Lima vs Sullana AQI Comparison

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

Lower average AQI: Sullana (76-pt gap)PM2.5: Lima 29.6 ug/m3 · Sullana 2.7 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2024-01-01–2025-01-01 and 2024-03-28–2025-01-01.

Compare two cities

City A

City B

Lima vs Sullana

Lima

Lima, Peru

PM2.5: 29.6 ug/m3
PM10: 50.1 ug/m3
Worst month: August
Trend: n/a

EPA category: Moderate

Sullana

Piura, Peru

PM2.5: 2.7 ug/m3
PM10: 4.7 ug/m3
Worst month: October
Trend: n/a

EPA category: Good

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

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Lima

106

124

125

119

104

Sullana

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.