What is the air quality trend in Şimleu Silvaniei?

Over the past 12 days, Şimleu Silvaniei had an average AQI of 23 based on station measurements. The worst day was 2026-05-21 with AQI 30.

How is Şimleu Silvaniei air quality measured?

Air quality in Şimleu Silvaniei is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Şimleu Silvaniei, Romania

Name: Şimleu Silvaniei Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Şimleu Silvaniei, Romania.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

29h

PM2.5 Station

29h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	12	10–16	2.9 µg/m³	5h	1
2026-05-28	26	25–27	6.2 µg/m³	2h	1
2026-05-26	24	24–24	5.8 µg/m³	1h	1
2026-05-25	23	23–23	5.5 µg/m³	1h	1
2026-05-24	25	22–27	6.0 µg/m³	3h	1
2026-05-23	26	25–26	6.1 µg/m³	2h	1
2026-05-22	30	29–31	7.2 µg/m³	3h	1
2026-05-21	30	29–31	7.2 µg/m³	3h	1
2026-05-20	25	23–29	6.1 µg/m³	3h	1
2026-05-19	22	22–23	5.4 µg/m³	2h	1
2026-05-18	20	19–21	4.7 µg/m³	3h	1
2026-05-17	20	20–20	4.8 µg/m³	1h	1

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