After directions from the NGT, the regional directorate carried out a survey of the N-Choe drain to assess the water quality from point of origin to the point it merges into the Ghaggar River on January 29 and 31
Mumbai's overall AQI is at 194 (moderate) with several areas reporting poor or very poor air quality. Calm winds are contributing to the decline in air quality. The Bombay High Court has taken note of the issue and the BMC has implemented measures to mitigate air pollution.