Rāichūr vs Salem
Side-by-side air quality comparison between Rāichūr 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
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Rāichūr | Salem |
|---|---|---|
| PM2.5(µg/m³) | 10.30 | 12.90 |
| PM10(µg/m³) | 14.50 | 15.80 |
| NO₂(µg/m³) | 9.40 | 17.10 |
| SO₂(µg/m³) | 2.10 | 7.50 |
| O₃(µg/m³) | 42.00 | 30.00 |
| CO(µg/m³) | 224.00 | 243.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Rāichūr averaged an AQI of 106 while Salem averaged 68 — a 38-point (56%) gap, with Rāichūr the more polluted and Salem the cleaner of the two. On 271 days when both cities reported, Salem was cleaner on 205 of them; the average daily gap was 34 AQI points.
Seasonality & days
Rāichūr peaks in February, while Salem peaks in April. Rāichūr logged 0% Severe days and 54.1% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Rāichūr 23 days, Salem 17 days.
Year-over-year progress
Rāichūr has improved by 24 AQI points (18.5%) from 2020 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Rāichūr reached AQI 390 at Haji Colony (KSPCB) on 2022-01-25; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Rāichūr spans 1 CPCB stations with a 0-point spread (min 93, max 93); Salem spans 1 stations with a 0-point spread (min 73, max 73).
Verdict
🏆 Rāichūr has better air quality with an AQI of 17 compared to Salem's 22.