Charkhi Dādri vs Thiruvananthapuram
Side-by-side air quality comparison between Charkhi Dādri and Thiruvananthapuram.
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 | Thiruvananthapuram |
|---|---|---|
| PM2.5(µg/m³) | 67.80 | 5.30 |
| PM10(µg/m³) | 219.30 | 9.50 |
| NO₂(µg/m³) | 11.50 | 1.50 |
| SO₂(µg/m³) | 9.90 | 0.40 |
| O₃(µg/m³) | 99.00 | 38.00 |
| CO(µg/m³) | 416.00 | 102.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Charkhi Dādri averaged an AQI of 145 while Thiruvananthapuram averaged 56 — a 89-point (159%) gap, with Charkhi Dādri the more polluted and Thiruvananthapuram the cleaner of the two. On 1160 days when both cities reported, Thiruvananthapuram was cleaner on 1027 of them; the average daily gap was 103 AQI points.
Seasonality & days
Charkhi Dādri peaks in November, while Thiruvananthapuram peaks in January. Charkhi Dādri logged 0.7% Severe days and 28% Good-or-Satisfactory days; Thiruvananthapuram was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Charkhi Dādri 48 days, Thiruvananthapuram 172 days.
Year-over-year progress
Charkhi Dādri has improved by 51 AQI points (26%) from 2020 to 2024; Thiruvananthapuram has improved by 11 AQI points (16.4%) over the same window. The worst recorded day for Charkhi Dādri reached AQI 470 at Mini Secretariat Charkhi (HSPCB) on 2021-11-12; Thiruvananthapuram hit AQI 387 at Plammoodu Thiruvananthapuram (PCB) on 2021-08-30.
Station-level disparity
Charkhi Dādri spans 1 CPCB stations with a 0-point spread (min 162, max 162); Thiruvananthapuram spans 2 stations with a 7-point spread (min 57, max 64).
Verdict
🏆 Thiruvananthapuram has better air quality with an AQI of 10 compared to Charkhi Dādri's 180. That's a significant difference of 170 points.