What is the air quality trend in Haeju?

Over the past 15 days, Haeju had an average AQI of 53 based on station measurements. The worst day was 2026-05-18 with AQI 68.

How is Haeju air quality measured?

Air quality in Haeju 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 Haeju, Korea, Democratic People's Republic of

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

Historical PM2.5 and AQI trend from monitoring stations near Haeju, Korea, Democratic People's Republic of.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

308h

PM2.5 Station

308h · 1 station

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	64	46–79	18.8 µg/m³	5h	2
2026-05-29	61	6–112	18.3 µg/m³	21h	2
2026-05-28	54	28–121	15.0 µg/m³	22h	2
2026-05-27	32	12–65	8.0 µg/m³	23h	2
2026-05-26	47	5–99	12.8 µg/m³	23h	3
2026-05-25	60	28–86	16.8 µg/m³	22h	3
2026-05-24	57	31–92	16.4 µg/m³	20h	2
2026-05-23	52	21–87	13.6 µg/m³	24h	3
2026-05-22	48	30–63	12.0 µg/m³	22h	3
2026-05-21	36	18–58	8.8 µg/m³	22h	3
2026-05-20	39	19–63	9.5 µg/m³	23h	3
2026-05-19	65	12–88	19.5 µg/m³	24h	3
2026-05-18	68	35–104	20.5 µg/m³	23h	4
2026-05-17	63	36–90	18.0 µg/m³	21h	6
2026-05-16	50	17–64	12.9 µg/m³	13h	4

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