What is the air quality trend in Haicheng?

Over the past 8 days, Haicheng had an average AQI of 69 based on station measurements. The worst day was 2026-05-23 with AQI 77.

How is Haicheng air quality measured?

Air quality in Haicheng 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 Haicheng, China

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

Historical PM2.5 and AQI trend from monitoring stations near Haicheng, China.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 10 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-30	74	63–89	23.1 µg/m³	7h	9
2026-05-29	68	51–85	20.2 µg/m³	24h	9
2026-05-28	71	48–179	23.0 µg/m³	24h	8
2026-05-27	70	55–89	21.0 µg/m³	24h	9
2026-05-26	67	42–135	19.6 µg/m³	24h	10
2026-05-25	59	42–96	16.3 µg/m³	24h	10
2026-05-24	69	45–176	22.2 µg/m³	24h	10
2026-05-23	77	56–146	24.2 µg/m³	16h	9

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