Moradabad vs Salem
Side-by-side air quality comparison between Moradabad 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 | Moradabad | Salem |
|---|---|---|
| PM2.5(µg/m³) | 60.10 | 13.70 |
| PM10(µg/m³) | 75.00 | 16.40 |
| NO₂(µg/m³) | 26.10 | 15.30 |
| SO₂(µg/m³) | 9.10 | 9.30 |
| O₃(µg/m³) | 69.00 | 37.00 |
| CO(µg/m³) | 1058.00 | 240.00 |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Moradabad averaged an AQI of 99 while Salem averaged 68 — a 31-point (46%) gap, with Moradabad the more polluted and Salem the cleaner of the two. On 208 days when both cities reported, Salem was cleaner on 191 of them; the average daily gap was 71 AQI points.
Seasonality & days
Moradabad peaks in November, while Salem peaks in April. Moradabad logged 2.8% Severe days and 25% Good-or-Satisfactory days; Salem was 0% Severe and 87.1% Good-or-Satisfactory. Longest clean-air streaks: Moradabad 55 days, Salem 17 days.
Year-over-year progress
Moradabad has improved by 223 AQI points (69.3%) from 2017 to 2024; Salem has improved by 5 AQI points (6.8%) over the same window. The worst recorded day for Moradabad reached AQI 489 at Lajpat Nagar (UPPCB) on 2020-11-05; Salem hit AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15.
Station-level disparity
Moradabad spans 7 CPCB stations with a 114-point spread (min 96, max 210); 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 Moradabad's 101. That's a significant difference of 78 points.