Aizawl vs Karur
Side-by-side air quality comparison between Aizawl and Karur.
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 | Karur |
|---|---|---|
| PM2.5(µg/m³) | 23.70 | 3.80 |
| PM10(µg/m³) | 34.10 | 4.20 |
| NO₂(µg/m³) | 4.90 | 6.80 |
| SO₂(µg/m³) | 3.20 | 3.00 |
| O₃(µg/m³) | 63.00 | 38.00 |
| CO(µg/m³) | 238.00 | 131.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Aizawl averaged an AQI of 46 while Karur averaged 71 — a 25-point (54%) gap, with Karur the more polluted and Aizawl the cleaner of the two. On 69 days when both cities reported, Aizawl was cleaner on 56 of them; the average daily gap was 44 AQI points.
Seasonality & days
Aizawl peaks in March, while Karur peaks in December. Aizawl logged 0% Severe days and 94.2% Good-or-Satisfactory days; Karur was 0% Severe and 80.3% Good-or-Satisfactory. Longest clean-air streaks: Aizawl 76 days, Karur 34 days.
Year-over-year progress
The worst recorded day for Aizawl reached AQI 208 at Sikulpuikawn Aizawl (PCB) on 2021-01-20; Karur hit AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26.
Station-level disparity
Aizawl spans 1 CPCB stations with a 0-point spread (min 43, max 43); Karur spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Aizawl's 40.