What is the air quality trend in Tianjin?

Over the past 8 days, Tianjin had an average AQI of 58 based on station measurements. The worst day was 2026-07-21 with AQI 75.

How is Tianjin air quality measured?

Air quality in Tianjin 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 Tianjin, China

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

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

116

Current AQI
Unhealthy for sensitive groups Station

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
2026-07-21	75	58–138	23.4 µg/m³	20h	10
2026-07-20	64	46–76	18.4 µg/m³	24h	10
2026-07-19	67	48–87	19.5 µg/m³	24h	9
2026-07-18	60	23–93	16.8 µg/m³	24h	9
2026-07-17	54	30–70	14.1 µg/m³	24h	10
2026-07-16	60	48–83	16.3 µg/m³	24h	10
2026-07-15	51	23–75	13.1 µg/m³	24h	8
2026-07-14	36	35–37	8.7 µg/m³	3h	11

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