Prayagraj vs Virudhunagar
Side-by-side air quality comparison between Prayagraj 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 | Prayagraj | Virudhunagar |
|---|---|---|
| PM2.5(µg/m³) | 76.80 | 5.00 |
| PM10(µg/m³) | 93.80 | 6.00 |
| NO₂(µg/m³) | 59.00 | 7.30 |
| SO₂(µg/m³) | 16.00 | 3.00 |
| O₃(µg/m³) | 8.00 | 33.00 |
| CO(µg/m³) | 252.00 | 124.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Prayagraj averaged an AQI of 80 while Virudhunagar averaged 52 — a 28-point (54%) gap, with Prayagraj the more polluted and Virudhunagar the cleaner of the two. On 195 days when both cities reported, Virudhunagar was cleaner on 182 of them; the average daily gap was 49 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Prayagraj logged 0.2% Severe days and 48% Good-or-Satisfactory days; Virudhunagar was 0% Severe and 92.3% Good-or-Satisfactory. Longest clean-air streaks: Prayagraj 69 days, Virudhunagar 31 days.
Year-over-year progress
The worst recorded day for Prayagraj reached AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08; Virudhunagar hit AQI 173 at Collectorate Office (TNPCB) on 2024-11-07.
Station-level disparity
Prayagraj spans 3 CPCB stations with a 9-point spread (min 96, max 105); Virudhunagar spans 1 stations with a 0-point spread (min 52, max 52).
Verdict
🏆 Virudhunagar has better air quality with an AQI of 8 compared to Prayagraj's 156. That's a significant difference of 148 points.