Noida has witnessed 171 violation of GRAP provisions since October 1 as the Delhi-NCR battles a sharp slump in air quality triggered by increased pollution during winter months.
According to the System of Air Quality and Weather Forecasting and Research, New Delhi, the nation's capital, has "very poor" air quality, with an overall AQI of 303. (SAFAR). The index reading on Friday morning was just a little under 300.