Question
Download Solution PDFDDT belongs to the category of ______________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
Persistent pollutants:
- Resistant to natural breakdown.
- It can linger for years or decades.
- Examples: Dioxins, Furans, Polychlorinated biphenyls (PCBs), Mercury,DDT (Dichlorodiphenyltrichloroethane), etc.
Additional Information
Non-persistent pollutants:
- Break down quickly in the atmosphere (days or weeks).
- Examples: Carbon monoxide (CO), Sulfur dioxide (SO2), Nitrogen oxides (NOx), Ozone (O3), etc.
Primary air pollutants:
- Directly emitted from sources like fossil fuel combustion, industrial processes, and motor vehicles.
- Examples: Particulate matter (PM), Sulfur dioxide (SO2), Nitrogen oxides (NOx), Carbon monoxide (CO), Volatile organic compounds (VOCs)
Secondary air pollutants:
- Formed through chemical reactions in the atmosphere involving other pollutants.
- Examples: Ground-level ozone (O3), Peroxyacyl nitrates (PANs), Nitric acid (HNO3), Sulfuric acid (H2SO4).
Last updated on May 28, 2025
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