Bilaspur vs Salem
Side-by-side air quality comparison between Bilaspur 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, Bilaspur averaged an AQI of 61 while Salem averaged 68 — a 7-point (11%) gap, with Salem the more polluted and Bilaspur the cleaner of the two. On 329 days when both cities reported, Salem was cleaner on 167 of them; the average daily gap was 28 AQI points.
Seasonality & days
Bilaspur peaks in December, while Salem peaks in April. Bilaspur logged 0% Severe days and 88% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Bilaspur 66 days, Salem 17 days.
Year-over-year progress
Bilaspur has improved by 22 AQI points (26.5%) from 2021 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Bilaspur reached AQI 259 at Mangala (NTPC) on 2023-03-09; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Bilaspur spans 1 CPCB stations with a 0-point spread (min 69, max 69); Salem spans 1 stations with a 0-point spread (min 73, max 73).