What is the air quality trend in Hulan Ergi?

Over the past 8 days, Hulan Ergi had an average AQI of 70 based on station measurements. The worst day was 2026-07-19 with AQI 85.

How is Hulan Ergi air quality measured?

Air quality in Hulan Ergi 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 Hulan Ergi, China

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-21	62	9–89	18.0 µg/m³	—	21h	3
2026-07-20	73	32–122	22.6 µg/m³	28.8	24h	4
2026-07-19	85	54–157	28.4 µg/m³	50.0	24h	4
2026-07-18	83	60–160	28.0 µg/m³	42.5	24h	5
2026-07-17	68	48–116	20.2 µg/m³	42.8	24h	5
2026-07-16	67	47–100	19.8 µg/m³	30.4	24h	5
2026-07-15	64	43–148	18.4 µg/m³	33.4	24h	4
2026-07-14	58	53–63	15.3 µg/m³	35.0	2h	4

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