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Question

According to the Central Pollution Control Board of India, particulate sizes of diameter ______ micrometres are responsible for causing the greatest harm to human health.

This question was previously asked in
SSC Selection Post 2021 Question Paper (09-Feb-2022) (Shift-1)
The correct answer is

equal to or less than 2.5

The correct answer is equal to or less than 2.5.

Exposure to high levels of $\text{PM}_{2.5}$ is particularly concerning in urban and industrial areas. These fine particles can originate from combustion processes (vehicles, power plants, burning biomass), industrial activities, and natural sources. Understanding the size fraction of particulate matter is essential for developing effective air pollution control strategies and public health advisories. The focus on reducing $\text{PM}_{2.5}$ levels is a priority for environmental agencies due to its severe health implications.

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Important Questions from Pollution

  1. Which of the following isnota common component of photo-chemical smog?

  2. Which of the following is NOT the main objective of Ganga action plan?

  3. Which of the following pollutants causes water pollution ?

  4. Presence of which pathogenic microbe in water is indication of contamination?

  5. Which of the following is NOT a water pollutant?

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