Noida vs Ratlam
Side-by-side air quality comparison between Noida 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 | Noida | Ratlam |
|---|---|---|
| PM2.5(µg/m³) | 67.50 | 31.00 |
| PM10(µg/m³) | 134.10 | 47.60 |
| NO₂(µg/m³) | 34.90 | 8.60 |
| SO₂(µg/m³) | 17.50 | 15.80 |
| O₃(µg/m³) | 48.00 | 55.00 |
| CO(µg/m³) | 554.00 | 205.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Noida averaged an AQI of 182 while Ratlam averaged 113 — a 69-point (61%) gap, with Noida the more polluted and Ratlam the cleaner of the two. On 1589 days when both cities reported, Ratlam was cleaner on 1493 of them; the average daily gap was 123 AQI points.
Seasonality & days
Both cities see their worst air in November on average. Noida logged 8.9% Severe days and 16.5% Good-or-Satisfactory days; Ratlam was 0% Severe and 46.4% Good-or-Satisfactory. Longest clean-air streaks: Noida 14 days, Ratlam 59 days.
Year-over-year progress
Noida has improved by 79 AQI points (30.3%) from 2017 to 2024; Ratlam has improved by 19 AQI points (14.4%) over the same window. The worst recorded day for Noida reached AQI 500 at Sector-1 (UPPCB) on 2019-11-01; Ratlam hit AQI 302 at Shasthri Nagar Ratlam (Lab) on 2020-11-11.
Station-level disparity
Noida spans 4 CPCB stations with a 15-point spread (min 195, max 210); 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 Noida's 126. That's a significant difference of 73 points.