Cuddalore vs Surat
Side-by-side air quality comparison between Cuddalore and Surat.
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 | Cuddalore | Surat |
|---|---|---|
| PM2.5(µg/m³) | 13.10 | 23.90 |
| PM10(µg/m³) | 16.60 | 45.10 |
| NO₂(µg/m³) | 17.00 | 22.90 |
| SO₂(µg/m³) | 7.60 | 38.50 |
| O₃(µg/m³) | 36.00 | 33.00 |
| CO(µg/m³) | 507.00 | 249.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Cuddalore averaged an AQI of 52 while Surat averaged 83 — a 31-point (60%) gap, with Surat the more polluted and Cuddalore the cleaner of the two. On 240 days when both cities reported, Cuddalore was cleaner on 149 of them; the average daily gap was 49 AQI points.
Seasonality & days
Cuddalore peaks in January, while Surat peaks in November. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Surat was 0% Severe and 55.9% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Surat 55 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Surat hit AQI 384 at Science Center (SMC) on 2023-08-19.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); Surat spans 1 stations with a 0-point spread (min 123, max 123).
Verdict
🏆 Cuddalore has better air quality with an AQI of 22 compared to Surat's 45.