Salem vs Samastipur
Side-by-side air quality comparison between Salem and Samastipur.
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, Salem averaged an AQI of 68 while Samastipur averaged 134 — a 66-point (97%) gap, with Samastipur the more polluted and Salem the cleaner of the two. On 315 days when both cities reported, Salem was cleaner on 274 of them; the average daily gap was 119 AQI points.
Seasonality & days
Salem peaks in April, while Samastipur peaks in January. Salem logged 0% Severe days and 87.1% Good-or-Satisfactory days; Samastipur was 1.4% Severe and 23.400000000000002% Good-or-Satisfactory. Longest clean-air streaks: Salem 17 days, Samastipur 9 days.
Year-over-year progress
Salem has improved by 5 AQI points (6.8%) from 2022 to 2024; Samastipur has improved by 84 AQI points (38.5%) over the same window. The worst recorded day for Salem reached AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15; Samastipur hit AQI 459 at DM Office Kasipur (BSPCB) on 2023-01-01.
Station-level disparity
Salem spans 1 CPCB stations with a 0-point spread (min 73, max 73); Samastipur spans 1 stations with a 0-point spread (min 177, max 177).