Chapra vs Noida
Side-by-side air quality comparison between Chapra and Noida.
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 | Noida |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 67.50 |
| PM10(µg/m³) | 115.50 | 134.10 |
| NO₂(µg/m³) | 53.70 | 34.90 |
| SO₂(µg/m³) | 13.70 | 17.50 |
| O₃(µg/m³) | 10.00 | 48.00 |
| CO(µg/m³) | 858.00 | 554.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Noida averaged 182 — a 33-point (22%) gap, with Noida the more polluted and Chapra the cleaner of the two. On 642 days when both cities reported, Chapra was cleaner on 425 of them; the average daily gap was 78 AQI points.
Seasonality & days
Chapra peaks in January, while Noida peaks in November. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Noida was 8.9% Severe and 16.5% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Noida 14 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Noida has improved by 79 AQI points (30.3%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Noida hit AQI 500 at Sector-1 (UPPCB) on 2019-11-01.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Noida spans 4 stations with a 15-point spread (min 195, max 210).
Verdict
🏆 Noida has better air quality with an AQI of 126 compared to Chapra's 231. That's a significant difference of 105 points.