Which Indian city had the cleanest air (lowest AQI) as per CPCB data in early 2025?
Show answer & explanation
Correct answer: B
Explanation
Solution: The correct answer is Tirunelveli.
Explanation:
☛ According to Central Pollution Control Board (CPCB) data in early 2025, Tirunelveli in Tamil Nadu recorded the cleanest air with the lowest Air Quality Index (AQI) among Indian cities.
☛ Tirunelveli registered an AQI well within the 'Good' category (0–50), which is considered safe with minimal health risk.
☛ Favorable coastal meteorological patterns, better wind dispersion, and relatively lower industrial emissions helped Tirunelveli maintain superior air quality compared to northern plains cities.
Extra Exam-Relevant Facts:
☛ Delhi & Ghaziabad: Cities in the National Capital Region (NCR) frequently experience 'Very Poor' to 'Severe' air quality (AQI above 300–400) during winter months due to thermal inversion, stubble burning, and vehicular emissions.
☛ The National Air Quality Index (AQI) was officially launched in India in September 2014 under the Swachh Bharat Abhiyan.
☛ The CPCB classifies AQI into six categories: Good (0–50), Satisfactory (51–100), Moderate (101–200), Poor (201–300), Very Poor (301–400), and Severe (401–500).
☛ The Central Pollution Control Board (CPCB) is a statutory body constituted in September 1974 under the Water (Prevention and Control of Pollution) Act, 1974.
Important One-Liners for Upcoming Exams:
☛ Under which Ministry does the Central Pollution Control Board (CPCB) function? → Ministry of Environment, Forest and Climate Change (MoEFCC)
☛ In which year was the Air (Prevention and Control of Pollution) Act enacted in India? → 1981
☛ How many pollutants are measured to calculate the National Air Quality Index (AQI)? → 8 pollutants (PM10, PM2.5, NO2, SO2, CO, O3, NH3, and Pb)
☛ What AQI range is defined as 'Good' in India? → 0 to 50
☛ Where is the headquarters of the Central Pollution Control Board (CPCB) located? → New Delhi