RankSheet
UPSC 2022 • Q44Environment, Ecology & Climate ChangeDifficult
Environmental Pollution, Waste Remediation & Forever Chemicals
In the context of WHO Air Quality Guidelines, consider the following statements: 1. The 24-hour mean of PM2.5 should not exceed 15 μg/m³ and annual mean of PM2.5 should not exceed 5 µg/m³. 2. In a year, the highest levels of ozone pollution occur during the periods of inclement weather. 3. PM10 can penetrate the lung barrier and enter the bloodstream. 4. Excessive ozone in the air can trigger asthma. Which of the statements given above are correct?
Practise this topic →
Asked 31 times in 2017–2026Practise 10 more questions on Environmental Pollution, Waste Remediation & Forever Chemicals, free.
Practise this topic →
Previous (Q43)
"If rainforests and tropical forests are the …
Next (Q45)
With reference to "Gucchi" sometimes mentione…

More Official Questions on Environmental Pollution, Waste Remediation & Forever Chemicals

All Environment, Ecology & Climate Change→

Consider the following: 1. Carbon dioxide 2. Oxides of Nitrogen 3. Oxides of Sulphur. Which of the above is/are the emission/emissions from coal combustion at thermal power plants?

UPSC 2011•Q2•Easy
View →

There is a concern over the increase in harmful algal blooms in the seawaters of India. What could be the causative factors for this phenomenon? 1. Discharge of nutrients from the estuaries. 2. Run-off from the land during the monsoon. 3. Upwelling in the seas.

UPSC 2011•Q47•Medium
View →

Recently, "oilzapper" was in the news. What is it?

UPSC 2011•Q65•Medium
View →

Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning?

UPSC 2012•Q15•Medium
View →

Want to practice questions on Environmental Pollution, Waste Remediation & Forever Chemicals?

Test your conceptual grasp with instant topic-wise micro-drills from RankSheet's 65,000+ curated question bank.

Launch Topic Practice Drill