Silvassa Air Quality Index (AQI) & Air Pollution Today

Dadra & Nagar Haveli and Daman & Diu, India — Real-time Air Quality Index (AQI) and PM2.5

Silvassa AQI Right Now

153

Category: Moderate

Dominant Pollutant: pm25

PM2.5: 75.84 µg/m³

PM10: 123.11 µg/m³

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

Silvassa Pollutant Levels

PollutantConcentration
PM2.575.84 µg/m³
PM10123.11 µg/m³
O₃ (Ozone)9.04 µg/m³
NO₂16.26 µg/m³
SO₂6.91 µg/m³
CO639.99 µg/m³

Health Advisory — Silvassa

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

Recommendation: Sensitive groups (children, elderly, people with respiratory conditions) should limit outdoor exposure.

Health Impact — Silvassa

Cigarette Equivalent: Breathing this air is equivalent to smoking 3.4 cigarettes per day (based on current PM2.5 levels).

Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.43 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).

Health Recommendations for Silvassa

  • 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 Silvassa Air Quality

Silvassa, the capital of the Union Territory of Dadra & Nagar Haveli and Daman & Diu, is a small but rapidly industrialised town on the banks of the Daman Ganga River. Located in a hilly, forested landscape between Mumbai (170 km south) and Surat (150 km north), Silvassa has transformed from a quiet tribal settlement into a manufacturing powerhouse. The UT's favourable tax policies have attracted thousands of small and medium industrial units - plastics, pharmaceuticals, textiles, electronics, and engineering - making Silvassa's pollution profile more industrial than its small population would suggest.

The winter months from November through February represent Silvassa's pollution peak. Temperature inversions common during calm winter nights trap industrial emissions and vehicle exhaust near the ground, particularly in the industrial estate areas of Masat and Kilvani. Heavy truck traffic along the Mumbai–Ahmedabad corridor (NH48) and industrial feeder roads generates significant diesel exhaust and road dust. The manufacturing units, while individually small, collectively produce a substantial emission load from boilers, furnaces, and chimney stacks. Construction dust from ongoing industrial park expansion and residential development for the migrant worker population adds to winter particulate levels. On calm winter mornings, AQI can reach the Poor category in industrial zones.

The monsoon (June–September) brings heavy rainfall exceeding 2,500 mm to Silvassa's hilly terrain, dramatically cleaning the atmosphere and bringing months of Good air quality. The surrounding Sahyadri forests, which still cover significant areas of the UT, help filter air and maintain ecological balance. Post-monsoon months see rapid air quality improvement. Silvassa's long-term air quality trajectory depends on industrial emission controls - as the UT continues to attract manufacturing investment, the balance between economic development and environmental quality becomes increasingly critical.

Primary Pollution Sources

  • Industrial emissions (manufacturing hub)
  • Vehicle exhaust (heavy truck traffic)
  • Construction dust
  • Road dust
  • Waste burning

Geography: Capital of the merged UT of Dadra & Nagar Haveli and Daman & Diu; inland industrial town on the Daman Ganga River surrounded by forested hills, located between Mumbai and Surat on the NH48 corridor

Peak pollution months: November, December, January, February

Frequently Asked Questions — Silvassa

What is the air quality like in Silvassa?

Silvassa experiences moderate to poor air quality during winter months (November–February) due to its concentrated industrial activity and heavy truck traffic. AQI can reach the Moderate to Poor range in industrial zones during calm winter mornings. During the monsoon season (June–September), heavy rainfall cleans the atmosphere and air quality improves to Good levels.

What causes air pollution in Silvassa?

Silvassa's pollution primarily comes from thousands of small and medium industrial units (plastics, pharmaceuticals, engineering) in manufacturing estates, heavy truck traffic on the NH48 and feeder roads, construction dust from ongoing industrial expansion, and road dust. The UT's favourable tax policies have made it a dense manufacturing hub, giving it a disproportionately industrial pollution profile for its size.

Air Quality in Nearby Cities