Meerut vs Siwan
Side-by-side air quality comparison between Meerut 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 | Meerut | Siwan |
|---|---|---|
| PM2.5(µg/m³) | 69.60 | 114.60 |
| PM10(µg/m³) | 96.40 | 125.70 |
| NO₂(µg/m³) | 27.40 | 44.50 |
| SO₂(µg/m³) | 11.00 | 15.40 |
| O₃(µg/m³) | 65.00 | 54.00 |
| CO(µg/m³) | 590.00 | 761.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Meerut averaged an AQI of 144 while Siwan averaged 148 — a 4-point (3%) gap, with Siwan the more polluted and Meerut the cleaner of the two. On 490 days when both cities reported, Siwan was cleaner on 282 of them; the average daily gap was 77 AQI points.
Seasonality & days
Meerut peaks in November, while Siwan peaks in January. Meerut logged 2% Severe days and 22.299999999999997% Good-or-Satisfactory days; Siwan was 5.2% Severe and 17.7% Good-or-Satisfactory. Longest clean-air streaks: Meerut 25 days, Siwan 13 days.
Year-over-year progress
Meerut has improved by 116 AQI points (44.6%) from 2019 to 2024; Siwan has improved by 184 AQI points (55.4%) over the same window. The worst recorded day for Meerut reached AQI 490 at Pallavpuram Phase 2 (UPPCB) on 2020-11-05; Siwan hit AQI 488 at Chitragupta Nagar (BSPCB) on 2022-12-30.
Station-level disparity
Meerut spans 3 CPCB stations with a 13-point spread (min 172, max 185); Siwan spans 1 stations with a 0-point spread (min 197, max 197).
Verdict
🏆 Meerut has better air quality with an AQI of 133 compared to Siwan's 282. That's a significant difference of 149 points.