockpiled chemical weapons began in 1986 and was completed on July 7, 2023. The U.S. Army Medical Research Institute of Chemical Defense (USAMRICD), at Aberdeen Proving Ground, Maryland, continues to operate.
The Hudson River Reserve Fleet, formally the Hudson River National Defense Reserve Fleet and popularly the Mothball Fleet, was established by act of Congress in 1946 as a component of the National Defense Reserve Fleet. It was first located off Tarrytown, New York, on the Hudson River, one of eight anchorages in the United States to provide a sizable reserve of merchant ships to support any military need arising.
RAF Bowes Moor was a chemical warfare agent (CWA) storage site run by the Royal Air Force during and after the Second World War. The site was to the north of the village of Bowes in what is now County Durham, England. The Bowes Moor geographical feature runs from the north to the south west of the village. The Royal Air Force used the site to stock its chemical weapon supply, most of which was disposed of in situ by burning. The site, which closed in 1947, is known for the dangerous chemicals which leached into the soil.
