Bettiah vs Hosur
Side-by-side air quality comparison between Bettiah and Hosur.
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 | Bettiah | Hosur |
|---|---|---|
| PM2.5(µg/m³) | 105.00 | 4.60 |
| PM10(µg/m³) | 120.60 | 5.40 |
| NO₂(µg/m³) | 51.70 | 8.40 |
| SO₂(µg/m³) | 12.10 | 4.40 |
| O₃(µg/m³) | 14.00 | 37.00 |
| CO(µg/m³) | 1646.00 | 143.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bettiah averaged an AQI of 127 while Hosur averaged 90 — a 37-point (41%) gap, with Bettiah the more polluted and Hosur the cleaner of the two. On 69 days when both cities reported, Hosur was cleaner on 50 of them; the average daily gap was 174 AQI points.
Seasonality & days
Bettiah peaks in November, while Hosur peaks in December. Bettiah logged 3.2% Severe days and 32.3% Good-or-Satisfactory days; Hosur was 0% Severe and 73.89999999999999% Good-or-Satisfactory. Longest clean-air streaks: Bettiah 20 days, Hosur 10 days.
Year-over-year progress
The worst recorded day for Bettiah reached AQI 470 at Kamalnath Nagar (BSPCB) on 2023-01-01; Hosur hit AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25.
Station-level disparity
Bettiah spans 1 CPCB stations with a 0-point spread (min 173, max 173); Hosur spans 1 stations with a 0-point spread (min 90, max 90).
Verdict
🏆 Hosur has better air quality with an AQI of 8 compared to Bettiah's 251. That's a significant difference of 243 points.