What are persistent organic pollutants kids?
Persistent organic pollutants (POPs) include pesticides and industrial chemicals that were manufactured in great quantities during the 20th century. Their use resulted in beneficial outcomes such as increased crop yields and killing of unwanted pests.
What are persistent organic pollutants simple definition?
Persistent organic pollutants (POPs) 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.
What is an example of persistent organic pollutants?
The most commonly encountered POPs are organochlorine pesticides, such as DDT, industrial chemicals, polychlorinated biphenyls (PCB) as well as unintentional by-products of many industrial processes, especially polychlorinated dibenzo-p-dioxins (PCDD) and dibenzofurans (PCDF), commonly known as dioxins.
What is the meaning of organic pollutant?
Organic pollution is a type of chemical pollution caused by carbon pollutants, such as organic matter (liquid manure, sewage treatment sludge, etc.), organochlorides (DDT) or even polychlorinated biphenyls (PCB).
What makes a persistent organic pollutant?
Persistent Organic Pollutants (POPs) are toxic substances composed of organic (carbon-based) chemical compounds and mixtures. They include industrial chemicals like PCBs and pesticides like DDT. They are primarily products and by-products from industrial processes, chemical manufacturing and resulting wastes.
What are persistent organic pollutants used for?
Persistent organic pollutants (POPs), sometimes known as “forever chemicals”, are organic compounds that are resistant to environmental degradation through chemical, biological, and photolytic processes.
What are persistent pollutants give an example?
Types of persistent organic pollutants (POPs) include intentionally produced chemicals such as pesticides aldrin, chlordane, DDT (1,1,1-Trichloro-2,2-bis[p-chlorophenyl]-ethane), dieldrin, endrin, heptachlor, mirex, hexachlorobenzene (HCB), and toxaphene as well as industrial chemicals such as polychlorinated biphenyls …
What are examples of persistent pollutants?
Examples of persistent organic pollutants include:
- Aldrin.
- Chlordane.
- DDT.
- Dieldrin.
- Endrin.
- Heptachlor.
- Hexachlorobenzene.
- Mirex.
What are the main sources of persistent organic pollutants?
Sources of pollution from POPs include the improper use and/or disposal of agrochemicals and industrial chemicals, elevated temperatures and combustion processes, and unwanted by-products of industrial processes or combustion (http://web.worldbank.org).
Where are persistent organic pollutants?
People and animals are exposed to POPs mostly through their diet, occupationally, or while growing in the womb. For humans not exposed to POPs through accidental or occupational means, over 90% of exposure comes from animal product foods due to bioaccumulation in fat tissues and bioaccumulate through the food chain.
What are the key properties of persistent organic pollutants?
develop hemispheric emission inventories and projections for POPs (especially PAHs and PCDD/Fs).
What are some examples of organic pollutants?
– Dioxins and Furans. – Polybrominated flame retardants. – Perfluoro octane sulfonate (PFOS) substances. – Heavy metals such as mercury and lead. – Ozone Depleting Substances (ODSs).
What are persistent organic pesticides?
persistent organic pollutants (pops) are organic compounds that contain a number of artificially produced chemical compounds like polychlorinated biphenyls (pcbs), dioxins and organochlorine (oc) pesticides, perfluorinated compounds (pfcs), and polyaromatic hydrocarbons (pahs) that remain in the environment due to their resistance to photolytic …
What are the organic pollutants in environment?
to raise awareness about the health and environmental impacts of persistent organic pollutants (POPs),