Hisar vs Tirunelveli
Side-by-side air quality comparison between Hisar 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 | Hisar | Tirunelveli |
|---|---|---|
| PM2.5(µg/m³) | 65.20 | 2.00 |
| PM10(µg/m³) | 421.90 | 2.70 |
| NO₂(µg/m³) | 0.00 | 1.10 |
| SO₂(µg/m³) | 5.60 | 0.60 |
| O₃(µg/m³) | 156.00 | 52.00 |
| CO(µg/m³) | 230.00 | 101.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Hisar averaged an AQI of 136 while Tirunelveli averaged 30 — a 106-point (353%) gap, with Hisar the more polluted and Tirunelveli the cleaner of the two. On 99 days when both cities reported, Tirunelveli was cleaner on 97 of them; the average daily gap was 107 AQI points.
Seasonality & days
Hisar peaks in November, while Tirunelveli peaks in October. Hisar logged 1.6% Severe days and 29.700000000000003% Good-or-Satisfactory days; Tirunelveli was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Hisar 34 days, Tirunelveli 31 days.
Year-over-year progress
The worst recorded day for Hisar reached AQI 490 at Urban Estate-II (HSPCB) on 2019-11-02; Tirunelveli hit AQI 42 at Municipal Corporation Office (TNPCB) on 2024-10-30.
Station-level disparity
Hisar spans 1 CPCB stations with a 0-point spread (min 168, max 168); Tirunelveli spans 1 stations with a 0-point spread (min 30, max 30).
Verdict
🏆 Tirunelveli has better air quality with an AQI of 3 compared to Hisar's 390. That's a significant difference of 387 points.