Nārnaul vs Tirunelveli
Side-by-side air quality comparison between Nārnaul 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 | Nārnaul | Tirunelveli |
|---|---|---|
| PM2.5(µg/m³) | 45.80 | 4.30 |
| PM10(µg/m³) | 120.10 | 5.30 |
| NO₂(µg/m³) | 21.00 | 6.20 |
| SO₂(µg/m³) | 7.10 | 1.80 |
| O₃(µg/m³) | 63.00 | 26.00 |
| CO(µg/m³) | 386.00 | 139.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Nārnaul averaged an AQI of 94 while Tirunelveli averaged 30 — a 64-point (213%) gap, with Nārnaul the more polluted and Tirunelveli the cleaner of the two. On 97 days when both cities reported, Tirunelveli was cleaner on 97 of them; the average daily gap was 73 AQI points.
Seasonality & days
Nārnaul peaks in November, while Tirunelveli peaks in October. Nārnaul logged 0.1% Severe days and 40.8% Good-or-Satisfactory days; Tirunelveli was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Nārnaul 63 days, Tirunelveli 31 days.
Year-over-year progress
The worst recorded day for Nārnaul reached AQI 435 at Shastri Nagar (HSPCB) on 2023-11-16; Tirunelveli hit AQI 42 at Municipal Corporation Office (TNPCB) on 2024-10-30.
Station-level disparity
Nārnaul spans 1 CPCB stations with a 0-point spread (min 130, max 130); 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 Nārnaul's 114. That's a significant difference of 107 points.