Chennai vs Davanagere
Side-by-side air quality comparison between Chennai and Davanagere.
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 | Davanagere |
|---|---|---|
| PM2.5(µg/m³) | 13.90 | 6.60 |
| PM10(µg/m³) | 15.30 | 8.90 |
| NO₂(µg/m³) | 15.00 | 8.10 |
| SO₂(µg/m³) | 9.10 | 2.00 |
| O₃(µg/m³) | 56.00 | 32.00 |
| CO(µg/m³) | 316.00 | 159.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Davanagere averaged 57 — a 11-point (19%) gap, with Chennai the more polluted and Davanagere the cleaner of the two. On 826 days when both cities reported, Davanagere was cleaner on 709 of them; the average daily gap was 53 AQI points.
Seasonality & days
Chennai peaks in December, while Davanagere peaks in March. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Davanagere was 0% Severe and 89.6% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Davanagere 35 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Davanagere has worsened by 5 AQI points (9.6%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Davanagere hit AQI 233 at Devaraj Urs Badavane (KSPCB) on 2023-11-15.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Davanagere spans 1 stations with a 0-point spread (min 57, max 57).
Verdict
🏆 Davanagere has better air quality with an AQI of 11 compared to Chennai's 23.