Chennai vs Kota
Side-by-side air quality comparison between Chennai and Kota.
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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Chennai | Kota |
|---|---|---|
| PM2.5(µg/m³) | 10.60 | 24.90 |
| PM10(µg/m³) | 12.20 | 39.00 |
| NO₂(µg/m³) | 13.50 | 5.60 |
| SO₂(µg/m³) | 11.60 | 9.30 |
| O₃(µg/m³) | 58.00 | 71.00 |
| CO(µg/m³) | 312.00 | 177.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Kota averaged 131 — a 63-point (93%) gap, with Kota the more polluted and Chennai the cleaner of the two. On 2174 days when both cities reported, Chennai was cleaner on 1201 of them; the average daily gap was 58 AQI points.
Seasonality & days
Chennai peaks in December, while Kota peaks in November. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Kota was 0% Severe and 40.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Kota 89 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Kota has improved by 45 AQI points (25.6%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Kota hit AQI 375 at Shrinath Puram (RSPCB) on 2021-11-14.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Kota spans 3 stations with a 9-point spread (min 121, max 130).
Verdict
🏆 Chennai has better air quality with an AQI of 18 compared to Kota's 42.