The capital's air quality index (AQI) has remained in the "severe" category for days, with PM2.5 concentrations surging past 400 mg/m3 -- far beyond the World Health Organization's (WHO) safe limit of ...
Amid worsening air quality in the national capital, Delhi Environment Minister Gopal Rai said that the meeting of senior officers of departments concerned at 12 noon for implementation of GRAP IV was ...
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