Chapra vs Imphal
Side-by-side air quality comparison between Chapra and Imphal.
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 | Imphal |
|---|---|---|
| PM2.5(µg/m³) | 99.00 | 45.80 |
| PM10(µg/m³) | 115.50 | 53.10 |
| NO₂(µg/m³) | 53.70 | 12.00 |
| SO₂(µg/m³) | 13.70 | 2.30 |
| O₃(µg/m³) | 10.00 | 33.00 |
| CO(µg/m³) | 858.00 | 414.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Imphal averaged 110 — a 39-point (35%) gap, with Chapra the more polluted and Imphal the cleaner of the two. On 456 days when both cities reported, Imphal was cleaner on 310 of them; the average daily gap was 87 AQI points.
Seasonality & days
Chapra peaks in January, while Imphal peaks in October. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Imphal was 1.1% Severe and 49.400000000000006% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Imphal 103 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Imphal has worsened by 23 AQI points (26.4%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Imphal hit AQI 500 at University Imphal (PCB) on 2024-10-11.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Imphal spans 2 stations with a 4-point spread (min 97, max 101).
Verdict
🏆 Imphal has better air quality with an AQI of 77 compared to Chapra's 231. That's a significant difference of 154 points.