Port Blair Air Quality Index (AQI) & Air Pollution Today
Andaman & Nicobar Islands, India — Real-time Air Quality Index (AQI) and PM2.5
Port Blair AQI Right Now
Category: Good
Dominant Pollutant: pm10
PM2.5: 19.36 µg/m³
PM10: 33.93 µg/m³
Last updated: 2026-03-24 — Data source: Google Air Quality API (NAQI). Live NAQI values load when you visit the page.
Port Blair Pollutant Levels
| Pollutant | Concentration |
|---|---|
| PM2.5 | 19.36 µg/m³ |
| PM10 | 33.93 µg/m³ |
| O₃ (Ozone) | 61.37 µg/m³ |
| NO₂ | 7.02 µg/m³ |
| SO₂ | 1.06 µg/m³ |
| CO | 184.42 µg/m³ |
Health Advisory — Port Blair
Good: Minimal impact on health. Great day to be outdoors!
Health Impact — Port Blair
Cigarette Equivalent: Breathing this air is equivalent to smoking 0.9 cigarettes per day (based on current PM2.5 levels).
Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.06 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).
Health Recommendations for Port Blair
- General Population: Air quality is satisfactory. Enjoy outdoor activities.
- Elderly: No special precautions needed.
- Children: Great day for outdoor play.
- Lung Disease Patients: No restrictions on outdoor activities.
Understanding Port Blair Air Quality
Port Blair, the capital of the Andaman & Nicobar Islands Union Territory, sits on the southeastern coast of South Andaman Island in the Bay of Bengal, approximately 1,200 kilometres from the Indian mainland. With a population of around 108,000, the city is the administrative and commercial hub of the archipelago. Surrounded by dense tropical rainforest and open ocean, Port Blair benefits from constant maritime winds and extremely heavy annual rainfall exceeding 3,000 mm, which together keep air quality consistently good throughout most of the year.
The relatively drier months from January through April represent Port Blair's marginal pollution peak, though AQI readings rarely venture beyond the Satisfactory category. During this period, reduced rainfall allows vehicle exhaust, marine vessel emissions from the busy harbour (which serves inter-island ferries, naval vessels, and fishing boats), and diesel generator fumes to accumulate briefly before sea breezes disperse them. The harbour area along Aberdeen Bazaar and Phoenix Bay can experience localised exhaust concentrations during peak ferry operations. Construction dust from ongoing infrastructure projects - including expanded tourism facilities and road widening - contributes seasonal particulate matter.
The monsoon dominates Port Blair's climate from May through December, with the southwest monsoon (May–September) and northeast monsoon (October–December) delivering near-continuous rainfall that scrubs the atmosphere thoroughly. During these months, AQI readings in the Good category are virtually guaranteed. Port Blair's primary air quality risks stem from growing vehicular traffic on narrow island roads and increased marine traffic from tourism expansion, but the city's oceanic setting and extraordinary rainfall provide natural advantages that few Indian cities can match.
Primary Pollution Sources
- Vehicle exhaust
- Marine vessel and ferry emissions
- Diesel generator exhaust
- Construction dust
- Waste burning
Geography: Capital of Andaman & Nicobar Islands UT, located on South Andaman Island in the Bay of Bengal; tropical maritime climate with dense rainforest cover and annual rainfall exceeding 3,000mm
Peak pollution months: January, February, March, April
Frequently Asked Questions — Port Blair
What is the air quality like in Port Blair?
Port Blair consistently enjoys good air quality owing to its isolated island location in the Bay of Bengal, dense tropical rainforest surroundings, and extremely heavy annual rainfall (~3,000 mm). AQI readings remain in the Good to Satisfactory range for the vast majority of the year. The city experiences no significant pollution events typical of mainland Indian cities.
What causes air pollution in Port Blair?
Port Blair's limited pollution sources include vehicle exhaust on narrow island roads, marine vessel and ferry emissions from the busy harbour, diesel generator exhaust for supplementary power, construction dust from infrastructure development, and small-scale waste burning. The city has no heavy industry, and constant sea breezes quickly disperse any locally generated pollutants.
Air Quality in Nearby Cities
- Srikakulam AQI — Andhra Pradesh
- Berhampur AQI — Odisha
- Bhubaneswar AQI — Odisha
- Visakhapatnam AQI — Andhra Pradesh
- Cuttack AQI — Odisha
- Kakinada AQI — Andhra Pradesh