Aizawl vs Dewās
Side-by-side air quality comparison between Aizawl and Dewās.
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 | Dewās |
|---|---|---|
| PM2.5(µg/m³) | 28.80 | 32.60 |
| PM10(µg/m³) | 37.30 | 47.00 |
| NO₂(µg/m³) | 6.70 | 6.50 |
| SO₂(µg/m³) | 3.20 | 12.50 |
| O₃(µg/m³) | 49.00 | 74.00 |
| CO(µg/m³) | 250.00 | 243.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Aizawl averaged an AQI of 46 while Dewās averaged 98 — a 52-point (113%) gap, with Dewās the more polluted and Aizawl the cleaner of the two. On 1381 days when both cities reported, Aizawl was cleaner on 1265 of them; the average daily gap was 63 AQI points.
Seasonality & days
Aizawl peaks in March, while Dewās peaks in December. Aizawl logged 0% Severe days and 94.2% Good-or-Satisfactory days; Dewās was 0% Severe and 47.7% Good-or-Satisfactory. Longest clean-air streaks: Aizawl 76 days, Dewās 101 days.
Year-over-year progress
Aizawl has worsened by 16 AQI points (53.3%) from 2020 to 2024; Dewās has improved by 48 AQI points (32.9%) over the same window. The worst recorded day for Aizawl reached AQI 208 at Sikulpuikawn Aizawl (PCB) on 2021-01-20; Dewās hit AQI 327 at Bhopal Chauraha (MPPCB) on 2023-07-01.
Station-level disparity
Aizawl spans 1 CPCB stations with a 0-point spread (min 43, max 43); Dewās spans 1 stations with a 0-point spread (min 106, max 106).
Verdict
🏆 Aizawl has better air quality with an AQI of 48 compared to Dewās's 55.