Porur Air Quality Index (AQI) & Air Pollution Today
Tamil Nadu, India — Real-time Air Quality Index (AQI) and PM2.5
Porur AQI Right Now
Category: Satisfactory
Dominant Pollutant: pm10
PM2.5: 31.9 µg/m³
PM10: 65.31 µg/m³
Last updated: 2026-03-24 — Data source: Google Air Quality API (NAQI). Live NAQI values load when you visit the page.
Porur Pollutant Levels
| Pollutant | Concentration |
|---|---|
| PM2.5 | 31.9 µg/m³ |
| PM10 | 65.31 µg/m³ |
| O₃ (Ozone) | 7.21 µg/m³ |
| NO₂ | 6.85 µg/m³ |
| SO₂ | 1.1 µg/m³ |
| CO | 225.98 µg/m³ |
Health Advisory — Porur
Satisfactory: Minor breathing discomfort to sensitive people.
Health Impact — Porur
Cigarette Equivalent: Breathing this air is equivalent to smoking 1.5 cigarettes per day (based on current PM2.5 levels).
Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.14 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).
Health Recommendations for Porur
- General Population: Acceptable air quality. Unusually sensitive people should limit prolonged outdoor exertion.
- Elderly: Minor breathing discomfort is possible.
- Children: Should be fine outdoors with normal activities.
- Lung Disease Patients: Consider reducing prolonged outdoor exertion.
Understanding Porur Air Quality
Porur sits at a critical junction where multiple arterial roads converge, making vehicle emissions the dominant air quality concern. Peak pollution occurs during winter months (November-February) when morning and evening rush hours create severe congestion and PM2.5 spikes as thousands of IT sector commuters pass through to reach campuses along the Poonamallee-Kanchipuram corridor. Temperature inversions during these cooler months trap exhaust emissions near ground level, creating unhealthy air quality conditions that persist for hours.
Rapid urbanization and construction of residential complexes, commercial buildings, and IT infrastructure generate constant dust pollution. Construction equipment diesel emissions, demolition dust, and exposed soil contribute to elevated PM10 levels, particularly during dry months. The area's transformation from semi-rural to urban has not been accompanied by adequate green infrastructure, leaving limited vegetation to trap airborne particles.
Summer months (April-June) bring some relief as wind speeds increase, though photochemical ozone formation can be problematic during hot, sunny afternoons when vehicle emissions react in sunlight. Monsoon rains provide temporary cleansing, but post-rain periods see rapid dust resuspension. Real-time AQI monitoring is essential for Porur residents, particularly those with respiratory conditions, given the traffic-dominated pollution profile.
Primary Pollution Sources
- Heavy vehicle traffic on Mount-Poonamallee Road
- IT corridor vehicular emissions
- Construction dust from ongoing development
- Commercial generator emissions
- Road dust resuspension
Geography: Western Chennai suburb and gateway to the IT corridor, major junction on Mount-Poonamallee Road with rapid urbanization and commercial development
Peak pollution months: November, December, January, February
Frequently Asked Questions — Porur
Why does Porur experience such heavy traffic pollution?
Porur is a major junction connecting Chennai's IT corridor to the city center. During morning and evening commutes, thousands of vehicles create severe congestion, leading to high PM2.5, NOₓ, and CO levels. The concentration of tech campuses westward makes this a daily pattern.
How can Porur residents reduce their exposure to traffic pollution?
Avoid main roads like Mount-Poonamallee Road during rush hours (7:30-10 AM, 5:30-8 PM). Use air purifiers in homes and offices, choose residential areas set back from major roads, and check real-time AQI before planning outdoor activities.
Air Quality in Nearby Cities
- Poonamallee AQI — Tamil Nadu
- Pallavaram AQI — Tamil Nadu
- Ambattur AQI — Tamil Nadu
- Avadi AQI — Tamil Nadu
- Chromepet AQI — Tamil Nadu
- Chennai AQI — Tamil Nadu