According to the Central Pollution Control Board (CPCB), particulate size of ________ micro-meters or less in diameter are responsible for causing the greatest harm to human health.
Show answer and explanation
Correct answer: 2.5
Particulate matter of size 2.5 micrometers or less ($PM_{2.5}$) can be inhaled deep into the lungs. These fine particles cause breathing and respiratory symptoms, irritation, inflammations, and premature death.
Practice all 20 Air Pollution: Causes, Effects and Control questions
Keep practicing
More Air Pollution: Causes, Effects and Control questions
- Catalytic converters, which are fitted into automobiles for reducing emission of poisonous gases, use which of the following expensive meta…
- Why is it advised to use unleaded petrol in vehicles fitted with catalytic converters?
- The Air (Prevention and Control of Pollution) Act was amended in 1987 to include which of the following as an air pollutant?
- Which of the following is a major physiological effect of noise pollution at levels of 150 dB or more?
- In the 1990s, Delhi ranked ________ among the 41 most polluted cities of the world.
- Following the Supreme Court's directive, the entire fleet of public transport (buses) in Delhi was switched from diesel to ________ by the…