Ramanathapuram vs Salem
Side-by-side air quality comparison between Ramanathapuram and Salem.
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, Ramanathapuram averaged an AQI of 42 while Salem averaged 68 — a 26-point (62%) gap, with Salem the more polluted and Ramanathapuram the cleaner of the two. On 347 days when both cities reported, Ramanathapuram was cleaner on 296 of them; the average daily gap was 32 AQI points.
Seasonality & days
Ramanathapuram peaks in January, while Salem peaks in April. Ramanathapuram logged 0% Severe days and 94.4% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Ramanathapuram 46 days, Salem 17 days.
Year-over-year progress
Ramanathapuram has improved by 18 AQI points (30%) from 2022 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Ramanathapuram reached AQI 246 at Chalai Bazaar (TNPCB) on 2022-12-07; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Ramanathapuram spans 1 CPCB stations with a 0-point spread (min 48, max 48); Salem spans 1 stations with a 0-point spread (min 73, max 73).