{
  "id": 16493536,
  "title": "Mumbai Air Pollution: Awaaz Foundation Flags Zero PM2.5 Readings At Construction Sites, Demands Audit Of Air Quality Monitors",
  "url": "https://urgent.news/2026/10/25/mumbai-air-pollution-awaaz-foundation-flags-zero-pm2-5-readings-at",
  "topic": "world",
  "section": "World",
  "published": "2026-10-25T15:55:04.000Z",
  "source": {
    "name": "Free Press Journal",
    "slug": "free-press-journal",
    "url": "https://www.freepressjournal.in/mumbai/mumbai-air-pollution-awaaz-foundation-flags-zero-pm25-readings-at-construction-sites-demands-audit-of-air-quality-monitors"
  },
  "original_language": "en",
  "account": "Mumbai is shrouded in haze, prompting the Awaaz Foundation to raise concerns over the accuracy of air-quality displays at construction sites. Following a study conducted in Bandra and Khar, the foundation flagged several instances of zero or very low readings of particulate matter (PM) 2.5 and PM10. This led to a letter being sent to the Chief Minister and Municipal Commissioner, questioning the reliability of these monitors.\n\nOver 38 days from March to October 2026, the foundation photographed air-quality displays 230 times. For 26 days, they compared readings from construction-site monitors with those of government stations at Kherwadi and BKC in the SAMEER app. However, the comparison did not reveal a direct discrepancy between the monitors and government stations for PM2.5, as corresponding readings for this particulate measure were not provided.\n\nNotable instances of zero readings were observed at a site off Nargis Dutt Road in Pali Hill, with PM2.5 at zero on April 13 and 24, and both PM2.5 and PM10 readings at zero on April 24. On several days, monitors showed readings below 10 µg/m³ for PM2.5, which is well below the World Health Organization's recommended 24-hour guideline of 15 µg/m³.\n\nThe foundation also noted that displays were occasionally switched off or unreadable, with one monitor being inactive for three days consecutively. Despite these issues, the Brihanmumbai Municipal Corporation (BMC) has agreed to integrate monitor readings into its official air-quality findings, provided the monitors are calibrated. The foundation calls for daily deployment of air-quality monitoring vans and an audit of every construction-site monitor to ensure real-time, time-stamped PM2.5 data is published online.",
  "summary": "Mumbai: Even as a layer of haze envelops Mumbai, a study by anti-pollution campaign group Awaaz Foundation has raised concerns over the reliability of air-quality displays at construction sites, warning that faulty or misleading readings could give residents a false sense of security. Foundation Flags Suspicious Readings In a letter to Chief Minister Devendra Fadnavis and Municipal Commissioner…",
  "key_points": [
    "Awaaz Foundation raises concerns over zero PM2.5 readings at Mumbai construction sites.",
    "Foundation conducts 38-day study, compares 230 monitor readings with government stations.",
    "BMC agrees to integrate monitor readings into official air-quality findings after calibration."
  ],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}