GRAP IV Measures Take Effect At the End Of Day 2

In an exclusive interview with NDTV, Arvind Nautiyal, Member-Secretary of the Commission for Air Quality Management, said the Air Quality Index or AQI -- which measures pollutants - that had been 500, has come down to 467.

Pollution levels in Delhi-NCR, which had crossed the 500-mark on Monday and stayed there, has started dropping, indicating that the stringent GRAP 4 measures have started taking effect. In an exclusive interview with NDTV, Arvind Nautiyal, Member-Secretary of the Commission for Air Quality Management, said the Air Quality Index or AQI -- which measures pollutants - that had been 500, has come down to 467.

"Today, the visibility has improved. There has been some change in the weather, but the pollution has reduced due to GRAP-IV," he told NDTV.

On Monday, the pollution level had suddenly spiked and the situation was not much better this morning, with the AQI staying at 500 in some parts. According to the System of Air Quality and Weather Forecasting and Research (SAFAR) data, Delhi's overall AQI was 494 at 6 am -- in the 'severe plus' category..