Pāli vs Salem
Side-by-side air quality comparison between Pāli 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 | Pāli | Salem |
|---|---|---|
| PM2.5(µg/m³) | 33.50 | 13.70 |
| PM10(µg/m³) | 94.30 | 16.40 |
| NO₂(µg/m³) | 3.00 | 15.30 |
| SO₂(µg/m³) | 2.10 | 9.30 |
| O₃(µg/m³) | 58.00 | 37.00 |
| CO(µg/m³) | 143.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Pāli averaged an AQI of 134 while Salem averaged 68 — a 66-point (97%) gap, with Pāli the more polluted and Salem the cleaner of the two. On 363 days when both cities reported, Salem was cleaner on 305 of them; the average daily gap was 57 AQI points.
Seasonality & days
Pāli peaks in May, while Salem peaks in April. Pāli logged 0% Severe days and 40.099999999999994% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Pāli 38 days, Salem 17 days.
Year-over-year progress
Pāli has improved by 47 AQI points (26%) from 2017 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Pāli reached AQI 453 at Indira Colony Vistar (RSPCB) on 2019-04-16; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Pāli spans 1 CPCB stations with a 0-point spread (min 123, max 123); Salem spans 1 stations with a 0-point spread (min 73, max 73).
Verdict
🏆 Salem has better air quality with an AQI of 23 compared to Pāli's 94. That's a significant difference of 71 points.