Chennai vs Imphal
Side-by-side air quality comparison between Chennai and Imphal.
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 Imphal averaged 110 — a 42-point (62%) gap, with Imphal the more polluted and Chennai the cleaner of the two. On 551 days when both cities reported, Chennai was cleaner on 309 of them; the average daily gap was 39 AQI points.
Seasonality & days
Chennai peaks in December, while Imphal peaks in October. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Imphal was 1.1% Severe and 49.400000000000006% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Imphal 103 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Imphal has worsened by 23 AQI points (26.4%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Imphal hit AQI 500 at University Imphal (PCB) on 2024-10-11.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Imphal spans 2 stations with a 4-point spread (min 97, max 101).