Aizawl vs Arrah
Side-by-side air quality comparison between Aizawl and Arrah.
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 | Arrah |
|---|---|---|
| PM2.5(µg/m³) | 28.80 | 99.00 |
| PM10(µg/m³) | 37.30 | 115.50 |
| NO₂(µg/m³) | 6.70 | 53.70 |
| SO₂(µg/m³) | 3.20 | 13.70 |
| O₃(µg/m³) | 49.00 | 10.00 |
| CO(µg/m³) | 250.00 | 944.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Aizawl averaged an AQI of 46 while Arrah averaged 123 — a 77-point (167%) gap, with Arrah the more polluted and Aizawl the cleaner of the two. On 769 days when both cities reported, Aizawl was cleaner on 739 of them; the average daily gap was 120 AQI points.
Seasonality & days
Aizawl peaks in March, while Arrah peaks in January. Aizawl logged 0% Severe days and 94.2% Good-or-Satisfactory days; Arrah was 0.2% Severe and 32.3% Good-or-Satisfactory. Longest clean-air streaks: Aizawl 76 days, Arrah 11 days.
Year-over-year progress
Aizawl has worsened by 16 AQI points (53.3%) from 2020 to 2024; Arrah has improved by 175 AQI points (58.7%) over the same window. The worst recorded day for Aizawl reached AQI 208 at Sikulpuikawn Aizawl (PCB) on 2021-01-20; Arrah hit AQI 420 at New DM Office (BSPCB) on 2021-12-21.
Station-level disparity
Aizawl spans 1 CPCB stations with a 0-point spread (min 43, max 43); Arrah spans 1 stations with a 0-point spread (min 162, max 162).
Verdict
🏆 Aizawl has better air quality with an AQI of 48 compared to Arrah's 231. That's a significant difference of 183 points.