| persistent organic pollutant |
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| CHEBI:77853 |
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| Any environmental contaminant that is resistant to environmental degradation through photolytic, biological or chemical processes. Such substances can have significant impact on health and the environment, as they persist in the environment, bioaccumulate in animal tissue and so biomagnify in food chains. |
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This entity has been manually annotated by the ChEBI Team.
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| Members of
persistent organic pollutant Class |
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polybromodiphenyl ether
Definition :
An aromatic ether that is diphenyl ether carrying between 2 and 10 bromo substituents attached to the two benzene rings.
environmentally persistent free radical
Definition :
Any organic free radical stabilized on or inside other fine particles (PM2.5). It is a class of toxic air pollutants that have strong durability, can generate reactive oxygen species, and cause serious environmental pollution and toxicity.
DDE
Mass :318.020
Formula :
C14H8Cl4
triclosan
Mass :289.54200
Formula :
C12H7Cl3O2
toxaphene
Definition :
A highly complex mixture of several hundred polychlorinated compounds obtained by chlorination of camphene to an overall chlorine content of 67-69% by weight and having an overall empirical formula of C10H10Cl8 (including optical isomers, it could theoretically contain over 32,000 congeners). Toxaphene was used from the mid-1940s as an agricultural insecticide (mostly in the USA, particularly on corn and soybeans). Use increased with the phasing out of DDT in the 1970s (it became the most heavily manufactured pesticide in the US) but it is now banned due to concerns about toxicity and carcinogenicity. Total production since its first use is estimated at around 500,000 tons. In the environment, most of the components of toxaphene get metabolised, but from 10 to 100 resist biodegradation, depending on the medium and the specialisation of the enzyme system. Breathing, drinking or eating high levels of toxaphene can damage the lungs, kidneys, and nervous system.
aldrin
Mass :364.91000
Formula :
C12H8Cl6
DDT
Mass :354.48476
Formula :
C14H9Cl5
mirex
Mass :545.53940
Formula :
C10Cl12
polychlorobiphenyl
Definition :
A biphenyl compound containing between 2 and 10 chlorine atoms attached to the two benzene rings.
polychlorinated dibenzodioxines and related compounds
Definition :
Organochlorine compounds that are polychlorinated dibenzodioxines and structurally related entities that are persistant organic pollutants. These include polychlorinated dibenzofurans as well as polychlorinated and polybrominated biphenyls They vary widely in their toxicity, but their toxic mode of action is through the aryl hydrocarbon receptor.
polychlorinated dibenzofuran
Definition :
A member of the class of benzofurans that is benzofuran in which two or more of the hydrogens have reen replaced by chlorines.
polybromobiphenyl
Definition :
A biphenyl compound containing between 2 and 10 bromine atoms attached to the two benzene rings.
brominated flame retardant
Definition :
Any organobromine compound that is used as a flame retardant. These chemicals are widely incorporated as additives in consumer products such as electronics, vehicles, polyurethane foams etc, to make them less flammable.
endrin
Mass :380.900
Formula :
C12H8Cl6O
pyrene
Mass :202.256
Formula :
C16H10
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