What is the air quality trend in Karlovo?

Over the past 8 days, Karlovo had an average AQI of 81 based on station measurements. The worst day was 2026-05-23 with AQI 123.

How is Karlovo air quality measured?

Air quality in Karlovo 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 Karlovo, Bulgaria

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-29	36	6–137	10.6 µg/m³	14.8	20h	2
2026-05-28	61	13–173	20.5 µg/m³	27.9	24h	2
2026-05-27	69	9–179	27.3 µg/m³	37.3	24h	2
2026-05-26	104	13–230	54.7 µg/m³	73.8	23h	2
2026-05-25	84	8–208	32.5 µg/m³	44.2	24h	2
2026-05-24	95	8–228	44.5 µg/m³	60.2	24h	2
2026-05-23	123	39–373	66.9 µg/m³	90.4	24h	2
2026-05-22	80	45–142	25.1 µg/m³	34.0	3h	2

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