Hāveri vs Siwan
Side-by-side air quality comparison between Hāveri and Siwan.
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 | Hāveri | Siwan |
|---|---|---|
| PM2.5(µg/m³) | 7.00 | 112.50 |
| PM10(µg/m³) | 9.40 | 127.60 |
| NO₂(µg/m³) | 8.10 | 56.00 |
| SO₂(µg/m³) | 1.00 | 14.90 |
| O₃(µg/m³) | 30.00 | 15.00 |
| CO(µg/m³) | 119.00 | 865.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hāveri averaged an AQI of 66 while Siwan averaged 148 — a 82-point (124%) gap, with Siwan the more polluted and Hāveri the cleaner of the two. On 571 days when both cities reported, Hāveri was cleaner on 548 of them; the average daily gap was 121 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Hāveri logged 0% Severe days and 86.69999999999999% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Hāveri 76 days, Siwan 13 days.
Year-over-year progress
Hāveri has improved by 1 AQI points (1.5%) from 2022 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Hāveri reached AQI 262 at Ashwini Nagar (KSPCB) on 2023-11-17; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Hāveri spans 1 CPCB stations with a 0-point spread (min 68, max 68); Siwan spans 1 stations with a 0-point spread (min 197, max 197).
Verdict
🏆 Hāveri has better air quality with an AQI of 12 compared to Siwan's 275. That's a significant difference of 263 points.