Chennai vs Fatehābād
Side-by-side air quality comparison between Chennai and Fatehābād.
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 Fatehābād averaged 116 — a 48-point (71%) gap, with Fatehābād the more polluted and Chennai the cleaner of the two. On 1529 days when both cities reported, Chennai was cleaner on 937 of them; the average daily gap was 73 AQI points.
Seasonality & days
Chennai peaks in December, while Fatehābād peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Fatehābād was 1.5% Severe and 31.1% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Fatehābād 38 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Fatehābād has improved by 43 AQI points (27%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Fatehābād hit AQI 493 at Huda Sector (HSPCB) on 2019-11-02.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Fatehābād spans 1 stations with a 0-point spread (min 151, max 151).