Danapur Air Quality Index (AQI) & Air Pollution Today
Bihar, India — Real-time Air Quality Index (AQI) and PM2.5
Danapur AQI Right Now
Category: Moderate
Dominant Pollutant: pm10
PM2.5: 52.03 µg/m³
PM10: 118.47 µg/m³
Last updated: 2026-03-24 — Data source: Google Air Quality API (NAQI). Live NAQI values load when you visit the page.
Danapur Pollutant Levels
| Pollutant | Concentration |
|---|---|
| PM2.5 | 52.03 µg/m³ |
| PM10 | 118.47 µg/m³ |
| O₃ (Ozone) | 32.51 µg/m³ |
| NO₂ | 19.59 µg/m³ |
| SO₂ | 1.4 µg/m³ |
| CO | 945.3 µg/m³ |
Health Advisory — Danapur
Moderate: Breathing discomfort to people with lungs, asthma and heart diseases.
Health Impact — Danapur
Cigarette Equivalent: Breathing this air is equivalent to smoking 2.4 cigarettes per day (based on current PM2.5 levels).
Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.27 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).
Health Recommendations for Danapur
- 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 Danapur Air Quality
Danapur, home to one of India's oldest and largest military cantonments, stretches along the southern bank of the Ganges immediately west of Patna. While the cantonment area itself maintains relatively well-managed green spaces and lower building density, the civilian town surrounding it has undergone explosive suburban growth as Patna's expanding population spills westward. This rapid, often unplanned development has created new pollution sources: construction dust from continuous residential and commercial building, increased vehicular traffic on roads connecting Danapur to Patna's urban core, and the encroachment of brick kilns on formerly open land.
October through January brings severe air quality conditions mirroring neighbouring Patna-which consistently ranks among India's most polluted cities. Danapur shares Patna's atmospheric conditions: flat Gangetic terrain, winter temperature inversions amplified by river moisture, and dense fog that traps emissions at ground level. The military cantonment's diesel generator fleet-used for backup power across the extensive base facilities-adds a localised emission source not found in typical Bihar towns. Domestic biomass burning in the civilian areas, particularly the older villages absorbed into Danapur's expanding footprint, releases PM2.5 from dung cakes and firewood. The lack of a distinct urban boundary with Patna means pollution from the capital's industrial and vehicular sources flows seamlessly into Danapur.
The monsoon from June through September provides atmospheric cleansing, though the Ganges' proximity brings flooding risks to low-lying cantonment and civilian areas alike. Post-monsoon weeks offer a brief respite before the pollution cycle restarts. Danapur's future air quality depends heavily on Patna's pollution trajectory, as the two urban areas are functionally merging into a single metropolitan zone where emission controls-or the lack thereof-in one directly impact the other.
Primary Pollution Sources
- Vehicle exhaust
- Construction dust
- Domestic biomass burning
- Brick kilns
- Military installation diesel generators
Geography: Military cantonment town adjacent to Patna along the Ganges; one of India's oldest army bases with growing suburban development on the Gangetic plain
Peak pollution months: October, November, December, January
Frequently Asked Questions — Danapur
Is Danapur's air quality different from Patna's?
Danapur's air quality closely mirrors Patna's since the two areas are adjacent and share the same atmospheric conditions. The cantonment's green spaces and lower building density may offer marginally better localised air quality, but seasonal pollution patterns-severe winter inversions, PM2.5 exceeding 200 µg/m³ in December-are essentially identical to Patna. Pollution flows freely between the two areas.
Does the military cantonment affect Danapur's air quality?
The cantonment has mixed effects. Its maintained green spaces and regulated development help local air quality. However, the military's diesel generator fleet for backup power and heavy vehicle movements contribute localised emissions. The greater impact comes from the rapid civilian development surrounding the cantonment, which brings construction dust, increased traffic, and unplanned biomass burning.
Air Quality in Nearby Cities
- Patna AQI — Bihar
- Patna Sahib AQI — Bihar
- Hajipur AQI — Bihar
- Chapra AQI — Bihar
- Saran AQI — Bihar
- Bhojpur AQI — Bihar