Charkhi Dādri vs Tiruchirappalli
Side-by-side air quality comparison between Charkhi Dādri and Tiruchirappalli.
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 | Tiruchirappalli |
|---|---|---|
| PM2.5(µg/m³) | 49.50 | 3.70 |
| PM10(µg/m³) | 226.80 | 4.40 |
| NO₂(µg/m³) | 0.60 | 1.10 |
| SO₂(µg/m³) | 5.50 | 1.90 |
| O₃(µg/m³) | 159.00 | 90.00 |
| CO(µg/m³) | 238.00 | 116.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Charkhi Dādri averaged an AQI of 145 while Tiruchirappalli averaged 50 — a 95-point (190%) gap, with Charkhi Dādri the more polluted and Tiruchirappalli the cleaner of the two. On 87 days when both cities reported, Tiruchirappalli was cleaner on 85 of them; the average daily gap was 142 AQI points.
Seasonality & days
Charkhi Dādri peaks in November, while Tiruchirappalli peaks in January. Charkhi Dādri logged 0.7% Severe days and 28% Good-or-Satisfactory days; Tiruchirappalli was 0% Severe and 96.5% Good-or-Satisfactory. Longest clean-air streaks: Charkhi Dādri 48 days, Tiruchirappalli 46 days.
Year-over-year progress
Charkhi Dādri has improved by 51 AQI points (26%) from 2020 to 2024; Tiruchirappalli has improved by 23 AQI points (31.5%) over the same window. The worst recorded day for Charkhi Dādri reached AQI 470 at Mini Secretariat Charkhi (HSPCB) on 2021-11-12; Tiruchirappalli hit AQI 114 at St Joseph College (TNPCB) on 2024-01-14.
Station-level disparity
Charkhi Dādri spans 1 CPCB stations with a 0-point spread (min 162, max 162); Tiruchirappalli spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Tiruchirappalli has better air quality with an AQI of 6 compared to Charkhi Dādri's 185. That's a significant difference of 179 points.