AQI on rise, could touch 'poor' soon

After staying in the "moderate" category for nearly a fortnight, Delhi's air quality is likely to deteriorate to the "poor" category by the weekend, and trigger Stage 1 of the Graded Response Action Plan (Grap), officials said.

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Measures under the revised Grap, which is implemented every year in phases from October 1, did not come into effect in the National Capital Region (NCR) yet, as Delhi's air quality index (AQI) remained below the threshold of 201. Stage 1 comprises 27 measures, including shutting down construction and demolition sites over 500sqms but are not registered with the government on its "web portal" for dust management and periodic mechanised sweeping and water sprinkling on roads.