Hosur vs Tirunelveli
Side-by-side air quality comparison between Hosur and Tirunelveli.
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 | Tirunelveli |
|---|---|---|
| PM2.5(µg/m³) | 4.50 | 4.40 |
| PM10(µg/m³) | 5.00 | 5.20 |
| NO₂(µg/m³) | 7.50 | 5.50 |
| SO₂(µg/m³) | 4.10 | 1.80 |
| O₃(µg/m³) | 38.00 | 30.00 |
| CO(µg/m³) | 140.00 | 151.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2022, Hosur averaged an AQI of 90 while Tirunelveli averaged 30 — a 60-point (200%) gap, with Hosur the more polluted and Tirunelveli the cleaner of the two.
Seasonality & days
Hosur peaks in December, while Tirunelveli peaks in October. Hosur logged 0% Severe days and 73.89999999999999% Good-or-Satisfactory days; Tirunelveli was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Hosur 10 days, Tirunelveli 31 days.
Year-over-year progress
The worst recorded day for Hosur reached AQI 232 at SIPCOT Phase-1 (TNPCB) on 2022-10-25; Tirunelveli hit AQI 42 at Municipal Corporation Office (TNPCB) on 2024-10-30.
Station-level disparity
Hosur spans 1 CPCB stations with a 0-point spread (min 90, max 90); Tirunelveli spans 1 stations with a 0-point spread (min 30, max 30).
Verdict
🏆 Tirunelveli has better air quality with an AQI of 7 compared to Hosur's 8.