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Bhagalpur vs Chennai

Side-by-side air quality comparison between Bhagalpur and Chennai.

Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).

AQI Comparison

Bhagalpur

Bihar, India

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VS

Chennai

Tamil Nadu, India

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CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Bhagalpur averaged an AQI of 164 while Chennai averaged 68 — a 96-point (141%) gap, with Bhagalpur the more polluted and Chennai the cleaner of the two. On 745 days when both cities reported, Chennai was cleaner on 591 of them; the average daily gap was 105 AQI points.

Seasonality & days

Bhagalpur peaks in January, while Chennai peaks in December. Bhagalpur logged 1.9% Severe days and 19.9% Good-or-Satisfactory days; Chennai was 0% Severe and 57.5% Good-or-Satisfactory. Longest clean-air streaks: Bhagalpur 20 days, Chennai 53 days.

Year-over-year progress

Bhagalpur has improved by 123 AQI points (42.9%) from 2021 to 2024; Chennai has improved by 25 AQI points (26.9%) over the same window. The worst recorded day for Bhagalpur reached AQI 451 at Mayaganj (BSPCB) on 2022-12-30; Chennai hit AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14.

Station-level disparity

Bhagalpur spans 2 CPCB stations with a 26-point spread (min 170, max 196); Chennai spans 9 stations with a 27-point spread (min 63, max 90).

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