Imphal vs Karur
Side-by-side air quality comparison between Imphal and Karur.
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 | Imphal | Karur |
|---|---|---|
| PM2.5(µg/m³) | 45.80 | 3.80 |
| PM10(µg/m³) | 53.10 | 4.40 |
| NO₂(µg/m³) | 12.00 | 7.30 |
| SO₂(µg/m³) | 2.30 | 2.70 |
| O₃(µg/m³) | 33.00 | 37.00 |
| CO(µg/m³) | 414.00 | 117.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Imphal averaged an AQI of 110 while Karur averaged 71 — a 39-point (55%) gap, with Imphal the more polluted and Karur the cleaner of the two. On 42 days when both cities reported, Karur was cleaner on 38 of them; the average daily gap was 71 AQI points.
Seasonality & days
Imphal peaks in October, while Karur peaks in December. Imphal logged 1.1% Severe days and 49.400000000000006% Good-or-Satisfactory days; Karur was 0% Severe and 80.3% Good-or-Satisfactory. Longest clean-air streaks: Imphal 103 days, Karur 34 days.
Year-over-year progress
The worst recorded day for Imphal reached AQI 500 at University Imphal (PCB) on 2024-10-11; Karur hit AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26.
Station-level disparity
Imphal spans 2 CPCB stations with a 4-point spread (min 97, max 101); Karur spans 1 stations with a 0-point spread (min 71, max 71).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Imphal's 77. That's a significant difference of 71 points.