Ooty vs Sasaram
Side-by-side air quality comparison between Ooty and Sasaram.
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 | Ooty | Sasaram |
|---|---|---|
| PM2.5(µg/m³) | 4.90 | 69.80 |
| PM10(µg/m³) | 5.30 | 80.30 |
| NO₂(µg/m³) | 5.70 | 15.10 |
| SO₂(µg/m³) | 0.90 | 14.40 |
| O₃(µg/m³) | 38.00 | 101.00 |
| CO(µg/m³) | 132.00 | 627.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ooty averaged an AQI of 58 while Sasaram averaged 109 — a 51-point (88%) gap, with Sasaram the more polluted and Ooty the cleaner of the two. On 481 days when both cities reported, Ooty was cleaner on 404 of them; the average daily gap was 85 AQI points.
Seasonality & days
Ooty peaks in May, while Sasaram peaks in January. Ooty logged 0% Severe days and 94.2% Good-or-Satisfactory days; Sasaram was 0.1% Severe and 37% Good-or-Satisfactory. Longest clean-air streaks: Ooty 22 days, Sasaram 27 days.
Year-over-year progress
Ooty is essentially flat from 2022 to 2024; Sasaram has improved by 166 AQI points (60.4%) over the same window. The worst recorded day for Ooty reached AQI 164 at Bombay Castel (TNPCB) on 2024-12-17; Sasaram hit AQI 401 at Dada Peer (BSPCB) on 2021-11-28.
Station-level disparity
Ooty spans 1 CPCB stations with a 0-point spread (min 59, max 59); Sasaram spans 1 stations with a 0-point spread (min 148, max 148).
Verdict
🏆 Ooty has better air quality with an AQI of 8 compared to Sasaram's 133. That's a significant difference of 125 points.