Chennai vs Mangalore
Side-by-side air quality comparison between Chennai and Mangalore.
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 Mangalore averaged 61 — a 7-point (11%) gap, with Chennai the more polluted and Mangalore the cleaner of the two. On 895 days when both cities reported, Mangalore was cleaner on 773 of them; the average daily gap was 45 AQI points.
Seasonality & days
Chennai peaks in December, while Mangalore peaks in February. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Mangalore was 0% Severe and 87.2% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Mangalore 64 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Mangalore has improved by 9 AQI points (12.9%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Mangalore hit AQI 235 at Kadri (KSPCB) on 2023-11-17.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Mangalore spans 1 stations with a 0-point spread (min 68, max 68).