Hosur vs Varanasi
Side-by-side air quality comparison between Hosur and Varanasi.
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 | Varanasi |
|---|---|---|
| PM2.5(µg/m³) | 4.50 | 43.80 |
| PM10(µg/m³) | 5.00 | 52.90 |
| NO₂(µg/m³) | 7.50 | 28.20 |
| SO₂(µg/m³) | 4.10 | 36.90 |
| O₃(µg/m³) | 38.00 | 45.00 |
| CO(µg/m³) | 140.00 | 440.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Hosur averaged an AQI of 90 while Varanasi averaged 56 — a 34-point (61%) gap, with Hosur the more polluted and Varanasi the cleaner of the two. On 96 days when both cities reported, Hosur was cleaner on 57 of them; the average daily gap was 36 AQI points.
Seasonality & days
Hosur peaks in December, while Varanasi peaks in January. Hosur logged 0% Severe days and 73.89999999999999% Good-or-Satisfactory days; Varanasi was 2.8% Severe and 36% Good-or-Satisfactory. Longest clean-air streaks: Hosur 10 days, Varanasi 87 days.
Year-over-year progress
The worst recorded day for Hosur reached AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25; Varanasi hit AQI 500 at Ardhali Bazar (UPPCB) on 2017-07-11.
Station-level disparity
Hosur spans 1 CPCB stations with a 0-point spread (min 90, max 90); Varanasi spans 4 stations with a 94-point spread (min 71, max 165).
Verdict
🏆 Hosur has better air quality with an AQI of 8 compared to Varanasi's 74. That's a significant difference of 66 points.