Saharsa vs Tālcher
Side-by-side air quality comparison between Saharsa and Tālcher.
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 | Saharsa | Tālcher |
|---|---|---|
| PM2.5(µg/m³) | 99.90 | 66.60 |
| PM10(µg/m³) | 105.70 | 72.90 |
| NO₂(µg/m³) | 26.10 | 20.10 |
| SO₂(µg/m³) | 13.00 | 10.00 |
| O₃(µg/m³) | 62.00 | 60.00 |
| CO(µg/m³) | 670.00 | 471.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Saharsa averaged an AQI of 139 while Tālcher averaged 127 — a 12-point (9%) gap, with Saharsa the more polluted and Tālcher the cleaner of the two. On 484 days when both cities reported, Tālcher was cleaner on 440 of them; the average daily gap was 109 AQI points.
Seasonality & days
Saharsa peaks in January, while Tālcher peaks in December. Saharsa logged 1.4% Severe days and 28.4% Good-or-Satisfactory days; Tālcher was 0.2% Severe and 43.1% Good-or-Satisfactory. Longest clean-air streaks: Saharsa 20 days, Tālcher 44 days.
Year-over-year progress
Saharsa has improved by 139 AQI points (50%) from 2021 to 2024; Tālcher has improved by 63 AQI points (33.2%) over the same window. The worst recorded day for Saharsa reached AQI 454 at Police Line (BSPCB) on 2022-12-13; Tālcher hit AQI 414 at Talcher (OSPCB) on 2018-11-27.
Station-level disparity
Saharsa spans 1 CPCB stations with a 0-point spread (min 188, max 188); Tālcher spans 1 stations with a 0-point spread (min 132, max 132).
Verdict
🏆 Tālcher has better air quality with an AQI of 123 compared to Saharsa's 234. That's a significant difference of 111 points.