Jaisalmer vs Kolkata
Side-by-side air quality comparison between Jaisalmer and Kolkata.
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 | Jaisalmer | Kolkata |
|---|---|---|
| PM2.5(µg/m³) | 415.40 | 64.70 |
| PM10(µg/m³) | 2451.20 | 69.40 |
| NO₂(µg/m³) | 1.40 | 18.10 |
| SO₂(µg/m³) | 2.00 | 13.10 |
| O₃(µg/m³) | 51.00 | 86.00 |
| CO(µg/m³) | 103.00 | 428.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Jaisalmer averaged an AQI of 125 while Kolkata averaged 101 — a 24-point (24%) gap, with Jaisalmer the more polluted and Kolkata the cleaner of the two. On 353 days when both cities reported, Jaisalmer was cleaner on 177 of them; the average daily gap was 52 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Jaisalmer logged 0% Severe days and 37.699999999999996% Good-or-Satisfactory days; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Jaisalmer 18 days, Kolkata 75 days.
Year-over-year progress
Jaisalmer has improved by 6 AQI points (4.6%) from 2023 to 2024; Kolkata has improved by 76 AQI points (42.9%) over the same window. The worst recorded day for Jaisalmer reached AQI 374 at Sadar Bazar (RSPCB) on 2024-12-22; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Jaisalmer spans 1 CPCB stations with a 0-point spread (min 127, max 127); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).
Verdict
🏆 Kolkata has better air quality with an AQI of 117 compared to Jaisalmer's 500. That's a significant difference of 383 points.