Huajing vs Shanghai AQI Comparison

Side-by-side OpenAQ-derived air quality comparison for Huajing and Shanghai. Values use mapped daily PM2.5 and PM10 observations normalized to US EPA AQI.

Lower average AQI: Shanghai (11-pt gap)PM2.5: Huajing 34.9 ug/m3 · Shanghai 25.9 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2023-12-31–2024-10-20 and 2024-03-14–2024-12-31.

Compare two cities

City A

City B

Huajing vs Shanghai

Huajing

Shanghai, China

PM2.5: 34.9 ug/m3
PM10: n/a ug/m3
Worst month: January
Trend: n/a

EPA category: Moderate

Shanghai

Shanghai, China

PM2.5: 25.9 ug/m3
PM10: n/a ug/m3
Worst month: December
Trend: n/a

EPA category: Moderate

Lower average AQI in this selected period: Shanghai. Values are historical OpenAQ-derived city summaries, not live readings.

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Huajing

164

151

129

Shanghai

101

122

What this comparison measures

Average EPA AQI — city-level daily AQI values averaged across the OpenAQ coverage window.
PM2.5 and PM10 — mapped monitor concentrations aggregated to daily city averages.
Seasonality — worst and cleanest months from the monthly city rollups.
Trend — difference between the earliest and latest yearly AQI average in this build.