Bihar Sharif vs Tirunelveli
Side-by-side air quality comparison between Bihar Sharif 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 | Bihar Sharif | Tirunelveli |
|---|---|---|
| PM2.5(µg/m³) | 66.80 | 3.10 |
| PM10(µg/m³) | 82.40 | 3.50 |
| NO₂(µg/m³) | 11.50 | 3.70 |
| SO₂(µg/m³) | 18.00 | 1.70 |
| O₃(µg/m³) | 145.00 | 40.00 |
| CO(µg/m³) | 393.00 | 173.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bihar Sharif averaged an AQI of 115 while Tirunelveli averaged 30 — a 85-point (283%) gap, with Bihar Sharif the more polluted and Tirunelveli the cleaner of the two. On 104 days when both cities reported, Tirunelveli was cleaner on 103 of them; the average daily gap was 97 AQI points.
Seasonality & days
Bihar Sharif peaks in December, while Tirunelveli peaks in October. Bihar Sharif logged 1% Severe days and 39.1% Good-or-Satisfactory days; Tirunelveli was 0% Severe and 100% Good-or-Satisfactory. Longest clean-air streaks: Bihar Sharif 32 days, Tirunelveli 31 days.
Year-over-year progress
The worst recorded day for Bihar Sharif reached AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24; Tirunelveli hit AQI 42 at Municipal Corporation Office (TNPCB) on 2024-10-30.
Station-level disparity
Bihar Sharif spans 1 CPCB stations with a 0-point spread (min 146, max 146); Tirunelveli spans 1 stations with a 0-point spread (min 30, max 30).
Verdict
🏆 Tirunelveli has better air quality with an AQI of 5 compared to Bihar Sharif's 123. That's a significant difference of 118 points.