Chapra vs Ramanathapuram
Side-by-side air quality comparison between Chapra 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
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Chapra averaged an AQI of 149 while Ramanathapuram averaged 42 — a 107-point (255%) gap, with Chapra the more polluted and Ramanathapuram the cleaner of the two. On 622 days when both cities reported, Ramanathapuram was cleaner on 594 of them; the average daily gap was 148 AQI points.
Seasonality & days
Both cities see their worst air in January on average. Chapra logged 2.4% Severe days and 26.8% Good-or-Satisfactory days; Ramanathapuram was 0% Severe and 94.4% Good-or-Satisfactory. Longest clean-air streaks: Chapra 14 days, Ramanathapuram 46 days.
Year-over-year progress
Chapra has improved by 181 AQI points (54.8%) from 2021 to 2024; Ramanathapuram has improved by 18 AQI points (30%) over the same window. The worst recorded day for Chapra reached AQI 452 at Darshan Nagar (BSPCB) on 2022-12-20; Ramanathapuram hit AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07.
Station-level disparity
Chapra spans 1 CPCB stations with a 0-point spread (min 195, max 195); Ramanathapuram spans 1 stations with a 0-point spread (min 48, max 48).