Begusarai vs Coimbatore
Side-by-side air quality comparison between Begusarai and Coimbatore.
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 | Coimbatore |
|---|---|---|
| PM2.5(µg/m³) | 88.90 | 2.50 |
| PM10(µg/m³) | 101.70 | 3.00 |
| NO₂(µg/m³) | 52.20 | 4.60 |
| SO₂(µg/m³) | 16.70 | 2.00 |
| O₃(µg/m³) | 23.00 | 40.00 |
| CO(µg/m³) | 695.00 | 163.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Begusarai averaged an AQI of 128 while Coimbatore averaged 66 — a 62-point (94%) gap, with Begusarai the more polluted and Coimbatore the cleaner of the two. On 126 days when both cities reported, Coimbatore was cleaner on 87 of them; the average daily gap was 70 AQI points.
Seasonality & days
Begusarai peaks in January, while Coimbatore peaks in November. Begusarai logged 8.7% Severe days and 20.8% Good-or-Satisfactory days; Coimbatore was 0% Severe and 90.5% Good-or-Satisfactory. Longest clean-air streaks: Begusarai 14 days, Coimbatore 32 days.
Year-over-year progress
Begusarai has improved by 137 AQI points (51.7%) from 2023 to 2024; Coimbatore has improved by 5 AQI points (7%) over the same window. The worst recorded day for Begusarai reached AQI 469 at Lohiyanagar (BSPCB) on 2023-01-14; Coimbatore hit AQI 279 at SIDCO Kurichi (TNPCB) on 2024-09-28.
Station-level disparity
Begusarai spans 1 CPCB stations with a 0-point spread (min 213, max 213); Coimbatore spans 2 stations with a 1-point spread (min 63, max 64).
Verdict
🏆 Coimbatore has better air quality with an AQI of 4 compared to Begusarai's 196. That's a significant difference of 192 points.