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In a survey recently conducted by the CGWA (Central Ground Water Authority) and CPCB (Central Pollution Control Board), the groundwater samples in one-fourth of the neighborhood tested in New Delhi were unfit for drinking. They contained high levels of two minerals that are not eliminated by ordinary water filters and are extremely harmful at high concentrations.
  • a)
    Mercury and zinc
  • b)
    Fluoride and arsenic
  • c)
    Nitrate and fluoride
  • d)
    Arsenic and lead
Correct answer is option 'A'. Can you explain this answer?
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In a survey recently conducted by the CGWA (Central Ground Water Auth...
Groundwater Contamination in New Delhi:

In a survey conducted by the Central Ground Water Authority (CGWA) and the Central Pollution Control Board (CPCB), it was found that one-fourth of the neighborhood in New Delhi had groundwater samples that were unfit for drinking. The samples contained high levels of two minerals that are not eliminated by ordinary water filters and are extremely harmful at high concentrations.

Identifying the Contaminants:

The correct answer to the question is option 'A', which includes the minerals mercury and zinc. These two minerals are known to be toxic and can have severe health effects when present in high concentrations in drinking water. Let us understand why the other options are incorrect:

- Option 'B' includes fluoride and arsenic. While both fluoride and arsenic can be found in groundwater and have potential health risks, they are not the contaminants mentioned in the survey.

- Option 'C' includes nitrate and fluoride. While both nitrate and fluoride can also be found in groundwater, they are not the contaminants mentioned in the survey.

- Option 'D' includes arsenic and lead. While both arsenic and lead can be present in groundwater and have detrimental health effects, they are not the contaminants mentioned in the survey.

Health Risks of Mercury and Zinc:

Mercury and zinc are toxic minerals that can have severe health implications when consumed in high concentrations. Let us explore the health risks associated with these contaminants:

- Mercury: High levels of mercury in drinking water can lead to various health issues, including damage to the nervous system, kidney damage, and developmental problems in children. It can also bioaccumulate in the food chain, posing additional risks.

- Zinc: While zinc is an essential mineral for the body, excessive intake of zinc through drinking water can have adverse effects. It can cause gastrointestinal problems, such as stomach cramps, nausea, and vomiting. Prolonged exposure to high levels of zinc can also lead to copper deficiency and weaken the immune system.

Conclusion:

In conclusion, the survey conducted by the CGWA and CPCB revealed that one-fourth of the neighborhood in New Delhi had groundwater samples unfit for drinking due to high levels of mercury and zinc. These minerals are not eliminated by ordinary water filters and can have severe health implications when consumed in high concentrations. It is crucial to address and mitigate groundwater contamination to ensure access to safe and clean drinking water for the residents of New Delhi.
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In a survey recently conducted by the CGWA (Central Ground Water Authority) and CPCB (Central Pollution Control Board), the groundwater samples in one-fourth of the neighborhood tested in New Delhi were unfit for drinking. They contained high levels of two minerals that are not eliminated by ordinary water filters and are extremely harmful at high concentrations.a) Mercury and zincb) Fluoride and arsenicc) Nitrate and fluorided) Arsenic and leadCorrect answer is option 'A'. Can you explain this answer?
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In a survey recently conducted by the CGWA (Central Ground Water Authority) and CPCB (Central Pollution Control Board), the groundwater samples in one-fourth of the neighborhood tested in New Delhi were unfit for drinking. They contained high levels of two minerals that are not eliminated by ordinary water filters and are extremely harmful at high concentrations.a) Mercury and zincb) Fluoride and arsenicc) Nitrate and fluorided) Arsenic and leadCorrect answer is option 'A'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about In a survey recently conducted by the CGWA (Central Ground Water Authority) and CPCB (Central Pollution Control Board), the groundwater samples in one-fourth of the neighborhood tested in New Delhi were unfit for drinking. They contained high levels of two minerals that are not eliminated by ordinary water filters and are extremely harmful at high concentrations.a) Mercury and zincb) Fluoride and arsenicc) Nitrate and fluorided) Arsenic and leadCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a survey recently conducted by the CGWA (Central Ground Water Authority) and CPCB (Central Pollution Control Board), the groundwater samples in one-fourth of the neighborhood tested in New Delhi were unfit for drinking. They contained high levels of two minerals that are not eliminated by ordinary water filters and are extremely harmful at high concentrations.a) Mercury and zincb) Fluoride and arsenicc) Nitrate and fluorided) Arsenic and leadCorrect answer is option 'A'. Can you explain this answer?.
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