Environmental health ethics

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Environmental health ethics is a field of study that combines environmental health policies and ethical consideration towards a mutually acceptable goal. Given the myriad of environmental issues facing society today a sound ethical background can be applied in an attempt to reach a compromise between conflicting interests, like anthropocentrism, global stewardship, religious values, economic development, and public health. A small sample of the scientific disciplines involved in environmental health ethics include: ecology, toxicology, epidemiology, and exposure biology.

Contents

Ethical approaches

Virtue theories

Christian ethics

Natural rights

Kantianism

John Stuart Mill's Utilitarianism

Richard Brandt's Utilitarianism

W. D. Ross's view

Environmental health topics

Environmental health embodies a wide range of topics with which there are many ethical issues. Many of these issues can be traced back to a moral obligation towards to life forms and other units of biological organization, like ecosystems, and the nature of that obligation. Humanity's place within any given ecosystem must be weighed against the importance of regional, and global health of the environment as a whole. Human and animal rights, property use, and other freedoms can be combined with other factors like to form an ethical dilemma social justice, equality, sustainability, and globalism to form ethical dilemmas. In response to difficulties with using moral theories to resolve ethical dilemmas various approaches can be used. A case-by-case approach may be too slow when considering the volume of issues at present, so an alternative may be better suited to the task. Taking into account commonly accepted moral virtues can guide conduct and address conflicts between values, rules, and obligations. Most, if not all, of these generally held principles can be found in the ethical approaches listed above, an example of which may be 'respect human rights'. This Principle-Based Method for ethical decision making can be viewed below.[ citation needed ]

  1. State the question or problem.
  2. Gather the relevant information.
  3. Explore different opinions.
  4. Apply ethical principles to the different options.
  5. Resolve any conflicts among ethical principles.
  6. Take action. [1]

After settling on a methodology for analyzing different ethical situations we can turn to a broad survey of some of the most relevant issues which face humanity today.

Pest control

Pesticides are used throughout the world in an attempt to control, repel, or kill pest species. Though many species of insect can be commonly identified throughout the world, others may harm human health and well-being while providing a benefit to the overall environment of an area. One example of the phenomenon is a bee's ability to sting an individual who may have a serious allergic reaction, though they also play a crucial role in the pollination of an ecosystem. A further example would be various species of bat, which though they can transmit rabies, also help to control mosquito populations.[ citation needed ]

Perhaps the biggest event in the history of pesticide use is the widespread use of DDT to control various pests, including mosquitoes and lice. Its long-term effects had not been sufficiently documented and thus it was assumed to be of low toxicity. Over time the widespread use of DDT began to have serious environmental and human health consequences. Organisms further up the food chain showed significant amounts of DDT in their tissues and this presence had adverse health effects, for example, the weakening of predatory bird eggshells and fish kills. Adverse effects among humans included endocrine system disruption which can lead to reproductive complications.[ citation needed ]

Among the most disruptive pesticides are those dubbed Persistent organic pollutants (POPs) which do not break down easily in the environment, or if they do they become something equally harmful. Because POPs represent such a threat to organisms within an environment, especially those higher on a food chain, specific international legislation referred to as the Stockholm Convention banned several of them being used. Some of these pollutants are DDT, aldrin, chlordane, dieldrin, endrin, heptachlor, hexachlorobenzene, and toxaphene. [2]

With these considerations in place it falls onto lawmakers to regulate responsible use of pesticides, and ethics can provide a starting point to consider the best option. Extensive use of pesticides would improve life in the short-term but be harmful in the long-term, and completely banning their use would likewise be detrimental to overall environmental and human health. One strategy to encourage is called Integrated Pest Management (IPM), in which pesticides are responsibly used to limit agricultural loss but also watched for growing resistance and environmental toxicity. The Center for Disease Control (CDC) have also taken measured to educate clinicians and the public about relevant issues and the best ways to manage pesticide use. [3]

Genetic engineering, food, and nutrition

Genetic engineering concerns the application of scientific alteration of plant and animal DNA in order to combat pests, disease, drought, and other factors which can adversely harm the organism. Objections to genetically modified organisms (GMOs) include theological (playing God) and economic (GMOs can be costly) viewpoints. Genetic engineering of both plants and animals must pass through FDA legislation, which may include public labeling of the product or otherwise marking it as genetically modified.[ citation needed ]

Food and nutrition also fall under the category of things regulated by the FDA, however, the ethics of this regulation are not always clear. Health consequences of unsafe food, eating in overlarge quantities, are well documented yet in all societies there is no legislation against over-consumption. Ethical properties of utilitarianism and social justice conflict with humanity's freedom of choice in the determining of access to healthy, safe food.

Pollution and waste

Air, water, and solid waste pollution are environmental health issues which can adversely affect people, plants, and animals. From an ethical standpoint many things about pollutants can be studied, like questions of disposal, storage, recycling, and responsibility. A few examples of air pollutants include particulate matter, sulfur dioxide, nitrogen oxides, carbon oxides, chlorofluorocarbons, and heavy metals (e.g. mercury). Perhaps the largest ethical debate concerning air pollution is how to balance economic development against the interests of the public health, safety, and cleanliness. With both sides offering benefits and drawbacks it can be difficult to establish an acceptable compromise. Legislation enacted to prevent widespread use of chlorofluorocarbons, which cause significant environmental damage, can be seen as one instance of economic development taking a lower priority to public health.

Water pollution is another type of widespread contaminant which has ethical implications in mitigating the source and balancing conflicting priorities. The two types of water contaminants are anthropogenic compounds (generally referred to as pollutants, such as disinfection products, metals, municipal and agricultural waste, and petroleum and coal hydrocarbons) and natural contaminants (such as microorganisms or chemicals like arsenic and nitrogen, which are naturally present in the soil). the common misconception is that chemicals leaking into the soil will be diluted over time and rendered harmless. This theory does not take into account persistent organic pollutants, which do not break down easily, and sometimes break down into more harmful constituents. Most industrialized nations have legislation in place to protect the public from impure drinking water. The Safe Drinking Water Act of 1974 established maximum levels of pollutants in public drinking water, however its power to regulate private sources of bottled water or wells is severely limited. An additional issue regarding water pollution is the relative scarcity of clean fresh water on the earth, an issue which acutely presents itself in areas prone to drought. Agriculture uses a great deal of water, so much so that shortages in drought-prone areas can significantly affect crop yield. The main ethical issues with water pollution is whether growth should be restricted in order to preserve public health. An additional issue is the regulation of private corporations, whose activities may put populations of citizens at risk for groundwater contamination.

Solid waste pollution includes pollutants like agricultural waste, construction waste, electronic waste, hazardous waste, medical, and mining waste. The two prevailing strategies for solid waste management are prevention and treatment/disposal. Waste prevention is the preferable, both economically and environmentally, as it does not necessitate costly removal and storage. Many of the same ethical issues related above manifest themselves with the handling and storage of solid waste, as well as an additional social justice issue of exactly where the storage area for solid waste should be located.

Chemical regulation

Chemical regulation, including carbon particles and nanotubes and nanotechnology, are very new technologies whose long-term effects have not been satisfactorily studied. This lack of research argues that cautionary use of these products is warranted, especially when short-term effects include harmful symptoms. In opposition to this caution is the nanotechnology industry which is growing very rapidly and may be able to alleviate many of the problems facing society today, like selective cancer treatment and the energy crisis. Perhaps the largest obstacle to testing occurs with the sheer diversity of nanoparticles, of which the only unifying factor is their minuscule size.

Related Research Articles

<span class="mw-page-title-main">Pollutant</span> Substance or energy damaging to the environment

A pollutant or novel entity is a substance or energy introduced into the environment that has undesired effects, or adversely affects the usefulness of a resource. These can be both naturally forming or anthropogenic in origin. Pollutants result in environmental pollution or become public health concerns when they reach a concentration high enough to have significant negative impacts.

<span class="mw-page-title-main">Pollution</span> Introduction of contaminants that cause adverse change

Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance or energy. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.

<span class="mw-page-title-main">Pesticide</span> Substance used to destroy pests

Pesticides are substances that are meant to control pests. This includes herbicide, insecticide, nematicide, molluscicide, piscicide, avicide, rodenticide, bactericide, insect repellent, animal repellent, microbicide, fungicide, and lampricide. The most common of these are herbicides, which account for approximately 50% of all pesticide use globally. Most pesticides are intended to serve as plant protection products, which in general, protect plants from weeds, fungi, or insects. As an example, the fungus Alternaria solani is used to combat the aquatic weed Salvinia.

<span class="mw-page-title-main">Water pollution</span> Contamination of water bodies

Water pollution is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water pollution results when contaminants mix with these water bodies. Contaminants can come from one of four main sources: sewage discharges, industrial activities, agricultural activities, and urban runoff including stormwater. Water pollution is either surface water pollution or groundwater pollution. This form of pollution can lead to many problems, such as the degradation of aquatic ecosystems or spreading water-borne diseases when people use polluted water for drinking or irrigation. Another problem is that water pollution reduces the ecosystem services that the water resource would otherwise provide.

<span class="mw-page-title-main">Bioremediation</span> Process used to treat contaminated media such as water and soil

Bioremediation broadly refers to any process wherein a biological system, living or dead, is employed for removing environmental pollutants from air, water, soil, flue gasses, industrial effluents etc., in natural or artificial settings. The natural ability of organisms to adsorb, accumulate, and degrade common and emerging pollutants has attracted the use of biological resources in treatment of contaminated environment. In comparison to conventional physicochemical treatment methods bioremediation may offer considerable advantages as it aims to be sustainable, eco-friendly, cheap, and scalable. Most bioremediation is inadvertent, involving native organisms. Research on bioremediation is heavily focused on stimulating the process by inoculation of a polluted site with organisms or supplying nutrients to promote the growth. In principle, bioremediation could be used to reduce the impact of byproducts created from anthropogenic activities, such as industrialization and agricultural processes. Bioremediation could prove less expensive and more sustainable than other remediation alternatives.

<span class="mw-page-title-main">Environmental chemistry</span> Scientific study of the chemical and phenomena that occur in natural places

Environmental chemistry is the scientific study of the chemical and biochemical phenomena that occur in natural places. It should not be confused with green chemistry, which seeks to reduce potential pollution at its source. It can be defined as the study of the sources, reactions, transport, effects, and fates of chemical species in the air, soil, and water environments; and the effect of human activity and biological activity on these. Environmental chemistry is an interdisciplinary science that includes atmospheric, aquatic and soil chemistry, as well as heavily relying on analytical chemistry and being related to environmental and other areas of science.

<span class="mw-page-title-main">Aquatic toxicology</span>

Aquatic toxicology is the study of the effects of manufactured chemicals and other anthropogenic and natural materials and activities on aquatic organisms at various levels of organization, from subcellular through individual organisms to communities and ecosystems. Aquatic toxicology is a multidisciplinary field which integrates toxicology, aquatic ecology and aquatic chemistry.

<span class="mw-page-title-main">Persistent organic pollutant</span> Organic compounds that are resistant to environmental degradation

Persistent organic pollutants (POPs) are organic compounds that are resistant to degradation through chemical, biological, and photolytic processes. They are toxic chemicals that adversely affect human health and the environment around the world. Because they can be transported by wind and water, most POPs generated in one country can and do affect people and wildlife far from where they are used and released.

<span class="mw-page-title-main">Biomagnification</span> Process of progressive accumulation in food chain

Biomagnification, also known as bioamplification or biological magnification, is the increase in concentration of a substance, e.g a pesticide, in the tissues of organisms at successively higher levels in a food chain. This increase can occur as a result of:

<span class="mw-page-title-main">Environmental hazard</span> Harmful substance, a condition or an event

An environmental hazard is a substance, state or event which has the potential to threaten the surrounding natural environment or adversely affect people's health, including pollution and natural disasters such as storms and earthquakes. pictogram for environmental hazard]]It can include any single or combination of toxic chemical, biological, or physical agents in the environment, resulting from human activities or natural processes, that may impact the health of exposed subjects, including pollutants such as heavy metals, pesticides, biological contaminants, toxic waste, industrial and home chemicals.

<span class="mw-page-title-main">Soil contamination</span> Pollution of land by human-made chemicals or other alteration

Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste. The most common chemicals involved are petroleum hydrocarbons, polynuclear aromatic hydrocarbons, solvents, pesticides, lead, and other heavy metals. Contamination is correlated with the degree of industrialization and intensity of chemical substance. The concern over soil contamination stems primarily from health risks, from direct contact with the contaminated soil, vapour from the contaminants, or from secondary contamination of water supplies within and underlying the soil. Mapping of contaminated soil sites and the resulting cleanups are time-consuming and expensive tasks, and require expertise in geology, hydrology, chemistry, computer modeling, and GIS in Environmental Contamination, as well as an appreciation of the history of industrial chemistry.

<span class="mw-page-title-main">Methoxychlor</span> Synthetic organochloride insecticide, now obsolete.

Methoxychlor is a synthetic organochloride insecticide, now obsolete.

<span class="mw-page-title-main">Environmental toxicology</span>

Environmental toxicology is a multidisciplinary field of science concerned with the study of the harmful effects of various chemical, biological and physical agents on living organisms. Ecotoxicology is a subdiscipline of environmental toxicology concerned with studying the harmful effects of toxicants at the population and ecosystem levels.

<span class="mw-page-title-main">Environmental impact of pesticides</span> Environmental effect

The environmental effects of pesticides describe the broad series of consequences of using pesticides. The unintended consequences of pesticides is one of the main drivers of the negative impact of modern industrial agriculture on the environment. Pesticides, because they are toxic chemicals meant to kill pest species, can affect non-target species, such as plants, animals and humans. Over 98% of sprayed insecticides and 95% of herbicides reach a destination other than their target species, because they are sprayed or spread across entire agricultural fields. Other agrochemicals, such as fertilizers, can also have negative effects on the environment.

<span class="mw-page-title-main">Environmental effects of paint</span>

The environmental effects of paint can vary depending on the type of paint used and mitigation measures. Traditional painting materials and processes can have harmful effects on the environment, including those from the use of lead and other additives. Measures can be taken to reduce its environmental effects, including accurately estimating paint quantities so waste is minimized, and use of environmentally preferred paints, coating, painting accessories, and techniques.

<span class="mw-page-title-main">Agricultural pollution</span> Type of pollution caused by agriculture

Agricultural pollution refers to biotic and abiotic byproducts of farming practices that result in contamination or degradation of the environment and surrounding ecosystems, and/or cause injury to humans and their economic interests. The pollution may come from a variety of sources, ranging from point source water pollution to more diffuse, landscape-level causes, also known as non-point source pollution and air pollution. Once in the environment these pollutants can have both direct effects in surrounding ecosystems, i.e. killing local wildlife or contaminating drinking water, and downstream effects such as dead zones caused by agricultural runoff is concentrated in large water bodies.

<span class="mw-page-title-main">Assimilative capacity</span>

Assimilative capacity is the ability for pollutants to be absorbed by an environment without detrimental effects to the environment or those who use of it. Natural absorption into an environment is achieved through dilution, dispersion and removal through chemical or biological processes. The term assimilative capacity has been used interchangeably with environmental capacity, receiving capacity and absorptive capacity. It is used as a measurement perimeter in hydrology, meteorology and pedology for a variety of environments examples consist of: lakes, rivers, oceans, cities and soils. Assimilative capacity is a subjective measurement that is quantified by governments and institutions such as Environmental Protection Agency (EPA) of environments into guidelines. Using assimilative capacity as a guideline can help the allocation of resources while reducing the impact on organisms in an environment. This concept is paired with carrying capacity in order to facilitate sustainable development of city regions. Assimilative capacity has been critiqued as to its effectiveness due to ambiguity in its definition that can confuses readers and false assumptions that a small amount of pollutants has no harmful effect on an environment.

<span class="mw-page-title-main">Guam Environmental Protection Agency</span>

The Guam Environmental Protection Agency is a government agency of the United States territory of Guam.

Persistent, bioaccumulative and toxic substances (PBTs) are a class of compounds that have high resistance to degradation from abiotic and biotic factors, high mobility in the environment and high toxicity. Because of these factors PBTs have been observed to have a high order of bioaccumulation and biomagnification, very long retention times in various media, and widespread distribution across the globe. Most PBTs in the environment are either created through industry or are unintentional byproducts.

References

  1. Fox and DeMarco 2000; Beauchamp and Childress 2008; Shamoo and Resnik 2009
  2. Robson et al. 2010
  3. Center for Disease Control and Prevention 2005.