Aizawl vs Ulhasnagar
Side-by-side air quality comparison between Aizawl and Ulhasnagar.
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 | Ulhasnagar |
|---|---|---|
| PM2.5(µg/m³) | 30.30 | 22.10 |
| PM10(µg/m³) | 39.70 | 40.40 |
| NO₂(µg/m³) | 8.00 | 23.10 |
| SO₂(µg/m³) | 3.30 | 21.70 |
| O₃(µg/m³) | 48.00 | 19.00 |
| CO(µg/m³) | 254.00 | 208.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Aizawl averaged an AQI of 46 while Ulhasnagar averaged 117 — a 71-point (154%) gap, with Ulhasnagar the more polluted and Aizawl the cleaner of the two. On 433 days when both cities reported, Aizawl was cleaner on 419 of them; the average daily gap was 86 AQI points.
Seasonality & days
Aizawl peaks in March, while Ulhasnagar peaks in January. Aizawl logged 0% Severe days and 94.2% Good-or-Satisfactory days; Ulhasnagar was 0% Severe and 46.9% Good-or-Satisfactory. Longest clean-air streaks: Aizawl 76 days, Ulhasnagar 74 days.
Year-over-year progress
Aizawl has worsened by 16 AQI points (53.3%) from 2020 to 2024; Ulhasnagar has improved by 10 AQI points (7.9%) over the same window. The worst recorded day for Aizawl reached AQI 208 at Sikulpuikawn Aizawl (PCB) on 2021-01-20; Ulhasnagar hit AQI 319 at Sidhi Vinayak Nagar (MPCB) on 2023-11-13.
Station-level disparity
Aizawl spans 1 CPCB stations with a 0-point spread (min 43, max 43); Ulhasnagar spans 1 stations with a 0-point spread (min 120, max 120).
Verdict
🏆 Ulhasnagar has better air quality with an AQI of 40 compared to Aizawl's 51.