Chennai vs Navi Mumbai
Side-by-side air quality comparison between Chennai and Navi Mumbai.
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 Navi Mumbai averaged 107 — a 39-point (57%) gap, with Navi Mumbai the more polluted and Chennai the cleaner of the two. On 2144 days when both cities reported, Chennai was cleaner on 1287 of them; the average daily gap was 68 AQI points.
Seasonality & days
Chennai peaks in December, while Navi Mumbai peaks in January. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Navi Mumbai was 0.2% Severe and 43.6% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Navi Mumbai 57 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Navi Mumbai has worsened by 29 AQI points (37.2%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Navi Mumbai hit AQI 477 at Airoli Navi (MPCB) on 2019-04-14.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Navi Mumbai spans 8 stations with a 37-point spread (min 93, max 130).