Hosur vs Samastipur
Side-by-side air quality comparison between Hosur and Samastipur.
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 | Hosur | Samastipur |
|---|---|---|
| PM2.5(µg/m³) | 4.50 | 118.70 |
| PM10(µg/m³) | 5.00 | 131.30 |
| NO₂(µg/m³) | 7.50 | 48.30 |
| SO₂(µg/m³) | 4.10 | 20.10 |
| O₃(µg/m³) | 38.00 | 57.00 |
| CO(µg/m³) | 140.00 | 732.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Hosur averaged an AQI of 90 while Samastipur averaged 134 — a 44-point (49%) gap, with Samastipur the more polluted and Hosur the cleaner of the two. On 81 days when both cities reported, Hosur was cleaner on 72 of them; the average daily gap was 161 AQI points.
Seasonality & days
Hosur peaks in December, while Samastipur peaks in January. Hosur logged 0% Severe days and 73.89999999999999% Good-or-Satisfactory days; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Hosur 10 days, Samastipur 9 days.
Year-over-year progress
The worst recorded day for Hosur reached AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Hosur spans 1 CPCB stations with a 0-point spread (min 90, max 90); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).
Verdict
🏆 Hosur has better air quality with an AQI of 8 compared to Samastipur's 296. That's a significant difference of 288 points.