AQI conditions

Overview

Returns the city’s current AQI plus primary pollutant concentrations and individual AQI indices.

Item	Details
Coverage	Major cities in mainland China
Update frequency	About hourly
Timezone	Business times are usually Beijing time; station forecast store uses UTC and responses also include local time
Auth	`X-API-Key` header; module grant required

GET /v1/aqi/condition
GET /aqi/condition

Parameter	Type	Required	Description
`city_uid`	integer	one of four	Internal city ID (highest priority)
`city_code`	string	one of four	GB2260 admin code, e.g. `110000`
`city_name`	string	one of four	City name, e.g. `Beijing`
`lat`	number	with lon	Latitude -90~90
`lon`	number	with lat	Longitude -180~180
`format`	string	no	Response format: `json` (default) / `csv` / `tsv` / `xml` / `yaml`

Shape: { city, condition }.

Field	Type	Unit	Description
`update_time`	string	ISO8601	Update time
`aqi`	number	—	Air quality index
`aqi_level`	number	1–6	Level number
`aqi_level_name`	string	—	Level name (Excellent / Good / Light pollution…)
`pm25`	number	μg/m³	PM2.5
`pm10`	number	μg/m³	PM10
`so2`	number	μg/m³	Sulfur dioxide
`no2`	number	μg/m³	Nitrogen dioxide
`o3`	number	μg/m³	Ozone
`co`	number	mg/m³	Carbon monoxide
`pm25_iaqi`	number	—	PM2.5 IAQI
`pm10_iaqi`	number	—	PM10 IAQI
`so2_iaqi`	number	—	SO₂ IAQI
`no2_iaqi`	number	—	NO₂ IAQI
`o3_iaqi`	number	—	O₃ IAQI
`co_iaqi`	number	—	CO IAQI
`primary_pollutant`	string	—	Primary pollutant