Alwar Air Quality Index (AQI) & Air Pollution Today
Rajasthan, India — Real-time Air Quality Index (AQI) and PM2.5
Alwar AQI Right Now
Category: Moderate
Dominant Pollutant: pm10
PM2.5: 50.08 µg/m³
PM10: 105.71 µg/m³
Last updated: 2026-03-24 — Data source: Google Air Quality API (NAQI). Live NAQI values load when you visit the page.
Alwar Pollutant Levels
| Pollutant | Concentration |
|---|---|
| PM2.5 | 50.08 µg/m³ |
| PM10 | 105.71 µg/m³ |
| O₃ (Ozone) | 1.88 µg/m³ |
| NO₂ | 31.15 µg/m³ |
| SO₂ | 8.02 µg/m³ |
| CO | 255.7 µg/m³ |
Health Advisory — Alwar
Moderate: Breathing discomfort to people with lungs, asthma and heart diseases.
Health Impact — Alwar
Cigarette Equivalent: Breathing this air is equivalent to smoking 2.3 cigarettes per day (based on current PM2.5 levels).
Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.26 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).
Health Recommendations for Alwar
- 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 Alwar Air Quality
Alwar, strategically located in the Aravalli foothills of northeastern Rajasthan, occupies a unique position as the gateway between the National Capital Region and Rajasthan's desert heartland. The city's proximity to Delhi - roughly 150 km via NH-48 - means it shares some of the NCR's pollution burden, with vehicular emissions from heavy truck traffic on the Delhi–Jaipur corridor passing through or skirting the city. The Bhiwadi industrial belt, one of Rajasthan's largest industrial clusters within Alwar district, houses automotive, chemical, and manufacturing units whose emissions drift toward the city when winds blow from the northeast.
Winter months (November–February) bring the worst air quality as cold-air inversions settle into the Aravalli valleys, trapping vehicle exhaust, industrial emissions, and dust from the extensive stone quarrying operations in the surrounding hills. PM2.5 levels can reach 150–180 µg/m³ during calm December nights, rivalling NCR values. Crop residue burning in the agricultural hinterland adds seasonal smoke loading, particularly in November. The Sariska Tiger Reserve to the southwest provides a forested buffer, but its protective effect is limited to downwind scenarios.
The monsoon (July–September) delivers significant relief with 500–650 mm of rainfall washing out accumulated dust and suppressing construction and quarrying particulates. Post-monsoon October is typically the cleanest month. Pre-monsoon heat (April–June) brings occasional dust storms from the Thar Desert, though the Aravalli range partially shields Alwar from the worst desert dust events that afflict cities further west.
Primary Pollution Sources
- Vehicle exhaust
- Industrial emissions (Bhiwadi corridor)
- Stone quarrying and mining dust
- Road dust
- Construction dust
- Crop residue burning
Geography: Aravalli foothills in northeastern Rajasthan; NCR proximity (~150 km from Delhi), Sariska Tiger Reserve, semi-arid climate with industrial Bhiwadi belt in the district
Peak pollution months: November, December, January, February
Frequently Asked Questions — Alwar
How does Alwar's proximity to Delhi's NCR affect its air quality?
Alwar lies roughly 150 km from Delhi along the busy NH-48 corridor. Heavy truck and vehicle traffic passing through the region contributes exhaust emissions, while the Bhiwadi industrial belt within Alwar district houses hundreds of manufacturing units whose emissions can drift cityward. During winter inversions, Alwar can experience PM2.5 levels comparable to NCR fringe cities, particularly when northeasterly winds carry Delhi's pollution plume southward.
Does stone quarrying affect Alwar's air quality?
Yes - the Aravalli Hills around Alwar host extensive stone quarrying and mining operations that generate significant PM10 dust. Blasting, crushing, and transport of stone material creates mineral dust that settles across nearby residential areas, particularly during dry months when there is no rainfall to suppress dust. Quarrying activity is a major contributor to Alwar's elevated PM10 readings year-round.
Air Quality in Nearby Cities
- Bharatpur AQI — Rajasthan
- Mathura AQI — Uttar Pradesh
- Gurgaon AQI — Haryana
- Jaipur AQI — Rajasthan
- Faridabad AQI — Haryana
- Delhi AQI — Delhi