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Question

The Black-foot disease is caused by the contamination of ________ in drinking water.

The correct answer is
Arsenic

Black-foot Disease Cause

Black-foot disease, a distinctive peripheral vascular disease, is primarily caused by the long-term consumption of drinking water contaminated with specific toxic elements.

Identifying the Contaminant

Research and medical evidence strongly link Black-foot disease to elevated levels of Arsenic in drinking water sources. This condition is particularly prevalent in areas with high natural arsenic concentrations in groundwater.

Mechanism of Disease

Chronic exposure to arsenic disrupts cellular processes and damages blood vessels, leading to the characteristic symptoms of Black-foot disease, including skin lesions and gangrene, typically affecting the lower extremities.

Conclusion

Therefore, the contamination of drinking water with Arsenic is the direct cause of Black-foot disease.

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Important Questions from Impact of Pollutants on Human Health

  1. Which of the following pollutants is included in the Air Quality Index in India?

  2. Blue-baby syndrome can happen due to the excess of which component in the water?

  3. Match List I with List II

    List I

    List II

    Emitted Pollutants

    Environmental Impact

    A. Carbon dioxide

    I. Formation of acid rain

    B. Carbon monoxide

    II. Toxic and are carcinogenic

    C. Nitrogen oxides

    III. Toxic and can cause

    respiratory diseases

    D. Benzene and

    hydrocarbon

    IV. Contribution to global warming

    as a Greenhouse gas

    Choose the correct answer from the option given below:

  4. Given below are two statements:

    Statement I: Dioxins and furans are highly toxic substances produced mainly during incineration of municipal solid waste, hazardous and medical wastes.

    Statement II: Dioxins and furans play a crucial role in photochemical smog formation.

    In the light of the above statements, choose the correct answer from the options given below:

  5. Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R) :

    Assertion (A): Carbon monoxide (CO) is a serious asphyxiant even a short exposure may have fatal health issues.
    Reason (R): Hemoglobin present in the blood has a greater affinity towards carbon monoxide than oxygen.

    In the light of the above statements choose the most appropriate answer from the options given below :

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