Ramanathapuram vs Ulhasnagar
Side-by-side air quality comparison between Ramanathapuram 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 | Ramanathapuram | Ulhasnagar |
|---|---|---|
| PM2.5(µg/m³) | 5.80 | 23.70 |
| PM10(µg/m³) | 8.80 | 40.90 |
| NO₂(µg/m³) | 4.80 | 20.60 |
| SO₂(µg/m³) | 4.10 | 23.00 |
| O₃(µg/m³) | 31.00 | 23.00 |
| CO(µg/m³) | 141.00 | 215.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Ramanathapuram averaged an AQI of 42 while Ulhasnagar averaged 117 — a 75-point (179%) gap, with Ulhasnagar the more polluted and Ramanathapuram the cleaner of the two. On 388 days when both cities reported, Ramanathapuram was cleaner on 371 of them; the average daily gap was 80 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Ramanathapuram logged 0% Severe days and 94.4% Good-or-Satisfactory days; Ulhasnagar was 0% Severe and 46.9% Good-or-Satisfactory. Longest clean-air streaks: Ramanathapuram 46 days, Ulhasnagar 74 days.
Year-over-year progress
Ramanathapuram has improved by 18 AQI points (30%) from 2022 to 2024; Ulhasnagar has improved by 10 AQI points (7.9%) over the same window. The worst recorded day for Ramanathapuram reached AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07; Ulhasnagar hit AQI 319 at Sidhi Vinayak Nagar (MPCB) on 2023-11-13.
Station-level disparity
Ramanathapuram spans 1 CPCB stations with a 0-point spread (min 48, max 48); Ulhasnagar spans 1 stations with a 0-point spread (min 120, max 120).
Verdict
🏆 Ramanathapuram has better air quality with an AQI of 10 compared to Ulhasnagar's 41.