Begusarai vs Gummidipoondi
Side-by-side air quality comparison between Begusarai and Gummidipoondi.
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 | Begusarai | Gummidipoondi |
|---|---|---|
| PM2.5(µg/m³) | 88.90 | 10.60 |
| PM10(µg/m³) | 101.70 | 11.90 |
| NO₂(µg/m³) | 52.20 | 12.70 |
| SO₂(µg/m³) | 16.70 | 6.00 |
| O₃(µg/m³) | 23.00 | 51.00 |
| CO(µg/m³) | 695.00 | 298.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Begusarai averaged an AQI of 128 while Gummidipoondi averaged 107 — a 21-point (20%) gap, with Begusarai the more polluted and Gummidipoondi the cleaner of the two. On 300 days when both cities reported, Gummidipoondi was cleaner on 210 of them; the average daily gap was 111 AQI points.
Seasonality & days
Begusarai peaks in January, while Gummidipoondi peaks in November. Begusarai logged 8.7% Severe days and 20.8% Good-or-Satisfactory days; Gummidipoondi was 0% Severe and 59.1% Good-or-Satisfactory. Longest clean-air streaks: Begusarai 14 days, Gummidipoondi 49 days.
Year-over-year progress
Begusarai has improved by 137 AQI points (51.7%) from 2023 to 2024; Gummidipoondi has worsened by 8 AQI points (8.1%) over the same window. The worst recorded day for Begusarai reached AQI 469 at Lohiyanagar (BSPCB) on 2023-01-14; Gummidipoondi hit AQI 326 at Anthoni Pillai Nagar (TNPCB) on 2023-12-22.
Station-level disparity
Begusarai spans 1 CPCB stations with a 0-point spread (min 213, max 213); Gummidipoondi spans 1 stations with a 0-point spread (min 99, max 99).
Verdict
🏆 Gummidipoondi has better air quality with an AQI of 18 compared to Begusarai's 196. That's a significant difference of 178 points.