Bihar Sharif vs Ooty
Side-by-side air quality comparison between Bihar Sharif and Ooty.
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 | Ooty |
|---|---|---|
| PM2.5(µg/m³) | 74.50 | 4.90 |
| PM10(µg/m³) | 82.20 | 5.30 |
| NO₂(µg/m³) | 35.60 | 5.70 |
| SO₂(µg/m³) | 13.00 | 0.90 |
| O₃(µg/m³) | 31.00 | 38.00 |
| CO(µg/m³) | 620.00 | 132.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bihar Sharif averaged an AQI of 115 while Ooty averaged 58 — a 57-point (98%) gap, with Bihar Sharif the more polluted and Ooty the cleaner of the two. On 481 days when both cities reported, Ooty was cleaner on 396 of them; the average daily gap was 76 AQI points.
Seasonality & days
Bihar Sharif peaks in December, while Ooty peaks in May. Bihar Sharif logged 1% Severe days and 39.1% Good-or-Satisfactory days; Ooty was 0% Severe and 94.2% Good-or-Satisfactory. Longest clean-air streaks: Bihar Sharif 32 days, Ooty 22 days.
Year-over-year progress
Bihar Sharif has improved by 138 AQI points (54.5%) from 2021 to 2024; Ooty is essentially flat over the same window. The worst recorded day for Bihar Sharif reached AQI 433 at D M Colony Bihar (BSPCB) on 2021-12-24; Ooty hit AQI 164 at Bombay Castel (TNPCB) on 2024-12-17.
Station-level disparity
Bihar Sharif spans 1 CPCB stations with a 0-point spread (min 146, max 146); Ooty spans 1 stations with a 0-point spread (min 59, max 59).
Verdict
🏆 Ooty has better air quality with an AQI of 8 compared to Bihar Sharif's 149. That's a significant difference of 141 points.