Aizawl vs Bulandshahr
Side-by-side air quality comparison between Aizawl and Bulandshahr.
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 | Aizawl | Bulandshahr |
|---|---|---|
| PM2.5(µg/m³) | 23.70 | 71.70 |
| PM10(µg/m³) | 34.10 | 108.50 |
| NO₂(µg/m³) | 4.90 | 30.30 |
| SO₂(µg/m³) | 3.20 | 10.30 |
| O₃(µg/m³) | 63.00 | 60.00 |
| CO(µg/m³) | 238.00 | 488.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Aizawl averaged an AQI of 46 while Bulandshahr averaged 142 — a 96-point (209%) gap, with Bulandshahr the more polluted and Aizawl the cleaner of the two. On 1467 days when both cities reported, Aizawl was cleaner on 1416 of them; the average daily gap was 130 AQI points.
Seasonality & days
Aizawl peaks in March, while Bulandshahr peaks in November. Aizawl logged 0% Severe days and 94.2% Good-or-Satisfactory days; Bulandshahr was 3.2% Severe and 27.099999999999998% Good-or-Satisfactory. Longest clean-air streaks: Aizawl 76 days, Bulandshahr 41 days.
Year-over-year progress
Aizawl has worsened by 16 AQI points (53.3%) from 2020 to 2024; Bulandshahr has improved by 82 AQI points (36.6%) over the same window. The worst recorded day for Aizawl reached AQI 208 at Sikulpuikawn Aizawl (PCB) on 2021-01-20; Bulandshahr hit AQI 500 at Yamunapuram (UPPCB) on 2018-06-13.
Station-level disparity
Aizawl spans 1 CPCB stations with a 0-point spread (min 43, max 43); Bulandshahr spans 1 stations with a 0-point spread (min 180, max 180).
Verdict
🏆 Aizawl has better air quality with an AQI of 40 compared to Bulandshahr's 140. That's a significant difference of 100 points.