Delhi vs Ratlam
Side-by-side air quality comparison between Delhi and Ratlam.
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 | Delhi | Ratlam |
|---|---|---|
| PM2.5(µg/m³) | 79.90 | 28.60 |
| PM10(µg/m³) | 152.70 | 45.50 |
| NO₂(µg/m³) | 44.80 | 9.50 |
| SO₂(µg/m³) | 32.00 | 16.70 |
| O₃(µg/m³) | 47.00 | 45.00 |
| CO(µg/m³) | 545.00 | 208.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Delhi averaged an AQI of 210 while Ratlam averaged 113 — a 97-point (86%) gap, with Delhi the more polluted and Ratlam the cleaner of the two. On 1922 days when both cities reported, Ratlam was cleaner on 1914 of them; the average daily gap was 192 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Delhi logged 18.7% Severe days and 1.7% Good-or-Satisfactory days; Ratlam was 0% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Delhi 3 days, Ratlam 59 days.
Year-over-year progress
Delhi has improved by 42 AQI points (16.7%) from 2016 to 2024; Ratlam has improved by 19 AQI points (14.4%) over the same window. The worst recorded day for Delhi reached AQI 500 at Ashok Vihar (DPCC) on 2024-11-18; Ratlam hit AQI 302 at Shasthri Nagar Ratlam (Lab) on 2020-11-11.
Station-level disparity
Delhi spans 39 CPCB stations with a 84-point spread (min 178, max 262); Ratlam spans 1 stations with a 0-point spread (min 103, max 103).
Verdict
🏆 Ratlam has better air quality with an AQI of 48 compared to Delhi's 167. That's a significant difference of 119 points.