Charkhi Dādri vs Cuddalore
Side-by-side air quality comparison between Charkhi Dādri 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 | Charkhi Dādri | Cuddalore |
|---|---|---|
| PM2.5(µg/m³) | 64.70 | 15.00 |
| PM10(µg/m³) | 194.20 | 18.20 |
| NO₂(µg/m³) | 12.60 | 15.90 |
| SO₂(µg/m³) | 9.40 | 10.00 |
| O₃(µg/m³) | 83.00 | 39.00 |
| CO(µg/m³) | 490.00 | 353.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Charkhi Dādri averaged an AQI of 145 while Cuddalore averaged 52 — a 93-point (179%) gap, with Charkhi Dādri the more polluted and Cuddalore the cleaner of the two. On 309 days when both cities reported, Cuddalore was cleaner on 272 of them; the average daily gap was 87 AQI points.
Seasonality & days
Charkhi Dādri peaks in November, while Cuddalore peaks in January. Charkhi Dādri logged 0.7% Severe days and 28% Good-or-Satisfactory days; Cuddalore was 0% Severe and 90.6% Good-or-Satisfactory. Longest clean-air streaks: Charkhi Dādri 48 days, Cuddalore 34 days.
Year-over-year progress
The worst recorded day for Charkhi Dādri reached AQI 470 at Mini Secretariat Charkhi (HSPCB) on 2021-11-12; Cuddalore hit AQI 329 at Kudikadu (TNPCB) on 2024-04-05.
Station-level disparity
Charkhi Dādri spans 1 CPCB stations with a 0-point spread (min 162, max 162); Cuddalore spans 2 stations with a 11-point spread (min 46, max 57).
Verdict
🏆 Cuddalore has better air quality with an AQI of 25 compared to Charkhi Dādri's 163. That's a significant difference of 138 points.