What is the air quality trend in Houzhen?

Over the past 14 days, Houzhen had an average AQI of 61 based on station measurements. The worst day was 2026-07-21 with AQI 72.

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.

153

Current AQI
Unhealthy Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 10 stations

Temperature GFS model

55pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	72	38–115	22.1 µg/m³	24h	8
2026-07-20	67	53–83	19.6 µg/m³	24h	8
2026-07-19	68	51–91	20.1 µg/m³	24h	7
2026-07-18	67	53–86	19.5 µg/m³	24h	9
2026-07-17	58	46–77	15.7 µg/m³	24h	9
2026-07-16	62	48–80	17.4 µg/m³	24h	8
2026-07-15	58	35–74	15.7 µg/m³	24h	8
2026-07-14	57	45–68	15.1 µg/m³	24h	9
2026-07-13	56	38–71	14.9 µg/m³	24h	10
2026-07-12	56	41–70	14.8 µg/m³	24h	9
2026-07-11	60	44–73	16.4 µg/m³	24h	10
2026-07-10	62	48–79	17.3 µg/m³	24h	10
2026-07-09	60	46–87	16.2 µg/m³	24h	9
2026-07-08	63	48–79	17.7 µg/m³	23h	9

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