Bidar vs Salem
Side-by-side air quality comparison between Bidar 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, Bidar averaged an AQI of 85 while Salem averaged 68 — a 17-point (25%) gap, with Bidar the more polluted and Salem the cleaner of the two. On 267 days when both cities reported, Salem was cleaner on 158 of them; the average daily gap was 30 AQI points.
Seasonality & days
Bidar peaks in January, while Salem peaks in April. Bidar logged 0.1% Severe days and 72.5% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Bidar 24 days, Salem 17 days.
Year-over-year progress
Bidar has worsened by 1 AQI points (1.2%) from 2021 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Bidar reached AQI 437 at Naubad (KSPCB) on 2022-01-25; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Bidar spans 1 CPCB stations with a 0-point spread (min 84, max 84); Salem spans 1 stations with a 0-point spread (min 73, max 73).