Which of the following is NOT a typical pollutant used in Air Quality Index (AQI) calculations?
Show answer & explanation
Correct answer: D
Explanation
Answer: (D) Noise
Explanation –
In India, the National Air Quality Index (AQI) is calculated primarily based on eight major air pollutants. These pollutants include Particulate Matter (PM10 and PM2.5), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), Carbon Monoxide (CO), Ozone (O3), Ammonia (NH3), and Lead (Pb).
'Noise' is categorized under sound pollution rather than air pollution. Therefore, it is not used to measure air quality. The objective of the AQI is to inform people about how clean or polluted the air is and what potential health effects it may have. It is classified into six categories: Good, Satisfactory, Moderately Polluted, Poor, Very Poor, and Severe.
Additional Points –
PM2.5: These are extremely fine particles capable of penetrating deep into the lungs.
CO (Carbon Monoxide): This is an odorless, colorless gas that reduces the blood's capacity to carry oxygen.
Potential Exam Questions and Answers –
Question: Where is the headquarters of the Central Pollution Control Board (CPCB) located?
Answer: New Delhi.
Question: What is the 'SAFAR' system associated with?
Answer: Monitoring of air quality and weather forecasting.