Ajmer vs Prayagraj
Side-by-side air quality comparison between Ajmer and Prayagraj.
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 | Prayagraj |
|---|---|---|
| PM2.5(µg/m³) | 19.50 | 76.80 |
| PM10(µg/m³) | 44.80 | 93.80 |
| NO₂(µg/m³) | 3.60 | 59.00 |
| SO₂(µg/m³) | 4.10 | 16.00 |
| O₃(µg/m³) | 60.00 | 8.00 |
| CO(µg/m³) | 152.00 | 252.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Ajmer averaged an AQI of 112 while Prayagraj averaged 80 — a 32-point (40%) gap, with Ajmer the more polluted and Prayagraj the cleaner of the two. On 543 days when both cities reported, Ajmer was cleaner on 335 of them; the average daily gap was 51 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; Prayagraj was 0.2% Severe and 48% Good-or-Satisfactory. Longest clean-air streaks: Ajmer 94 days, Prayagraj 69 days.
Year-over-year progress
Ajmer has improved by 22 AQI points (16.4%) from 2017 to 2022; Prayagraj has improved by 42 AQI points (34.4%) over the same window. The worst recorded day for Ajmer reached AQI 357 at Civil Lines (RSPCB) on 2021-03-31; Prayagraj hit AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08.
Station-level disparity
Ajmer spans 1 CPCB stations with a 0-point spread (min 102, max 102); Prayagraj spans 3 stations with a 9-point spread (min 96, max 105).
Verdict
🏆 Ajmer has better air quality with an AQI of 45 compared to Prayagraj's 156. That's a significant difference of 111 points.