Ooty vs Ulhasnagar
Side-by-side air quality comparison between Ooty and Ulhasnagar.
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 | Ulhasnagar |
|---|---|---|
| PM2.5(µg/m³) | 4.40 | 22.10 |
| PM10(µg/m³) | 5.20 | 40.40 |
| NO₂(µg/m³) | 7.00 | 23.10 |
| SO₂(µg/m³) | 0.90 | 21.70 |
| O₃(µg/m³) | 31.00 | 19.00 |
| CO(µg/m³) | 124.00 | 208.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ooty averaged an AQI of 58 while Ulhasnagar averaged 117 — a 59-point (102%) gap, with Ulhasnagar the more polluted and Ooty the cleaner of the two. On 313 days when both cities reported, Ooty was cleaner on 286 of them; the average daily gap was 74 AQI points.
Seasonality & days
Ooty peaks in May, while Ulhasnagar peaks in January. Ooty logged 0% Severe days and 94.2% Good-or-Satisfactory days; Ulhasnagar was 0% Severe and 46.9% Good-or-Satisfactory. Longest clean-air streaks: Ooty 22 days, Ulhasnagar 74 days.
Year-over-year progress
Ooty is essentially flat from 2022 to 2024; Ulhasnagar has improved by 10 AQI points (7.9%) over the same window. The worst recorded day for Ooty reached AQI 164 at Bombay Castel (TNPCB) on 2024-12-17; Ulhasnagar hit AQI 319 at Sidhi Vinayak Nagar (MPCB) on 2023-11-13.
Station-level disparity
Ooty spans 1 CPCB stations with a 0-point spread (min 59, max 59); Ulhasnagar spans 1 stations with a 0-point spread (min 120, max 120).
Verdict
🏆 Ooty has better air quality with an AQI of 7 compared to Ulhasnagar's 40.