What is the air quality trend in Xi’an?

Over the past 14 days, Xi’an had an average AQI of 61 based on station measurements. The worst day was 2026-05-21 with AQI 71.

How is Xi’an air quality measured?

Air quality in Xi’an 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 Xi’an, China

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

Historical PM2.5 and AQI trend from monitoring stations near Xi’an, China.

Current AQI
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

331h

PM2.5 Station

331h · 15 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-05-29	70	54–155	21.2 µg/m³	23h	15
2026-05-28	63	39–83	17.7 µg/m³	24h	15
2026-05-27	66	55–86	19.3 µg/m³	24h	15
2026-05-26	62	46–84	17.3 µg/m³	24h	16
2026-05-25	59	47–69	15.8 µg/m³	24h	16
2026-05-24	59	37–69	15.8 µg/m³	24h	16
2026-05-23	64	49–78	18.2 µg/m³	24h	16
2026-05-22	67	52–83	19.9 µg/m³	24h	17
2026-05-21	71	52–129	21.5 µg/m³	24h	14
2026-05-20	59	48–74	15.9 µg/m³	24h	16
2026-05-19	59	49–75	16.0 µg/m³	24h	16
2026-05-18	55	42–74	14.2 µg/m³	24h	16
2026-05-17	55	45–69	14.2 µg/m³	23h	16
2026-05-16	57	45–64	15.1 µg/m³	21h	14

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