Bihar Sharif vs Ramanathapuram
Side-by-side air quality comparison between Bihar Sharif and Ramanathapuram.
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 | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 58.80 | 5.30 |
| PM10(µg/m³) | 87.80 | 7.90 |
| NO₂(µg/m³) | 0.60 | 0.90 |
| SO₂(µg/m³) | 8.80 | 2.50 |
| O₃(µg/m³) | 179.00 | 76.00 |
| CO(µg/m³) | 252.00 | 121.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bihar Sharif averaged an AQI of 115 while Ramanathapuram averaged 42 — a 73-point (174%) gap, with Bihar Sharif the more polluted and Ramanathapuram the cleaner of the two. On 573 days when both cities reported, Ramanathapuram was cleaner on 512 of them; the average daily gap was 84 AQI points.
Seasonality & days
Bihar Sharif peaks in December, while Ramanathapuram peaks in January. Bihar Sharif logged 1% Severe days and 39.1% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Bihar Sharif 32 days, Ramanathapuram 46 days.
Year-over-year progress
Bihar Sharif has improved by 138 AQI points (54.5%) from 2021 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Bihar Sharif reached AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Bihar Sharif spans 1 CPCB stations with a 0-point spread (min 146, max 146); Ramanathapuram spans 1 stations with a 0-point spread (min 48, max 48).
Verdict
🏆 Ramanathapuram has better air quality with an AQI of 9 compared to Bihar Sharif's 98. That's a significant difference of 89 points.