What is the air quality trend in Houzhen?

Over the past 14 days, Houzhen had an average AQI of 93 based on station measurements. The worst day was 2026-10-12 with AQI 158.

How is Houzhen air quality measured?

Air quality in Houzhen 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 Houzhen, China

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

333h

PM2.5 Station

333h · 9 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	74	20–154	23.8 µg/m³	23h	5
2026-10-19	69	52–90	20.8 µg/m³	24h	6
2026-10-18	53	25–90	14.7 µg/m³	24h	6
2026-10-17	53	35–91	13.7 µg/m³	24h	6
2026-10-16	71	35–114	21.6 µg/m³	24h	5
2026-10-15	114	67–166	41.3 µg/m³	24h	6
2026-10-14	86	56–123	28.6 µg/m³	24h	5
2026-10-13	75	25–158	24.0 µg/m³	24h	6
2026-10-12	158	121–179	73.4 µg/m³	24h	6
2026-10-11	127	96–158	47.8 µg/m³	24h	6
2026-10-10	126	81–163	47.9 µg/m³	24h	6
2026-10-09	106	67–155	37.6 µg/m³	24h	6
2026-10-08	107	76–155	38.2 µg/m³	24h	6
2026-10-07	96	65–137	33.1 µg/m³	22h	5

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