Aizawl vs Kalyān
Side-by-side air quality comparison between Aizawl and Kalyān.
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 | Kalyān |
|---|---|---|
| PM2.5(µg/m³) | 23.70 | 23.70 |
| PM10(µg/m³) | 34.10 | 40.90 |
| NO₂(µg/m³) | 4.90 | 20.60 |
| SO₂(µg/m³) | 3.20 | 23.00 |
| O₃(µg/m³) | 63.00 | 23.00 |
| CO(µg/m³) | 238.00 | 186.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Aizawl averaged an AQI of 46 while Kalyān averaged 95 — a 49-point (107%) gap, with Kalyān the more polluted and Aizawl the cleaner of the two. On 1027 days when both cities reported, Aizawl was cleaner on 1004 of them; the average daily gap was 81 AQI points.
Seasonality & days
Aizawl peaks in March, while Kalyān peaks in January. Aizawl logged 0% Severe days and 94.2% Good-or-Satisfactory days; Kalyān was 0.1% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Aizawl 76 days, Kalyān 78 days.
Year-over-year progress
Aizawl has worsened by 16 AQI points (53.3%) from 2020 to 2024; Kalyān has improved by 4 AQI points (4%) over the same window. The worst recorded day for Aizawl reached AQI 208 at Sikulpuikawn Aizawl (PCB) on 2021-01-20; Kalyān hit AQI 414 at Khadakpada (MPCB) on 2022-01-24.
Station-level disparity
Aizawl spans 1 CPCB stations with a 0-point spread (min 43, max 43); Kalyān spans 2 stations with a 18-point spread (min 98, max 116).
Verdict
🏆 Aizawl has better air quality with an AQI of 40 compared to Kalyān's 41.