Bhilai vs Ramanathapuram
Side-by-side air quality comparison between Bhilai 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 | Bhilai | Ramanathapuram |
|---|---|---|
| PM2.5(µg/m³) | 44.50 | 5.00 |
| PM10(µg/m³) | 51.20 | 7.50 |
| NO₂(µg/m³) | 40.20 | 3.40 |
| SO₂(µg/m³) | 76.50 | 3.90 |
| O₃(µg/m³) | 56.00 | 33.00 |
| CO(µg/m³) | 680.00 | 143.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Bhilai averaged an AQI of 73 while Ramanathapuram averaged 42 — a 31-point (74%) gap, with Bhilai the more polluted and Ramanathapuram the cleaner of the two. On 589 days when both cities reported, Ramanathapuram was cleaner on 514 of them; the average daily gap was 48 AQI points.
Seasonality & days
Bhilai peaks in November, while Ramanathapuram peaks in January. Bhilai logged 0% Severe days and 71.6% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Bhilai 119 days, Ramanathapuram 46 days.
Year-over-year progress
Bhilai has worsened by 8 AQI points (12.3%) from 2021 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Bhilai reached AQI 288 at Hathkhoj (CECB) on 2023-12-26; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Bhilai spans 3 CPCB stations with a 25-point spread (min 59, max 84); Ramanathapuram spans 1 stations with a 0-point spread (min 48, max 48).
Verdict
🏆 Ramanathapuram has better air quality with an AQI of 8 compared to Bhilai's 75. That's a significant difference of 67 points.