Chennai vs Kadapa
Side-by-side air quality comparison between Chennai and Kadapa.
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 | Kadapa |
|---|---|---|
| PM2.5(µg/m³) | 10.60 | 5.90 |
| PM10(µg/m³) | 12.20 | 8.10 |
| NO₂(µg/m³) | 13.50 | 5.00 |
| SO₂(µg/m³) | 11.60 | 6.20 |
| O₃(µg/m³) | 58.00 | 63.00 |
| CO(µg/m³) | 312.00 | 150.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chennai averaged an AQI of 68 while Kadapa averaged 62 — a 6-point (10%) gap, with Chennai the more polluted and Kadapa the cleaner of the two. On 244 days when both cities reported, Kadapa was cleaner on 215 of them; the average daily gap was 44 AQI points.
Seasonality & days
Chennai peaks in December, while Kadapa peaks in February. Chennai logged 0% Severe days and 57.5% Good-or-Satisfactory days; Kadapa was 0% Severe and 87.80000000000001% Good-or-Satisfactory. Longest clean-air streaks: Chennai 53 days, Kadapa 72 days.
Year-over-year progress
Chennai has improved by 25 AQI points (26.9%) from 2017 to 2024; Kadapa has improved by 6 AQI points (8.8%) over the same window. The worst recorded day for Chennai reached AQI 391 at Kodungaiyur (TNPCB) on 2021-05-14; Kadapa hit AQI 260 at Yerramukkapalli (APPCB) on 2024-12-11.
Station-level disparity
Chennai spans 9 CPCB stations with a 27-point spread (min 63, max 90); Kadapa spans 1 stations with a 0-point spread (min 65, max 65).
Verdict
🏆 Kadapa has better air quality with an AQI of 10 compared to Chennai's 18.