Aizawl vs Ariyalur
Side-by-side air quality comparison between Aizawl and Ariyalur.
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 | Ariyalur |
|---|---|---|
| PM2.5(µg/m³) | 23.70 | 6.80 |
| PM10(µg/m³) | 34.10 | 8.30 |
| NO₂(µg/m³) | 4.90 | 7.50 |
| SO₂(µg/m³) | 3.20 | 6.50 |
| O₃(µg/m³) | 63.00 | 43.00 |
| CO(µg/m³) | 238.00 | 133.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Aizawl averaged an AQI of 46 while Ariyalur averaged 46 — a 0-point (0%) gap, with Ariyalur the more polluted and Aizawl the cleaner of the two. On 533 days when both cities reported, Aizawl was cleaner on 288 of them; the average daily gap was 27 AQI points.
Seasonality & days
Both cities see their worst air in March on average. Aizawl logged 0% Severe days and 94.2% Good-or-Satisfactory days; Ariyalur was 0% Severe and 93.8% Good-or-Satisfactory. Longest clean-air streaks: Aizawl 76 days, Ariyalur 57 days.
Year-over-year progress
Aizawl has worsened by 16 AQI points (53.3%) from 2020 to 2024; Ariyalur has improved by 35 AQI points (43.2%) over the same window. The worst recorded day for Aizawl reached AQI 208 at Sikulpuikawn Aizawl (PCB) on 2021-01-20; Ariyalur hit AQI 221 at Keelapalur (TNPCB) on 2024-04-07.
Station-level disparity
Aizawl spans 1 CPCB stations with a 0-point spread (min 43, max 43); Ariyalur spans 1 stations with a 0-point spread (min 51, max 51).
Verdict
🏆 Ariyalur has better air quality with an AQI of 11 compared to Aizawl's 40.