Gummidipoondi vs Varanasi
Side-by-side air quality comparison between Gummidipoondi and Varanasi.
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 | Gummidipoondi | Varanasi |
|---|---|---|
| PM2.5(µg/m³) | 10.50 | 43.80 |
| PM10(µg/m³) | 12.00 | 52.90 |
| NO₂(µg/m³) | 11.90 | 28.20 |
| SO₂(µg/m³) | 6.80 | 36.90 |
| O₃(µg/m³) | 52.00 | 45.00 |
| CO(µg/m³) | 286.00 | 440.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gummidipoondi averaged an AQI of 107 while Varanasi averaged 56 — a 51-point (91%) gap, with Gummidipoondi the more polluted and Varanasi the cleaner of the two. On 739 days when both cities reported, Varanasi was cleaner on 371 of them; the average daily gap was 62 AQI points.
Seasonality & days
Gummidipoondi peaks in November, while Varanasi peaks in January. Gummidipoondi logged 0% Severe days and 59.1% Good-or-Satisfactory days; Varanasi was 2.8% Severe and 36% Good-or-Satisfactory. Longest clean-air streaks: Gummidipoondi 49 days, Varanasi 87 days.
Year-over-year progress
Gummidipoondi has worsened by 8 AQI points (8.1%) from 2021 to 2024; Varanasi has improved by 169 AQI points (75.1%) over the same window. The worst recorded day for Gummidipoondi reached AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22; Varanasi hit AQI 500 at Ardhali Bazar (UPPCB) on 2017-07-11.
Station-level disparity
Gummidipoondi spans 1 CPCB stations with a 0-point spread (min 99, max 99); Varanasi spans 4 stations with a 94-point spread (min 71, max 165).
Verdict
🏆 Gummidipoondi has better air quality with an AQI of 18 compared to Varanasi's 74. That's a significant difference of 56 points.