Chennai vs Moradabad
Side-by-side air quality comparison between Chennai and Moradabad.
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 Moradabad averaged 99 — a 31-point (46%) gap, with Moradabad the more polluted and Chennai the cleaner of the two. On 1866 days when both cities reported, Chennai was cleaner on 1361 of them; the average daily gap was 97 AQI points.
Seasonality & days
Chennai peaks in December, while Moradabad peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Moradabad was 2.8% Severe and 25% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Moradabad 55 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Moradabad has improved by 223 AQI points (69.3%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Moradabad hit AQI 489 at Lajpat Nagar (UPPCB) on 2020-11-05.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Moradabad spans 7 stations with a 114-point spread (min 96, max 210).