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Salem vs Ujjain

Side-by-side air quality comparison between Salem and Ujjain.

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

Salem

Tamil Nadu, India

Good

PM2.5: 12.7 µg/m³

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VS

Ujjain

Madhya Pradesh, India

Data unavailable

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CPCB Multi-Year History (2016–2024)

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Summary

Overview

In 2024, Salem averaged an AQI of 68 while Ujjain averaged 116 — a 48-point (71%) gap, with Ujjain the more polluted and Salem the cleaner of the two. On 352 days when both cities reported, Salem was cleaner on 306 of them; the average daily gap was 65 AQI points.

Seasonality & days

Salem peaks in April, while Ujjain peaks in November. Salem logged 0% Severe days and 87.1% Good-or-Satisfactory days; Ujjain was 0.1% Severe and 33.800000000000004% Good-or-Satisfactory. Longest clean-air streaks: Salem 17 days, Ujjain 67 days.

Year-over-year progress

Salem has improved by 5 AQI points (6.8%) from 2022 to 2024; Ujjain has improved by 71 AQI points (38%) over the same window. The worst recorded day for Salem reached AQI 214 at Sona College of Technology (TNPCB) on 2024-01-15; Ujjain hit AQI 500 at Mahakaleshwar Temple (MPPCB) on 2023-03-10.

Station-level disparity

Salem spans 1 CPCB stations with a 0-point spread (min 73, max 73); Ujjain spans 1 stations with a 0-point spread (min 131, max 131).

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