Ajmer vs Ariyalur
Side-by-side air quality comparison between Ajmer 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 | Ajmer | Ariyalur |
|---|---|---|
| PM2.5(µg/m³) | 19.50 | 6.90 |
| PM10(µg/m³) | 44.80 | 8.80 |
| NO₂(µg/m³) | 3.60 | 8.10 |
| SO₂(µg/m³) | 4.10 | 5.20 |
| O₃(µg/m³) | 60.00 | 41.00 |
| CO(µg/m³) | 152.00 | 133.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Ajmer averaged an AQI of 112 while Ariyalur averaged 46 — a 66-point (143%) gap, with Ajmer the more polluted and Ariyalur the cleaner of the two. On 11 days when both cities reported, Ariyalur was cleaner on 8 of them; the average daily gap was 72 AQI points.
Seasonality & days
Ajmer peaks in November, while Ariyalur peaks in March. Ajmer logged 0% Severe days and 54.300000000000004% Good-or-Satisfactory days; Ariyalur was 0% Severe and 93.8% Good-or-Satisfactory. Longest clean-air streaks: Ajmer 94 days, Ariyalur 57 days.
Year-over-year progress
Ajmer has improved by 22 AQI points (16.4%) from 2017 to 2022; Ariyalur has improved by 35 AQI points (43.2%) over the same window. The worst recorded day for Ajmer reached AQI 357 at Civil Lines (RSPCB) on 2021-03-31; Ariyalur hit AQI 221 at Keelapalur (TNPCB) on 2024-04-07.
Station-level disparity
Ajmer spans 1 CPCB stations with a 0-point spread (min 102, max 102); Ariyalur spans 1 stations with a 0-point spread (min 51, max 51).
Verdict
🏆 Ariyalur has better air quality with an AQI of 12 compared to Ajmer's 45.