Bulandshahr vs Virudhunagar
Side-by-side air quality comparison between Bulandshahr and Virudhunagar.
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 | Bulandshahr | Virudhunagar |
|---|---|---|
| PM2.5(µg/m³) | 71.00 | 5.30 |
| PM10(µg/m³) | 110.10 | 6.30 |
| NO₂(µg/m³) | 35.60 | 7.50 |
| SO₂(µg/m³) | 9.70 | 2.90 |
| O₃(µg/m³) | 39.00 | 34.00 |
| CO(µg/m³) | 517.00 | 128.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bulandshahr averaged an AQI of 142 while Virudhunagar averaged 52 — a 90-point (173%) gap, with Bulandshahr the more polluted and Virudhunagar the cleaner of the two. On 193 days when both cities reported, Virudhunagar was cleaner on 180 of them; the average daily gap was 104 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Bulandshahr logged 3.2% Severe days and 27.099999999999998% Good-or-Satisfactory days; Virudhunagar was 0% Severe and 92.3% Good-or-Satisfactory. Longest clean-air streaks: Bulandshahr 41 days, Virudhunagar 31 days.
Year-over-year progress
The worst recorded day for Bulandshahr reached AQI 500 at Yamunapuram (UPPCB) on 2018-06-13; Virudhunagar hit AQI 173 at Collectorate Office (TNPCB) on 2024-11-07.
Station-level disparity
Bulandshahr spans 1 CPCB stations with a 0-point spread (min 180, max 180); Virudhunagar spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Virudhunagar has better air quality with an AQI of 9 compared to Bulandshahr's 137. That's a significant difference of 128 points.