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CPCB explains why its official AQI is capped at 500 while private apps show higher readings
ಸುದ್ದಿಯಲ್ಲಿ ಏಕೆ?
AQI stops at 500, yet apps show more: the CPCB methodology and Very Poor band Prelims tests
CPCB says AQI differences with private apps stem from methodology.
Why it matters: GS-3 core
What you need to know
2 ನಿಮಿಷ
The Central Pollution Control Board has explained that differences between its Air Quality Index and private apps arise from methodology, not under-reporting of data.
India's National AQI tops out at 500, with 301-400 rated 'Very Poor' and 401-500 'Severe'.
Delhi's AQI around the Deepavali period was about 370, in the 'Very Poor' band.
ಮೂಲಗಳು: Topper IAS editorial (PIB / The Hindu / Indian Express)
ಮುಖ್ಯ ಅಂಶಗಳು
Remember these
- India's National AQI is capped at 500; CPCB says gaps with private apps stem from methodology, not under-reporting.
- AQI bands: 0-50 Good, 51-100 Satisfactory, 101-200 Moderate, 201-300 Poor, 301-400 Very Poor, 401-500 Severe.
- Delhi's AQI around the Deepavali period was about 370, in the 'Very Poor' band.
- The National AQI was launched in 2014 and is computed by the Central Pollution Control Board (CPCB).
- The index has six categories, from 'Good' to 'Severe'.
ಪ್ರಿಲಿಮ್ಸ್ · ಮೇನ್ಸ್
How the exam will ask it
ಪ್ರಿಲಿಮ್ಸ್
- India's National AQI classifies air quality into six categories, from Good to Severe.
- An AQI reading of 301-400 is rated 'Very Poor' and 401-500 'Severe'.
- The CPCB, a statutory body under the Water (Prevention and Control of Pollution) Act, 1974, publishes the National AQI.
- Private air-quality apps may show readings above 500 because they use different methodologies than the official AQI.
ಮೇನ್ಸ್
GS Paper 3 (Environment): Differing AQI readings erode public trust in official data. The National AQI framework of CPCB, with its capped 500 scale and fixed pollutant-based methodology, differs from private apps' methods. The way forward is transparent methodology, denser monitoring networks, and communicating health advisories alongside the index.
Quick recall
Answer before you reveal
ಭಾರತದ ರಾಷ್ಟ್ರೀಯ ವಾಯು ಗುಣಮಟ್ಟ ಸೂಚ್ಯಂಕ (AQI) ಕುರಿತು ಈ ಹೇಳಿಕೆಗಳನ್ನು ಪರಿಗಣಿಸಿ:
- 370 ರ ಮಟ್ಟವು 'ಅತಿ ಕಳಪೆ' ವರ್ಗಕ್ಕೆ ಸೇರುತ್ತದೆ.
- ಈ ಸೂಚ್ಯಂಕವು ವಾಯು ಗುಣಮಟ್ಟವನ್ನು 'ಉತ್ತಮ'ದಿಂದ 'ತೀವ್ರ'ದವರೆಗೆ ಆರು ವರ್ಗಗಳಾಗಿ ವಿಂಗಡಿಸುತ್ತದೆ. ಮೇಲಿನ ಯಾವ ಹೇಳಿಕೆ/ಹೇಳಿಕೆಗಳು ಸರಿಯಾಗಿವೆ?
- 1 ಮಾತ್ರ
- 2 ಮಾತ್ರ
- 1 ಮತ್ತು 2 ಎರಡೂ
- 1 ಅಥವಾ 2 ಯಾವುದೂ ಅಲ್ಲ
ಉತ್ತರ ನೋಡಿ
ಉತ್ತರ: C — ಸರಿಯಾದ ಉತ್ತರ: 1 ಮತ್ತು 2 ಎರಡೂ. 301-400 ಮಟ್ಟ 'ಅತಿ ಕಳಪೆ'; ಆರು ವರ್ಗಗಳು: ಉತ್ತಮ, ತೃಪ್ತಿಕರ, ಮಧ್ಯಮ, ಕಳಪೆ, ಅತಿ ಕಳಪೆ ಮತ್ತು ತೀವ್ರ.
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