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The Brihanmumbai Municipal Corporation (BMC) reported that 662 of the 1,954 active construction sites in Mumbai have not installed sensor based air quality monitors, violating pollution control norms and High Court directions. The civic body has issued 409 showcause notices and 284 stop work notices for breaches including uncovered construction materials, missing fogging machines, tyre washing units, perimeter sheets, and lack of green cover. BMC is actively coordinating with project authorities to make the monitors operational and integrate them with the city's central dashboard, emphasizing the need for strict compliance during seasonal pollution peaks.
The Brihanmumbai Municipal Corporation (BMC) has informed the Bombay High Court that 662 construction sites in Mumbai have not installed the mandatory sensor based air quality monitors. Out of around 1,954 ongoing projects in the city, this represents a significant portion not fully compliant with pollution control regulations and court directives. The monitors are intended to provide real-time measurement of particulate pollution levels at construction sites.
In line with court instructions issued in late December, the BMC submitted an affidavit detailing the steps taken to enforce pollution control measures. The civic body has issued 409 showcause notices and 284 stop work notices to projects that failed to meet the 28 point mitigation guidelines. Violations include uncovered construction materials, absence or malfunctioning of fogging machines, missing tyre washing facilities, lack of perimeter metal sheets, inadequate green cover, and non-installation of air quality monitors.
The affidavit further stated that many sites either have monitors that are not yet operational, are not integrated with the central air quality dashboard, or are temporarily not transmitting data. BMC officials are coordinating with project authorities, vendors, and site managers to resolve connectivity, power, and commissioning issues. Sites that had not installed monitors by mid-January were issued stop-work notices. To strengthen enforcement, the civic body has deployed 94 ward-level teams across Mumbai.
According to BMC, between late December and mid-January, the city's Air Quality Index (AQI) remained largely in the moderate category. The affidavit highlighted seasonal trends, noting that particulate matter levels are typically higher in winter months and lower during the monsoon. Officials emphasized the importance of maintaining strict compliance to prevent spikes in pollution and protect public health.
The requirement for sensor-based monitors is part of BMC's pollution mitigation framework, which mandates real-time monitoring and public display of PM2.5 and PM10 levels at construction sites. Compliance is tied to regulatory enforcement, including stop-work orders for violations. The civic body continues to prioritize full integration of these monitors with the central dashboard to ensure accurate reporting and timely mitigation actions.
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