Begusarai vs Salem
Side-by-side air quality comparison between Begusarai 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, Begusarai averaged an AQI of 128 while Salem averaged 68 — a 60-point (88%) gap, with Begusarai the more polluted and Salem the cleaner of the two. On 184 days when both cities reported, Salem was cleaner on 165 of them; the average daily gap was 143 AQI points.
Seasonality & days
Begusarai peaks in January, while Salem peaks in April. Begusarai logged 8.7% Severe days and 20.8% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Begusarai 14 days, Salem 17 days.
Year-over-year progress
Begusarai has improved by 137 AQI points (51.7%) from 2023 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Begusarai reached AQI 469 at Lohiyanagar (BSPCB) on 2023-01-14; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Begusarai spans 1 CPCB stations with a 0-point spread (min 213, max 213); Salem spans 1 stations with a 0-point spread (min 73, max 73).