Aurangabad vs Kolkata
Side-by-side air quality comparison between Aurangabad 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 | Aurangabad | Kolkata |
|---|---|---|
| PM2.5(µg/m³) | 17.90 | 68.70 |
| PM10(µg/m³) | 31.20 | 72.60 |
| NO₂(µg/m³) | 12.00 | 22.20 |
| SO₂(µg/m³) | 13.60 | 11.50 |
| O₃(µg/m³) | 39.00 | 55.00 |
| CO(µg/m³) | 154.00 | 364.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Aurangabad averaged an AQI of 99 while Kolkata averaged 101 — a 2-point (2%) gap, with Kolkata the more polluted and Aurangabad the cleaner of the two. On 1735 days when both cities reported, Aurangabad was cleaner on 1097 of them; the average daily gap was 77 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Aurangabad logged 0.1% Severe days and 58.3% Good-or-Satisfactory days; Kolkata was 1% Severe and 47.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Aurangabad 46 days, Kolkata 75 days.
Year-over-year progress
Aurangabad has improved by 41 AQI points (29.3%) from 2016 to 2024; Kolkata has improved by 76 AQI points (42.9%) over the same window. The worst recorded day for Aurangabad reached AQI 436 at More Chowk Waluj (MPCB) on 2024-09-16; Kolkata hit AQI 453 at Rabindra Bharati University (WBPCB) on 2019-01-23.
Station-level disparity
Aurangabad spans 4 CPCB stations with a 87-point spread (min 91, max 178); Kolkata spans 7 stations with a 56-point spread (min 95, max 151).
Verdict
🏆 Aurangabad has better air quality with an AQI of 31 compared to Kolkata's 130. That's a significant difference of 99 points.