India's air quality framework hasn't been comprehensively revised since 2009 and needs an update, say experts.

If you live in regions like North India or cities like Delhi, what dominates concerns for every individual and family November onwards is the worsening AQI. Air Quality Index (AQI) numbers dominate ...

The U.S. Air Quality Index (AQI) is the Environmental Protection Agency’s tool for reporting outdoor air quality and health. The AQI includes six color-coded categories, each corresponding to a range ...

Delhi is enveloped in toxic smog, with the AQI at 341 in the "very poor" category. GRAP-III is in effect, but GRAP-IV, ...

The toxic air in the United States this week has flirted with the upper range of the 500-point scale. In the past decade, there have been times when the air quality was even worse. By Jenny Gross New ...

Visuals around Anand Vihar on Tuesday morning showed a layer of toxic smog lingering in the air. The Central Pollution ...

The Commission for Air Quality Management announced on Tuesday that it would invoke the third stage of GRAP after the city's ...

The Graded Response Action Plan (GRAP) is a set of emergency measures implemented in Delhi-NCR to combat rising air pollution ...

A thick layer of smog has enveloped India’s capital, New Delhi, as pollution levels surge, worsening a public health crisis ...