Ajmer vs Nagapattinam
Side-by-side air quality comparison between Ajmer and Nagapattinam.
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 | Nagapattinam |
|---|---|---|
| CO(ppb) | 303.04 | 174.00 |
| NO2(ppb) | 6.36 | 1.50 |
| O3(ppb) | 9.02 | 100.00 |
| PM10(µg/m³) | 37.02 | 16.20 |
| PM2.5(µg/m³) | 16.90 | 11.50 |
| SO2(ppb) | 4.71 | 3.10 |
| NH3(ppb) | 47.91 | — |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Ajmer averaged an AQI of 112 while Nagapattinam averaged 60 — a 52-point (87%) gap, with Ajmer the more polluted and Nagapattinam the cleaner of the two.
Seasonality & days
Both cities see their worst air in November on average. Ajmer logged 0% Severe days and 54.300000000000004% Good-or-Satisfactory days; Nagapattinam was 0% Severe and 91.5% Good-or-Satisfactory. Longest clean-air streaks: Ajmer 94 days, Nagapattinam 8 days.
Year-over-year progress
The worst recorded day for Ajmer reached AQI 357 at Civil Lines (RSPCB) on 2021-03-31; Nagapattinam hit AQI 113 at Velippalayam (TNPCB) on 2024-12-16.
Station-level disparity
Ajmer spans 1 CPCB stations with a 0-point spread (min 102, max 102); Nagapattinam spans 1 stations with a 0-point spread (min 60, max 60).
Verdict
🏆 Nagapattinam has better air quality with an AQI of 19 compared to Ajmer's 37.