Asansol vs Tirupati
Side-by-side air quality comparison between Asansol and Tirupati.
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 | Asansol | Tirupati |
|---|---|---|
| PM2.5(µg/m³) | 89.60 | 10.70 |
| PM10(µg/m³) | 95.50 | 11.80 |
| NO₂(µg/m³) | 48.70 | 11.20 |
| SO₂(µg/m³) | 82.10 | 2.50 |
| O₃(µg/m³) | 39.00 | 53.00 |
| CO(µg/m³) | 708.00 | 159.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Asansol averaged an AQI of 145 while Tirupati averaged 75 — a 70-point (93%) gap, with Asansol the more polluted and Tirupati the cleaner of the two. On 261 days when both cities reported, Tirupati was cleaner on 228 of them; the average daily gap was 126 AQI points.
Seasonality & days
Asansol peaks in December, while Tirupati peaks in April. Asansol logged 0% Severe days and 43.3% Good-or-Satisfactory days; Tirupati was 0% Severe and 84% Good-or-Satisfactory. Longest clean-air streaks: Asansol 44 days, Tirupati 36 days.
Year-over-year progress
Asansol has worsened by 12 AQI points (9%) from 2018 to 2024; Tirupati has improved by 20 AQI points (21.1%) over the same window. The worst recorded day for Asansol reached AQI 394 at Court Area (WBPCB) on 2022-12-13; Tirupati hit AQI 263 at Vaikuntapuram (APPCB) on 2022-11-16.
Station-level disparity
Asansol spans 4 CPCB stations with a 40-point spread (min 123, max 163); Tirupati spans 1 stations with a 0-point spread (min 75, max 75).
Verdict
🏆 Tirupati has better air quality with an AQI of 18 compared to Asansol's 199. That's a significant difference of 181 points.