Ulhasnagar Air Quality Index (AQI) & Air Pollution Today

Maharashtra, India — Real-time Air Quality Index (AQI) and PM2.5

Ulhasnagar AQI Right Now

104

Category: Moderate

Dominant Pollutant: pm10

PM2.5: 41.85 µg/m³

PM10: 105.05 µg/m³

Last updated: 2026-03-24 — Data source: Google Air Quality API (NAQI). Live NAQI values load when you visit the page.

Ulhasnagar Pollutant Levels

PollutantConcentration
PM2.541.85 µg/m³
PM10105.05 µg/m³
O₃ (Ozone)13.87 µg/m³
NO₂21.29 µg/m³
SO₂13.44 µg/m³
CO271.97 µg/m³

Health Advisory — Ulhasnagar

Moderate: Breathing discomfort to people with lungs, asthma and heart diseases.

Health Impact — Ulhasnagar

Cigarette Equivalent: Breathing this air is equivalent to smoking 1.9 cigarettes per day (based on current PM2.5 levels).

Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.21 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).

Health Recommendations for Ulhasnagar

  • General Population: People with respiratory or heart conditions should limit prolonged outdoor exertion.
  • Elderly: Reduce prolonged outdoor activities.
  • Children: Reduce prolonged outdoor play.
  • Lung Disease Patients: Avoid prolonged outdoor exertion.

Understanding Ulhasnagar Air Quality

Ulhasnagar, located in the Thane district of the Mumbai Metropolitan Region, is one of India's most densely populated cities - a post-Partition settlement that transformed from a Sindhi refugee camp in 1947 into a teeming commercial hub known across India for its garment manufacturing and wholesale textile markets. The city's origin as an unplanned settlement means buildings are packed tightly with minimal ventilation corridors, creating street-level pollution traps where vehicle exhaust and industrial emissions accumulate. The Ulhas River flows along the city's eastern edge, contributing humidity that enhances particulate haze.

Winter months (November–February) see the poorest air quality as the post-monsoon dry season reduces natural particulate washout and calm winds allow emissions to build up. Thousands of small textile processing, dyeing, and garment stitching units operate in mixed-use residential-commercial buildings, generating fabric dust, chemical fumes from dyes and solvents, and heat emissions from pressing operations. The city's famous wholesale markets for jeans, shirts, and footwear draw daily commercial traffic from across Maharashtra, creating intense vehicular congestion on narrow roads never designed for modern traffic volumes.

Waste burning is prevalent due to the gap between waste generation (significant from garment manufacturing offcuts and packaging) and municipal collection capacity. Small-scale manufacturing of electronics, plastics, and metal goods in informal workshops adds to the emission mix. Despite being part of the Mumbai Metropolitan Region, Ulhasnagar lacks the coastal ventilation benefit that Mumbai proper enjoys, and its inland position surrounded by Kalyan and Ambernath means urban heat island effects and pollution from neighbouring industrial areas compound local sources. Monsoon months (June–September) bring heavy rainfall that dramatically improves air quality to Satisfactory levels.

Primary Pollution Sources

  • Vehicle exhaust
  • Textile and garment industry emissions
  • Road dust
  • Waste burning
  • Construction dust
  • Small-scale manufacturing

Geography: Mumbai Metropolitan Region satellite city; extremely dense commercial-residential mix, garment manufacturing hub, flat terrain near Ulhas River

Peak pollution months: November, December, January, February

Frequently Asked Questions — Ulhasnagar

Why is Ulhasnagar so densely polluted despite being near Mumbai?

Ulhasnagar lacks Mumbai's coastal ventilation and sea breezes. Its origin as an unplanned refugee settlement means extremely dense construction with no ventilation corridors, narrow streets that trap vehicle exhaust, and mixed-use buildings where garment factories operate alongside residences. Thousands of small textile and manufacturing units generate emissions in a confined area, while inadequate waste management leads to prevalent open burning.

How does the garment industry affect Ulhasnagar's air quality?

Ulhasnagar is one of India's largest garment manufacturing hubs with thousands of small-scale units producing textiles, jeans, and apparel. These units generate fabric dust from cutting and stitching, chemical emissions from dyeing and printing processes, heat from pressing operations, and significant waste (fabric offcuts, packaging) that often ends up being burned. The concentrated nature of these operations in a densely packed city creates persistent localised air quality issues.

Air Quality in Nearby Cities