CPCB

Thiruvallur Air Quality Index & Realtime Air Pollution

Lat: 13.2500 · Lon: 80.0000
Elevation: m · Offset: 19800s
AQI Score & Core Metrics
63
Moderate(US-AQI standard)
050100150200300500
Good (0-50)Moderate (51-100)Poor (101-150)Unhealthy (151-200)Severe (201-300)Hazardous (301+)
PM2.520.6 µg/m³
PM1024.2 µg/m³
Weather & Climate Summary

Current Conditions

30°C

Humidity: 63%

UV Index1
Wind Speed10.2 km/h

Primary Air Pollutants Thiruvallur (Tamil Nadu)

PollutantConcentrationDetails
PM2.521 µg/m³Fine particles
PM1024 µg/m³Coarse particles
SO₂10 µg/m³Sulphur dioxide
CO212 µg/m³Carbon monoxide
NO₂18 µg/m³Nitrogen dioxide
O₃39 µg/m³Ozone

Hourly forecast Thiruvallur (Tamil Nadu)

TimeTempCondition
Now29°COvercastOvercast
08:0031°COvercastOvercast
09:0032°COvercastOvercast
10:0034°COvercastOvercast
11:0035°COvercastOvercast
12:0036°COvercastOvercast
13:0036°CLight drizzleLight drizzle
14:0037°COvercastOvercast
15:0037°COvercastOvercast
16:0036°COvercastOvercast
17:0032°CModerate drizzleModerate drizzle
18:0032°COvercastOvercast
19:0031°COvercastOvercast
20:0030°COvercastOvercast
21:0030°COvercastOvercast
22:0029°COvercastOvercast
23:0029°COvercastOvercast
00:0028°COvercastOvercast
01:0028°COvercastOvercast
02:0028°COvercastOvercast
03:0028°COvercastOvercast
04:0028°COvercastOvercast
05:0028°COvercastOvercast
06:0028°COvercastOvercast

Health Recommendations

Based on current air quality: Moderate · AQI 63

Moderate
  • Air PurifierTurn On
  • Car FilterMust
  • N95 MaskMust
  • Stay IndoorMust
Outdoor Activity Guidelines

Air quality is generally fine, though a small number of unusually sensitive people may notice mild effects. If you fall into a sensitive group, keep an eye on how you feel and go easy on strenuous outdoor activity.

Standard: US EPA AQI ScaleUpdated: Live
Cigarette Equivalent

0.9 per day

Equates to breathing local air

Weekly Exposure

6.3 cigarettes

Monthly Exposure

27 cigarettes

Risk Assessments

Prevent Health Problems

Mild RiskHeadaches

Risk is Mild for Moderate conditions (AQI 63).

Common Symptoms

Commonly seen signs include: Tight, band-like pressure across the forehead and temples, Extra sensitivity to light, noise, or strong smells, Sluggishness and trouble staying focused.

Do's
  • Opt for at home with air with filtration whenever pollution levels climb.
  • Increase fluids through the day and rest from digital screens or intense light if migraines hit you easily.
  • Keep any prescribed headache or migraine relief within reach.
Don'ts
  • Don’t power through demanding outdoor exercise while the AQI is elevated.
  • Do not brush off pain that feels sharper or different from your usual.
AQI Graph

Historical AQI Data Thiruvallur (Tamil Nadu)

62
Min. AQIat 11:00 PM on 11th Aug
66
Max. AQIat 3:00 AM on 11th Aug
11-08-2026Time12-08-2026

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Air Quality FAQs at Thiruvallur, Tamil Nadu

The current real-time AQI (US) level in Thiruvallur, Tamil Nadu is 63 (Moderate). This was last updated recently.

The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.

The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.

The AQI (US) levels in Thiruvallur, Tamil Nadu have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

Current AQI (US) levels are moderate for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.