Tirunelveli vs Tonk
Side-by-side air quality comparison between Tirunelveli and Tonk.
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 | Tirunelveli | Tonk |
|---|---|---|
| PM2.5(µg/m³) | 4.30 | 34.90 |
| PM10(µg/m³) | 5.30 | 75.90 |
| NO₂(µg/m³) | 6.20 | 14.10 |
| SO₂(µg/m³) | 1.80 | 4.50 |
| O₃(µg/m³) | 26.00 | 38.00 |
| CO(µg/m³) | 139.00 | 239.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Tirunelveli averaged an AQI of 30 while Tonk averaged 142 — a 112-point (373%) gap, with Tonk the more polluted and Tirunelveli the cleaner of the two. On 99 days when both cities reported, Tirunelveli was cleaner on 96 of them; the average daily gap was 130 AQI points.
Seasonality & days
Tirunelveli peaks in October, while Tonk peaks in November. Tirunelveli logged 0% Severe days and 100% Good-or-Satisfactory days; Tonk was 0% Severe and 28.200000000000003% Good-or-Satisfactory. Longest clean-air streaks: Tirunelveli 31 days, Tonk 11 days.
Year-over-year progress
The worst recorded day for Tirunelveli reached AQI 42 at Municipal Corporation Office (TNPCB) on 2024-10-30; Tonk hit AQI 368 at Shastri Nagar (RSPCB) on 2023-11-17.
Station-level disparity
Tirunelveli spans 1 CPCB stations with a 0-point spread (min 30, max 30); Tonk spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Tirunelveli has better air quality with an AQI of 7 compared to Tonk's 76. That's a significant difference of 69 points.