Sheohar Air Quality Index (AQI) & Air Pollution Today
Bihar, India — Real-time Air Quality Index (AQI) and PM2.5
Sheohar AQI Right Now
Category: Moderate
Dominant Pollutant: pm25
PM2.5: 66.01 µg/m³
PM10: 90.17 µg/m³
Last updated: 2026-03-24 — Data source: Google Air Quality API (NAQI). Live NAQI values load when you visit the page.
Sheohar Pollutant Levels
| Pollutant | Concentration |
|---|---|
| PM2.5 | 66.01 µg/m³ |
| PM10 | 90.17 µg/m³ |
| O₃ (Ozone) | 10.2 µg/m³ |
| NO₂ | 5.05 µg/m³ |
| SO₂ | 1.86 µg/m³ |
| CO | 820.74 µg/m³ |
Health Advisory — Sheohar
Moderate: Breathing discomfort to people with lungs, asthma and heart diseases.
Health Impact — Sheohar
Cigarette Equivalent: Breathing this air is equivalent to smoking 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 0.36 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).
Health Recommendations for Sheohar
- 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 Sheohar Air Quality
Sheohar holds the distinction of being Bihar's smallest district by area, a compact, deeply rural territory in north Bihar wedged between the larger districts of Sitamarhi, Muzaffarpur, and East Champaran. The Bagmati River flows near its borders, and the terrain is relentlessly flat — characteristic of the north Bihar Gangetic-Terai zone. With a town population barely above 30,000 and virtually no industry, Sheohar represents the purest expression of rural Bihar's air quality challenge: pollution driven almost entirely by poverty-linked biomass fuel dependence and agricultural burning practices.
Winter months (October–January) see significant air quality deterioration despite Sheohar's tiny urban footprint. The mechanism is straightforward: dense winter fog blankets the flat landscape, and the smoke from thousands of households burning dung cakes, wood, and crop residues for cooking and heating has nowhere to go. Rice stubble burning in October–November initiates the poor air quality season, and a handful of brick kilns operating in the district add to the particulate load. The Bagmati River's moisture contribution intensifies fog formation. Road dust from unpaved village roads — Sheohar has one of Bihar's lowest paved-road densities — adds a persistent coarse particulate component.
The monsoon (June–September) delivers heavy rainfall (1,100–1,300 mm) and clean air, though Bagmati flooding affects parts of the district. Pre-monsoon months (March–May) see moderate dust from dry fields. Sheohar's extreme rural character means that government programmes like Ujjwala (LPG distribution) and PMGSY (rural road programme) have the potential to dramatically shift its air quality profile if sustained adoption of clean fuels and road paving are achieved.
Primary Pollution Sources
- Domestic biomass burning
- Agricultural burning
- Road dust
- Brick kilns
- Vehicle exhaust
Geography: Bihar's smallest district by area in north Bihar; near Sitamarhi on the Nepal border, flat terrain with Bagmati River proximity, deeply rural and agricultural
Peak pollution months: October, November, December, January
Frequently Asked Questions — Sheohar
Why does such a small rural area have poor air quality?
Sheohar's winter air quality problems stem from the near-universal burning of biomass fuels (cow dung, wood, crop residues) in every household for cooking and heating. While total emissions are lower than in larger towns, the flat terrain and dense winter fog trap these emissions in a shallow boundary layer, concentrating PM2.5 levels to unhealthy readings. The absence of paved roads and presence of brick kilns compound the problem.
What would improve Sheohar's air quality most effectively?
The single most impactful intervention for Sheohar would be sustained adoption of LPG or other clean cooking fuels, as domestic biomass burning is overwhelmingly the dominant emission source. Road paving under PMGSY would reduce dust, and transitioning the handful of local brick kilns to cleaner technology (such as zigzag kilns) would address the remaining major source. These are development interventions rather than pollution-specific regulations.
Air Quality in Nearby Cities
- Sitamarhi AQI — Bihar
- East Champaran AQI — Bihar
- Motihari AQI — Bihar
- Muzaffarpur AQI — Bihar
- Vaishali AQI — Bihar
- Darbhanga AQI — Bihar