Gummidipoondi vs Hajipur
Side-by-side air quality comparison between Gummidipoondi and Hajipur.
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 | Hajipur |
|---|---|---|
| PM2.5(µg/m³) | 10.60 | 99.00 |
| PM10(µg/m³) | 11.90 | 111.80 |
| NO₂(µg/m³) | 12.70 | 49.30 |
| SO₂(µg/m³) | 6.00 | 18.10 |
| O₃(µg/m³) | 51.00 | 19.00 |
| CO(µg/m³) | 298.00 | 784.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Gummidipoondi averaged an AQI of 107 while Hajipur averaged 173 — a 66-point (62%) gap, with Hajipur the more polluted and Gummidipoondi the cleaner of the two. On 972 days when both cities reported, Gummidipoondi was cleaner on 742 of them; the average daily gap was 78 AQI points.
Seasonality & days
Gummidipoondi peaks in November, while Hajipur peaks in December. Gummidipoondi logged 0% Severe days and 59.1% Good-or-Satisfactory days; Hajipur was 0.3% Severe and 36.6% Good-or-Satisfactory. Longest clean-air streaks: Gummidipoondi 49 days, Hajipur 36 days.
Year-over-year progress
Gummidipoondi has worsened by 8 AQI points (8.1%) from 2021 to 2024; Hajipur has worsened by 74 AQI points (74.7%) over the same window. The worst recorded day for Gummidipoondi reached AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22; Hajipur hit AQI 427 at Industrial Area (BSPCB) on 2024-11-12.
Station-level disparity
Gummidipoondi spans 1 CPCB stations with a 0-point spread (min 99, max 99); Hajipur spans 1 stations with a 0-point spread (min 149, max 149).
Verdict
🏆 Gummidipoondi has better air quality with an AQI of 18 compared to Hajipur's 231. That's a significant difference of 213 points.