Masis vs Yerevan AQI Comparison

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

Lower average AQI: Yerevan (22-pt gap)PM2.5: Masis 43.2 ug/m3 · Yerevan 27.0 ug/m3

Source: OpenAQ local exports mapped to AQI Now cities; city summaries cover 2024-07-30–2024-12-31 and 2024-07-30–2024-12-31.

Compare two cities

City A

City B

Masis vs Yerevan

Masis

Ararat, Armenia

105

PM2.5: 43.2 ug/m3
PM10: n/a ug/m3
Worst month: December
Trend: n/a

EPA category: Unhealthy for Sensitive Groups

Yerevan

Yerevan, Armenia

PM2.5: 27.0 ug/m3
PM10: n/a ug/m3
Worst month: December
Trend: n/a

EPA category: Moderate

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

Yearly EPA AQI trend

Seasonal EPA AQI heatmap

JanFebMarAprMayJunJulAugSepOctNovDec

Masis

132

186

Yerevan

143

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.