Chapra vs Prayagraj
Side-by-side air quality comparison between Chapra and Prayagraj.
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 | Prayagraj |
|---|---|---|
| PM2.5(µg/m³) | 102.90 | 61.00 |
| PM10(µg/m³) | 117.10 | 73.80 |
| NO₂(µg/m³) | 42.70 | 45.90 |
| SO₂(µg/m³) | 15.30 | 15.60 |
| O₃(µg/m³) | 46.00 | 36.00 |
| CO(µg/m³) | 805.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Prayagraj averaged 80 — a 69-point (86%) gap, with Chapra the more polluted and Prayagraj the cleaner of the two. On 642 days when both cities reported, Prayagraj was cleaner on 491 of them; the average daily gap was 82 AQI points.
Seasonality & days
Chapra peaks in January, while Prayagraj peaks in November. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Prayagraj was 0.2% Severe and 48% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Prayagraj 69 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Prayagraj has improved by 42 AQI points (34.4%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Prayagraj hit AQI 416 at Nagar Nigam (UPPCB) on 2021-11-08.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Prayagraj spans 3 stations with a 9-point spread (min 96, max 105).
Verdict
🏆 Prayagraj has better air quality with an AQI of 104 compared to Chapra's 244. That's a significant difference of 140 points.