Karur vs Saharsa
Side-by-side air quality comparison between Karur and Saharsa.
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 | Saharsa |
|---|---|---|
| PM2.5(µg/m³) | 3.80 | 99.90 |
| PM10(µg/m³) | 4.20 | 105.70 |
| NO₂(µg/m³) | 6.80 | 26.10 |
| SO₂(µg/m³) | 3.00 | 13.00 |
| O₃(µg/m³) | 38.00 | 62.00 |
| CO(µg/m³) | 131.00 | 670.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Karur averaged an AQI of 71 while Saharsa averaged 139 — a 68-point (96%) gap, with Saharsa the more polluted and Karur the cleaner of the two. On 65 days when both cities reported, Karur was cleaner on 58 of them; the average daily gap was 106 AQI points.
Seasonality & days
Karur peaks in December, while Saharsa peaks in January. Karur logged 0% Severe days and 80.3% Good-or-Satisfactory days; Saharsa was 1.4% Severe and 28.4% Good-or-Satisfactory. Longest clean-air streaks: Karur 34 days, Saharsa 20 days.
Year-over-year progress
The worst recorded day for Karur reached AQI 149 at Kamadenu Nagar (TNPCB) on 2024-11-26; Saharsa hit AQI 454 at Police Line (BSPCB) on 2022-12-13.
Station-level disparity
Karur spans 1 CPCB stations with a 0-point spread (min 71, max 71); Saharsa spans 1 stations with a 0-point spread (min 188, max 188).
Verdict
🏆 Karur has better air quality with an AQI of 6 compared to Saharsa's 234. That's a significant difference of 228 points.