Which of the following are examples of persistent organic pollutants (POPs)?…
2024
Which of the following are examples of persistent organic pollutants (POPs)?
(A) Polychlorinated biphenyls
(B) Formaldehyde
(C) Dioxins
(D) Furans
Choose the most appropriate answer from the options given below:
Answer: B. (A), (C) and (D) only — ConceptPersistent organic pollutants are toxic organic chemicals that resist environmental degradation, remain in the environment for long periods,…
- A.
(A), (B) and (C) only
- B.
(A), (C) and (D) only
- C.
(B), (C) and (D) only
- D.
(A), (B) and (D) only
Show answer & explanation
Correct answer: B
Concept
Persistent organic pollutants are toxic organic chemicals that resist environmental degradation, remain in the environment for long periods, bioaccumulate in living organisms, and can travel over long distances.
The Stockholm Convention lists industrial POPs and unintentional by-products, including polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins, and polychlorinated dibenzofurans.
Application
Among the substances in the stem, polychlorinated biphenyls, dioxins, and furans belong to these recognized POP categories. Formaldehyde is a volatile organic compound and is not listed as a POP under the Stockholm Convention.
Contrast
Polychlorinated biphenyls are listed industrial persistent organic pollutants.
Formaldehyde is a volatile organic compound rather than a listed persistent organic pollutant.
Polychlorinated dibenzo-p-dioxins are listed unintentional persistent organic pollutants.
Polychlorinated dibenzofurans are listed unintentional persistent organic pollutants.
Cross-check
The accepted set contains the three substances named in the Convention's POP listings and excludes formaldehyde. Therefore, the required combination is polychlorinated biphenyls, dioxins, and furans.