Cuddalore vs Tonk
Side-by-side air quality comparison between Cuddalore and Tonk.
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 | Tonk |
|---|---|---|
| PM2.5(µg/m³) | 13.70 | 27.80 |
| PM10(µg/m³) | 17.10 | 53.10 |
| NO₂(µg/m³) | 16.80 | 9.00 |
| SO₂(µg/m³) | 7.60 | 4.10 |
| O₃(µg/m³) | 36.00 | 47.00 |
| CO(µg/m³) | 425.00 | 206.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Cuddalore averaged an AQI of 52 while Tonk averaged 142 — a 90-point (173%) gap, with Tonk the more polluted and Cuddalore the cleaner of the two. On 259 days when both cities reported, Cuddalore was cleaner on 241 of them; the average daily gap was 84 AQI points.
Seasonality & days
Cuddalore peaks in January, while Tonk peaks in November. Cuddalore logged 0% Severe days and 90.6% Good-or-Satisfactory days; Tonk was 0% Severe and 28.200000000000003% Good-or-Satisfactory. Longest clean-air streaks: Cuddalore 34 days, Tonk 11 days.
Year-over-year progress
The worst recorded day for Cuddalore reached AQI 329 at Kudikadu (TNPCB) on 2024-04-05; Tonk hit AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17.
Station-level disparity
Cuddalore spans 2 CPCB stations with a 11-point spread (min 46, max 57); Tonk spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Cuddalore has better air quality with an AQI of 23 compared to Tonk's 54.