Chapra vs Cuddalore
Side-by-side air quality comparison between Chapra and Cuddalore.
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 | Chapra | Cuddalore |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 13.10 |
| PM10(µg/m³) | 115.50 | 16.60 |
| NO₂(µg/m³) | 53.70 | 17.00 |
| SO₂(µg/m³) | 13.70 | 7.60 |
| O₃(µg/m³) | 10.00 | 36.00 |
| CO(µg/m³) | 858.00 | 507.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Cuddalore averaged 52 — a 97-point (187%) gap, with Chapra the more polluted and Cuddalore the cleaner of the two. On 254 days when both cities reported, Cuddalore was cleaner on 232 of them; the average daily gap was 92 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Cuddalore was 0% Severe and 90.6% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Cuddalore 34 days.
Year-over-year progress
The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Cuddalore hit AQI 329 at Kudikadu (TNPCB) on 2024-04-05.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Cuddalore spans 2 stations with a 11-point spread (min 46, max 57).
Verdict
🏆 Cuddalore has better air quality with an AQI of 22 compared to Chapra's 231. That's a significant difference of 209 points.