What is the air quality trend in Zhengzhou?

Over the past 7 days, Zhengzhou had an average AQI of 56 based on station measurements. The worst day was 2026-07-20 with AQI 74.

How is Zhengzhou air quality measured?

Air quality in Zhengzhou 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 Zhengzhou, China

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

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

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

107h

PM2.5 Station

107h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	50	8–79	14.0 µg/m³	18h	2
2026-07-20	74	12–130	23.7 µg/m³	11h	2
2026-07-19	57	10–229	23.3 µg/m³	16h	2
2026-07-18	43	17–79	11.3 µg/m³	9h	2
2026-07-17	58	26–79	16.1 µg/m³	20h	2
2026-07-16	54	35–103	14.8 µg/m³	13h	2
2026-07-15	60	30–97	17.2 µg/m³	20h	2

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