What BOD level makes CPCB class a river stretch as polluted?

Above 3 mg/L. CPCB calls a stretch polluted when its BOD is above 3 mg/L. Class V covers 3 to 6 mg/L. Class I is the worst, with BOD above 30 mg/L. Read more: River Pollution and Industrial Effluents in India

After the Water (Amendment) Act, 2024, what penalty applies to contravening Section 24 on stream pollution?

Rs 10,000 to Rs 15 lakh, plus Rs 10,000 a day while it continues. The 2024 amendment replaced jail with a money penalty for Section 24. The range is Rs 10,000 to Rs 15 lakh, plus Rs 10,000 for each day it continues. An adjudicating officer decides it. Read more: River Pollution and Industrial Effluents in India

CPCB's March 2015 directions asked five Ganga-basin State Boards for Zero Liquid Discharge plans. Which of these is NOT one of the sectors named?

Cement. The five sectors were pulp and paper, distilleries, sugar, tanneries and textiles. Cement was not among them. Read more: River Pollution and Industrial Effluents in India

Consider the following statements: 1. Section 25 of the Water Act, 1974 requires prior State Board consent for new industries likely to discharge effluent. 2. Failing to follow Section 25 or 26 can still bring imprisonment. 3. After 2024, breaching Section 24 is punished with imprisonment. How many of the statements given above are correct?

Only two. Statements 1 and 2 are correct. Section 25 needs prior consent, and failing Section 25 or 26 can mean 1 year 6 months to 6 years in jail. Statement 3 is wrong: Section 24 now draws a money penalty. Read more: River Pollution and Industrial Effluents in India

Consider the following statements about CPCB’s 2025 report on polluted river stretches: 1. It lists 296 polluted stretches or locations on 271 rivers. 2. Priority Class I stretches have BOD above 30 mg/L. Which of the statements given above is/are correct?

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Consider the following statements about CPCB’s 2025 report on polluted river stretches: 1. It lists 296 polluted stretches or locations on 271 rivers. 2. Priority Class I stretches have BOD above 30 mg/L. Which of the statements given above is/are correct?

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