Agartala vs Salem
Side-by-side air quality comparison between Agartala 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 | Agartala | Salem |
|---|---|---|
| PM2.5(µg/m³) | 37.30 | 12.70 |
| PM10(µg/m³) | 40.40 | 15.90 |
| NO₂(µg/m³) | 23.00 | 17.00 |
| SO₂(µg/m³) | 3.10 | 7.00 |
| O₃(µg/m³) | 23.00 | 30.00 |
| CO(µg/m³) | 281.00 | 237.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Agartala averaged an AQI of 140 while Salem averaged 68 — a 72-point (106%) gap, with Agartala the more polluted and Salem the cleaner of the two. On 180 days when both cities reported, Salem was cleaner on 148 of them; the average daily gap was 94 AQI points.
Seasonality & days
Agartala peaks in January, while Salem peaks in April. Agartala logged 0% Severe days and 52.900000000000006% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Agartala 87 days, Salem 17 days.
Year-over-year progress
Agartala has improved by 13 AQI points (8.5%) from 2020 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Agartala reached AQI 364 at Kunjaban Agartala (SPCB) on 2022-12-16; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Agartala spans 2 CPCB stations with a 10-point spread (min 109, max 119); Salem spans 1 stations with a 0-point spread (min 73, max 73).
Verdict
🏆 Salem has better air quality with an AQI of 21 compared to Agartala's 63.