Banka Air Quality Index (AQI) & Air Pollution Today
Bihar, India — Real-time Air Quality Index (AQI) and PM2.5
Banka AQI Right Now
Category: Satisfactory
Dominant Pollutant: pm10
PM2.5: 47.29 µg/m³
PM10: 93.32 µg/m³
Last updated: 2026-03-24 — Data source: Google Air Quality API (NAQI). Live NAQI values load when you visit the page.
Banka Pollutant Levels
| Pollutant | Concentration |
|---|---|
| PM2.5 | 47.29 µg/m³ |
| PM10 | 93.32 µg/m³ |
| O₃ (Ozone) | 7.03 µg/m³ |
| NO₂ | 3.48 µg/m³ |
| SO₂ | 13.68 µg/m³ |
| CO | 819.87 µg/m³ |
Health Advisory — Banka
Satisfactory: Minor breathing discomfort to sensitive people.
Health Impact — Banka
Cigarette Equivalent: Breathing this air is equivalent to smoking 2.1 cigarettes per day (based on current PM2.5 levels).
Life Expectancy Impact: Sustained exposure at this PM2.5 level could reduce life expectancy by 0.24 years (AQLI estimate, relative to WHO guideline of 5 µg/m³).
Health Recommendations for Banka
- General Population: Acceptable air quality. Unusually sensitive people should limit prolonged outdoor exertion.
- Elderly: Minor breathing discomfort is possible.
- Children: Should be fine outdoors with normal activities.
- Lung Disease Patients: Consider reducing prolonged outdoor exertion.
Understanding Banka Air Quality
Banka occupies a distinctive transitional landscape in eastern Bihar where the flat Gangetic alluvium gives way to the rocky, forested foothills of the Chotanagpur Plateau along the Jharkhand border. This undulating terrain-unusual for Bihar-means that Banka does not experience the same uniform fog blankets that define winter pollution in the plains districts. Instead, pollution accumulates in low-lying valleys and depressions along the Chandan River while hilltop areas may enjoy somewhat better ventilation. The surrounding deciduous forests, while a carbon sink during the growing season, become a source of smoke when dry-season forest fires sweep through the fringe areas from February onward.
Winter months from November through February bring deteriorating air quality as domestic biomass burning intensifies across the district's predominantly rural population. The reliance on firewood is even higher here than in the central Bihar plains due to the proximity of forests and limited LPG distribution infrastructure. Brick kilns dot the river valleys where clay deposits are accessible, contributing fly ash and sulphur emissions. Agricultural burning of paddy stubble after the October harvest adds to the seasonal haze, though on a smaller scale than the intensive rice belt further north.
The monsoon season from June through September cleanses the atmosphere with 1,100 to 1,300 mm of rainfall while also greening the surrounding forests. Pre-monsoon months bring moderate dust from unpaved roads-Banka has one of the lower road-paving ratios in Bihar-and occasional hot winds from the west. The forested terrain offers marginally better year-round air quality compared to the open Gangetic plain towns, as tree cover acts as a natural filter and wind break, though this advantage disappears rapidly when forest fires ignite in the dry season.
Primary Pollution Sources
- Domestic biomass burning
- Brick kilns
- Road dust from unpaved surfaces
- Agricultural burning
- Forest fire smoke
Geography: Eastern Bihar town near the Jharkhand border on the Chandan River; undulating rocky terrain transitioning from Gangetic plain to Chotanagpur fringe forests
Peak pollution months: November, December, January, February
Frequently Asked Questions — Banka
Does Banka's hilly terrain help with air quality compared to plains towns?
Banka's undulating terrain near the Jharkhand border provides some advantage over flat Gangetic plain towns. Hilltop areas get better wind ventilation, and forest cover acts as a natural particulate filter. However, pollution tends to accumulate in low-lying river valleys during winter inversions, and dry-season forest fires can temporarily worsen air quality significantly.
What role do forest fires play in Banka's air quality?
Banka's proximity to the Chotanagpur Plateau fringe forests means that dry-season forest fires from February through May contribute smoke and particulates to the local air. These fires, often set intentionally to clear undergrowth or by accident, can cause sudden PM2.5 spikes. During the rest of the year, the forest cover actually benefits air quality by filtering particulates.
Air Quality in Nearby Cities
- Bhagalpur AQI — Bihar
- Deoghar AQI — Jharkhand
- Jamui AQI — Bihar
- Munger AQI — Bihar
- Khagaria AQI — Bihar
- Lakhisarai AQI — Bihar