What is the air quality trend in Pernik?

Over the past 15 days, Pernik had an average AQI of 25 based on station measurements. The worst day was 2026-06-05 with AQI 33.

How is Pernik air quality measured?

Air quality in Pernik 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 Pernik, Bulgaria

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

Historical PM2.5 and AQI trend from monitoring stations near Pernik, Bulgaria.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

333h

PM2.5 Station

333h · 21 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-06-09	26	16–41	6.3 µg/m³	8.8	11h	21
2026-06-08	27	7–157	8.0 µg/m³	11.1	24h	21
2026-06-07	30	8–74	7.7 µg/m³	10.7	24h	20
2026-06-06	29	14–40	7.0 µg/m³	9.6	24h	21
2026-06-05	33	14–142	8.8 µg/m³	12.1	24h	21
2026-06-04	17	8–52	4.0 µg/m³	5.8	24h	21
2026-06-03	27	13–47	6.5 µg/m³	9.1	24h	21
2026-06-02	21	5–38	4.9 µg/m³	7.1	24h	21
2026-06-01	29	13–78	7.4 µg/m³	10.3	22h	20
2026-05-31	23	9–47	5.5 µg/m³	7.8	24h	21
2026-05-30	18	5–41	4.3 µg/m³	6.3	24h	20
2026-05-29	20	8–51	4.7 µg/m³	6.8	24h	20
2026-05-28	29	9–56	6.9 µg/m³	9.7	24h	20
2026-05-27	23	9–46	5.4 µg/m³	7.6	24h	19
2026-05-26	24	17–33	5.9 µg/m³	8.2	12h	20

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