Hapur vs Thiruvananthapuram
Side-by-side air quality comparison between Hapur 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 | Hapur | Thiruvananthapuram |
|---|---|---|
| PM2.5(µg/m³) | 69.60 | 5.30 |
| PM10(µg/m³) | 96.40 | 9.50 |
| NO₂(µg/m³) | 27.40 | 1.50 |
| SO₂(µg/m³) | 11.00 | 0.40 |
| O₃(µg/m³) | 65.00 | 38.00 |
| CO(µg/m³) | 548.00 | 102.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hapur averaged an AQI of 142 while Thiruvananthapuram averaged 56 — a 86-point (154%) gap, with Hapur the more polluted and Thiruvananthapuram the cleaner of the two. On 1676 days when both cities reported, Thiruvananthapuram was cleaner on 1439 of them; the average daily gap was 106 AQI points.
Seasonality & days
Hapur peaks in November, while Thiruvananthapuram peaks in January. Hapur logged 1.9% Severe days and 36.2% Good-or-Satisfactory days; Thiruvananthapuram was 0% Severe and 92% Good-or-Satisfactory. Longest clean-air streaks: Hapur 55 days, Thiruvananthapuram 172 days.
Year-over-year progress
Hapur has improved by 197 AQI points (58.1%) from 2018 to 2024; Thiruvananthapuram has improved by 11 AQI points (16.4%) over the same window. The worst recorded day for Hapur reached AQI 477 at Anand Vihar (UPPCB) on 2019-10-31; Thiruvananthapuram hit AQI 387 at Plammoodu Thiruvananthapuram (PCB) on 2021-08-30.
Station-level disparity
Hapur spans 1 CPCB stations with a 0-point spread (min 159, max 159); 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 Hapur's 133. That's a significant difference of 123 points.