Vallioor Air Quality Index (AQI) & Air Pollution Today

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

Vallioor AQI Right Now

25

Category: Good

Dominant Pollutant: pm10

PM2.5: 8.83 µg/m³

PM10: 24.6 µg/m³

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

Vallioor Pollutant Levels

PollutantConcentration
PM2.58.83 µg/m³
PM1024.6 µg/m³
O₃ (Ozone)32.71 µg/m³
NO₂1.95 µg/m³
SO₂2.41 µg/m³
CO284.62 µg/m³

Health Advisory — Vallioor

Good: Minimal impact on health. Great day to be outdoors!

Health Impact — Vallioor

Cigarette Equivalent: Breathing this air is equivalent to smoking 0.4 cigarettes per day (based on current PM2.5 levels).

Health Recommendations for Vallioor

  • 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 Vallioor Air Quality

Vallioor's air quality is influenced by its role as a Southern Railway junction, with diesel locomotive emissions and goods transport activity creating a baseline pollution level uncommon in similarly-sized agricultural towns. During winter months from November to February, stable atmospheric conditions trap diesel particulates and coal dust near the railway corridor, affecting nearby residential areas. Freight train operations moving goods between Tamil Nadu's interior and coastal ports contribute continuous emissions, most noticeable during early mornings and late evenings when atmospheric mixing is minimal.

Agricultural burning in surrounding fields during harvest seasons adds episodic smoke that combines with railway emissions to create temporary air quality degradation. Vehicular traffic through the town, including goods vehicles accessing railway facilities, contributes diesel emissions and road dust. Summer months from March to May see elevated dust levels from railway yards and construction, though stronger winds provide better dispersal than winter's stagnant conditions. The town's proximity to the coast provides some moderating influence through sea breezes, and monsoon months from October to December deliver rainfall that improves air quality. The challenge for Vallioor lies in managing transport corridor emissions while maintaining livability for residential areas adjacent to railway operations.

Primary Pollution Sources

  • Railway corridor diesel emissions
  • Coal and goods transport dust
  • Vehicular emissions
  • Agricultural biomass burning
  • Construction and maintenance dust

Geography: Southern Railway junction town near the coast, with railway operations and transport-related activities.

Peak pollution months: November, December, January, February

Frequently Asked Questions — Vallioor

How does the railway junction affect Vallioor's air quality?

Vallioor is a Southern Railway junction handling passenger and freight trains. Diesel locomotive emissions, coal dust from goods transport, and particulates from railway yard operations contribute to air pollution. The impact is most concentrated along the railway corridor and is worse during winter months when emissions are trapped near ground level by stable atmospheric conditions.

Is Vallioor's coastal location beneficial for air quality?

Yes, Vallioor's proximity to the coast provides sea breezes that help disperse pollutants, particularly during summer and afternoon hours. The marine influence brings cleaner air and helps moderate temperature extremes. However, winter months still see pollution accumulation from railway and vehicular emissions due to reduced atmospheric mixing despite the coastal location.

Air Quality in Nearby Cities