Mumbai Air Quality Deteriorates After Diwali Firecrackers, AQI Crosses 400 in Several Areas

Air pollution levels in Mumbai witnessed a sharp overnight increase following Diwali celebrations, with several parts of the city recording an Air Quality Index (AQI) above 400 as firecracker emissions worsened the pollution situation. Navy Nagar, Chembur, Sewri, Ghatkopar and other neighbourhoods were among the worst-affected locations. The pollution spike came despite the city recording relatively better air quality on Sunday afternoon. Mumbai's overall AQI stood at around 132 on November 8, placing it in the moderate category. However, pollution levels increased significantly as firecracker celebrations continued late into the night.

According to monitoring data, Navy Nagar recorded an AQI peak of 497 at around 2 am on Monday, making it one of the most polluted locations in the city. The reading subsequently declined to 274 by 7 am. Chembur also witnessed a significant rise, with its AQI reaching approximately 401 during the night before dropping to 216 in the morning. Sewri recorded an overnight peak of 452, while Shivaji Nagar registered 444. Ghatkopar and Chakala also reported readings of 421 and 408, respectively.

Despite the sharp deterioration at individual monitoring stations, Mumbai's overall AQI was recorded at approximately 171 on Monday morning, remaining within the moderate category. The difference between the citywide average and readings at individual locations highlighted the uneven distribution of pollution across neighbourhoods. Firecracker emissions were identified as a major contributor to the sudden deterioration. Bursting fireworks releases fine particulate matter, including PM2.5 and PM10, along with other harmful pollutants that can remain suspended in the air.

The increase in pollution raised concerns over respiratory health, particularly among children, elderly residents and people suffering from asthma and other breathing-related conditions. The Brihanmumbai Municipal Corporation (BMC) deployed mist-spraying and water-sprinkling vehicles across all 26 municipal wards to help control airborne dust and particulate pollution. The civic body carried out overnight operations in several locations, including Worli, Malad, Andheri and Ghatkopar.

Officials have been using these measures as part of the city's efforts to manage pollution levels. However, experts have repeatedly highlighted the need for sustained action to address major pollution sources, including vehicle emissions, construction activities and industrial pollutants. Residents have been advised to limit strenuous outdoor activities while pollution levels remain high, particularly in areas recording severe AQI readings. People with existing respiratory conditions have also been urged to follow health advisories and take appropriate precautions.

The latest pollution episode has once again drawn attention to the environmental consequences of firecracker use during major festivals. While Mumbai experienced comparatively better air quality before the celebrations intensified, the overnight readings demonstrated how quickly pollution levels can rise. The incident has renewed calls for greater public awareness, responsible celebrations and stronger pollution-control measures to protect air quality across the city.

Disclaimer: This image is taken from Hindustan Times.