Chapra vs Ratlam
Side-by-side air quality comparison between Chapra 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 | Chapra | Ratlam |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 31.00 |
| PM10(µg/m³) | 115.50 | 47.60 |
| NO₂(µg/m³) | 53.70 | 8.60 |
| SO₂(µg/m³) | 13.70 | 15.80 |
| O₃(µg/m³) | 10.00 | 55.00 |
| CO(µg/m³) | 858.00 | 205.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Ratlam averaged 113 — a 36-point (32%) gap, with Chapra the more polluted and Ratlam the cleaner of the two. On 899 days when both cities reported, Ratlam was cleaner on 732 of them; the average daily gap was 107 AQI points.
Seasonality & days
Chapra peaks in January, while Ratlam peaks in November. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Ratlam was 0% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Ratlam 59 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Ratlam has improved by 19 AQI points (14.4%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Ratlam hit AQI 302 at Shasthri Nagar Ratlam (Lab) on 2020-11-11.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Ratlam spans 1 stations with a 0-point spread (min 103, max 103).
Verdict
🏆 Ratlam has better air quality with an AQI of 53 compared to Chapra's 231. That's a significant difference of 178 points.