Karur vs Motihari
Side-by-side air quality comparison between Karur and Motihari.
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 | Karur | Motihari |
|---|---|---|
| PM2.5(µg/m³) | 3.80 | 152.70 |
| PM10(µg/m³) | 4.20 | 170.90 |
| NO₂(µg/m³) | 6.80 | 59.80 |
| SO₂(µg/m³) | 3.00 | 22.90 |
| O₃(µg/m³) | 38.00 | 45.00 |
| CO(µg/m³) | 131.00 | 1174.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karur averaged an AQI of 71 while Motihari averaged 116 — a 45-point (63%) gap, with Motihari the more polluted and Karur the cleaner of the two. On 64 days when both cities reported, Karur was cleaner on 61 of them; the average daily gap was 75 AQI points.
Seasonality & days
Karur peaks in December, while Motihari peaks in November. Karur logged 0% Severe days and 80.3% Good-or-Satisfactory days; Motihari was 1.2% Severe and 39.1% Good-or-Satisfactory. Longest clean-air streaks: Karur 34 days, Motihari 26 days.
Year-over-year progress
The worst recorded day for Karur reached AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26; Motihari hit AQI 448 at Gandak Colony (BSPCB) on 2022-11-17.
Station-level disparity
Karur spans 1 CPCB stations with a 0-point spread (min 71, max 71); Motihari spans 1 stations with a 0-point spread (min 153, max 153).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Motihari's 326. That's a significant difference of 320 points.