Ajmer vs Ludhiana
Side-by-side air quality comparison between Ajmer and Ludhiana.
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 | Ludhiana |
|---|---|---|
| PM2.5(µg/m³) | 19.40 | 81.70 |
| PM10(µg/m³) | 41.90 | 109.20 |
| NO₂(µg/m³) | 4.60 | 40.40 |
| SO₂(µg/m³) | 4.30 | 15.20 |
| O₃(µg/m³) | 57.00 | 35.00 |
| CO(µg/m³) | 155.00 | 797.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Ajmer averaged an AQI of 112 while Ludhiana averaged 117 — a 5-point (4%) gap, with Ludhiana the more polluted and Ajmer the cleaner of the two. On 1365 days when both cities reported, Ajmer was cleaner on 719 of them; the average daily gap was 42 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Ajmer logged 0% Severe days and 54.300000000000004% Good-or-Satisfactory days; Ludhiana was 0.3% Severe and 53.599999999999994% Good-or-Satisfactory. Longest clean-air streaks: Ajmer 94 days, Ludhiana 53 days.
Year-over-year progress
Ajmer has improved by 22 AQI points (16.4%) from 2017 to 2022; Ludhiana has improved by 79 AQI points (40.3%) over the same window. The worst recorded day for Ajmer reached AQI 357 at Civil Lines (RSPCB) on 2021-03-31; Ludhiana hit AQI 488 at Punjab Agricultural University (PPCB) on 2018-06-14.
Station-level disparity
Ajmer spans 1 CPCB stations with a 0-point spread (min 102, max 102); Ludhiana spans 1 stations with a 0-point spread (min 118, max 118).
Verdict
🏆 Ajmer has better air quality with an AQI of 42 compared to Ludhiana's 173. That's a significant difference of 131 points.