WHO Global Air Quality Guidelines 2021
International Day of Clean Air For Blue Skies
Country’s First Smog Tower in Delhi
Severity | Pollution level | Actions |
Severe+ or Emergency | PM 2.5 over 300 µg/cubic metre or PM10 over 500 µg/cu. m. for 48+ hours | · Stop entry of trucks into Delhi · Stop construction work · Introduce odd/even scheme for private vehicles. · Task Force to decide any additional steps including shutting of schools.
|
Severe.
| PM 2.5 over 250 µg/cu. m. or PM10 over 430 µg/cu. m. | · Close brick kilns, hot mix plants, stone crushers. · Maximise power generation from natural gas. · Encourage public transport, with differential rates. · More frequent mechanised cleaning of road and sprinkling of water. |
Very Poor | PM2.5 121-250 µg/cu. m. or PM10 351-430 µg/cu. m. | · Stop use of diesel generator sets · Enhance parking fee by 3-4 times · Increase bus and Metro services. · Apartment owners to discourage burning fires in winter. · Advisories to people with respiratory and cardiac conditions to restrict outdoor movement. |
Moderate to poor | PM2.5 61-120 µg/cu. m. or PM10 101-350 µg/cu. m. | · Heavy fines for garbage burning. · Close/enforce pollution control regulations in brick kilns and industries. · Mechanised sweeping on roads with heavy traffic and water sprinkling. · Strictly enforce ban on firecrackers. |
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