NURSING ANM AND GNM

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NURSING EXAM QUESTIONS

TOXICOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
One of the primary concerns about the 12 POP’s such as DDT and PCBs is that they
A
Are soluble in water and cause large-scale problems
B
Can be concentrated in the fatty tissues of an organism
C
Are rarely found but are very toxic
D
Quickly breakdown into other more harmful pollutants
E
Are only found in plants and disrupt photosyntheis
Explanation: 

Detailed explanation-1: -The first 12 POPs under the Stockholm Convention were aldrin, chlordane, dieldrin, endrin, heptachlor, hexachlorobenzene, mirex, toxaphene, polychlorinated biphenyls (PCBs), DDT, PCDD (dioxins) and PCDF (furans).

Detailed explanation-2: -These were a group of 12 highly persistent and toxic chemicals: aldrin, chlordane, DDT, dieldrin, endrin, heptachlor, hexachlorobenzen, mirex, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and toxaphen.

Detailed explanation-3: -Persistent organic pollutants (POPs) are hazardous chemicals that threaten human health and the planet’s ecosystems. POPs remain intact for a long time, widely distributed throughout the environment, accumulate and magnify in living organisms through the food chain, and are toxic to both humans and wildlife.

There is 1 question to complete.
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