Chennai vs Meerut
Side-by-side air quality comparison between Chennai and Meerut.
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 Meerut averaged 144 — a 76-point (112%) gap, with Meerut the more polluted and Chennai the cleaner of the two. On 1568 days when both cities reported, Chennai was cleaner on 1244 of them; the average daily gap was 114 AQI points.
Seasonality & days
Chennai peaks in December, while Meerut peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Meerut was 2% Severe and 22.299999999999997% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Meerut 25 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Meerut has improved by 116 AQI points (44.6%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Meerut hit AQI 490 at Pallavpuram Phase 2 (UPPCB) on 2020-11-05.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Meerut spans 3 stations with a 13-point spread (min 172, max 185).