Chennai vs Motihari
Side-by-side air quality comparison between Chennai and Motihari.
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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Motihari averaged 116 — a 48-point (71%) gap, with Motihari the more polluted and Chennai the cleaner of the two. On 662 days when both cities reported, Chennai was cleaner on 400 of them; the average daily gap was 83 AQI points.
Seasonality & days
Chennai peaks in December, while Motihari peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Motihari was 1.2% Severe and 39.1% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Motihari 26 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Motihari has improved by 106 AQI points (47.7%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Motihari hit AQI 448 at Gandak Colony (BSPCB) on 2022-11-17.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Motihari spans 1 stations with a 0-point spread (min 153, max 153).