Sonipat vs Thiruvananthapuram
Side-by-side air quality comparison between Sonipat 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 | Sonipat | Thiruvananthapuram |
|---|---|---|
| PM2.5(µg/m³) | 77.50 | 5.50 |
| PM10(µg/m³) | 154.10 | 10.00 |
| NO₂(µg/m³) | 50.80 | 1.70 |
| SO₂(µg/m³) | 35.90 | 0.50 |
| O₃(µg/m³) | 47.00 | 37.00 |
| CO(µg/m³) | 689.00 | 85.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Sonipat averaged an AQI of 134 while Thiruvananthapuram averaged 56 — a 78-point (139%) gap, with Sonipat the more polluted and Thiruvananthapuram the cleaner of the two. On 1507 days when both cities reported, Thiruvananthapuram was cleaner on 1370 of them; the average daily gap was 97 AQI points.
Seasonality & days
Sonipat peaks in November, while Thiruvananthapuram peaks in January. Sonipat logged 0.8% Severe days and 26.5% Good-or-Satisfactory days; Thiruvananthapuram was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Sonipat 21 days, Thiruvananthapuram 172 days.
Year-over-year progress
Sonipat has improved by 220 AQI points (62.1%) from 2018 to 2024; Thiruvananthapuram has improved by 11 AQI points (16.4%) over the same window. The worst recorded day for Sonipat reached AQI 455 at Murthal (HSPCB) on 2023-11-03; Thiruvananthapuram hit AQI 387 at Plammoodu Thiruvananthapuram (PCB) on 2021-08-30.
Station-level disparity
Sonipat 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 Sonipat's 159. That's a significant difference of 149 points.