Delhi, Air Quality Index

He ordered the implementation of GRAP Stage 4 if the Air Quality Index (AQI ... and construction waste as primary sources ...
The Supreme Court has ordered Delhi and NCR states to strictly enforce GRAP Stage IV as air pollution reaches 'severe plus' levels. Measures include ...
Supreme Court has ordered the continuation of GRAP-4 restrictions in Delhi-NCR due to alarming air pollution levels, ...
The Union Health Secretary has issued a new advisory urging states and UTs to enhance health systems and raise awareness on ...
Air quality in the National Capital Region has significantly worsened, with multiple air monitoring stations recording the ...