Air Quality Daily Forecast (new)
Air quality (AQI) dailay forecasts, pollutants, and health advice for the next 3 days.
We recommend to read Air Quality Info to learn about the AQIs, pollutants, supported regions and more.
Request URL
https://api.qweather.com/airquality/v1/daily/{latitude}/{longitude}?{QueryParams}
For Free subscription, change the API Host to devapi.qweather.com
. See data available for Free subscription.
Path Parameters
-
latitude
(required)The latitude of the desired location. Decimal format, up to 2 decimal places. For example39.92
-
longitude
(required)The longitude of the desired location. Decimal format, up to 2 decimal places. For example116.41
Query Parameters
-
key
(required)API authentication key, please refer to How To Get Your Key. Support Signature Authentication. Example:key=12334567890ABC
-
lang
Multi-language setting, please see Language to find out how our multi-language works and how to set up.
Request Example
Response
The response is in JSON format and is Gzip compressed.
{
"metadata": {
"tag": "4b78230843e636a6f910631d94878da73aa980a66abfcf53d35f9c06493a292d"
},
"days": [
{
"forecastStartTime": "2023-02-14T23:00Z",
"forecastEndTime": "2023-02-15T23:00Z",
"indexes": [
{
"code": "qaqi",
"name": "QAQI",
"aqi": 1.0,
"aqiDisplay": "1.0",
"level": "1",
"category": "Excellent",
"color": {
"red": 195,
"green": 217,
"blue": 78,
"alpha": 1
},
"primaryPollutant": {
"code": "pm2p5",
"name": "PM 2.5",
"fullName": "Fine particulate matter (<2.5µm)"
},
"health": {
"effect": "No health implications.",
"advice": {
"generalPopulation": "Enjoy your outdoor activities.",
"sensitivePopulation": "Enjoy your outdoor activities."
}
}
},
{
"code": "eu-eea",
"name": "EAQI (EU)",
"aqi": 2,
"aqiDisplay": "2",
"level": "2",
"category": "Fair",
"color": {
"red": 80,
"green": 204,
"blue": 170,
"alpha": 1
},
"primaryPollutant": {
"code": "pm2p5",
"name": "PM 2.5",
"fullName": "Fine particulate matter (<2.5µm)"
},
"health": {
"effect": null,
"advice": {
"generalPopulation": "Enjoy your usual outdoor activities.",
"sensitivePopulation": "Enjoy your usual outdoor activities."
}
}
}
],
"pollutants": [
{
"code": "pm2p5",
"name": "PM 2.5",
"fullName": "Fine particulate matter (<2.5µm)",
"concentration": {
"value": 11.88,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 2,
"aqiDisplay": "2"
},
{
"code": "qaqi",
"aqi": 1,
"aqiDisplay": "1"
}
]
},
{
"code": "pm10",
"name": "PM 10",
"fullName": "Inhalable particulate matter (<10µm)",
"concentration": {
"value": 2.38,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.1,
"aqiDisplay": "0.1"
}
]
},
{
"code": "no2",
"name": "NO2",
"fullName": "Nitrogen dioxide",
"concentration": {
"value": 4.1,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.1,
"aqiDisplay": "0.1"
}
]
},
{
"code": "o3",
"name": "O3",
"fullName": "Ozone",
"concentration": {
"value": 36.33,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.8,
"aqiDisplay": "0.8"
}
]
},
{
"code": "so2",
"name": "SO2",
"fullName": "Sulfur dioxide",
"concentration": {
"value": 32.13,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.7,
"aqiDisplay": "0.7"
}
]
}
]
},
{
"forecastStartTime": "2023-02-15T23:00Z",
"forecastEndTime": "2023-02-16T23:00Z",
"indexes": [
{
"code": "qaqi",
"name": "QAQI",
"aqi": 1.1,
"aqiDisplay": "1.1",
"level": "1",
"category": "Excellent",
"color": {
"red": 195,
"green": 217,
"blue": 78,
"alpha": 1
},
"primaryPollutant": {
"code": "o3",
"name": "O3",
"fullName": "Ozone"
},
"health": {
"effect": "No health implications.",
"advice": {
"generalPopulation": "Enjoy your outdoor activities.",
"sensitivePopulation": "Enjoy your outdoor activities."
}
}
},
{
"code": "eu-eea",
"name": "EAQI (EU)",
"aqi": 2,
"aqiDisplay": "2",
"level": "2",
"category": "Fair",
"color": {
"red": 80,
"green": 204,
"blue": 170,
"alpha": 1
},
"primaryPollutant": {
"code": "o3",
"name": "O3",
"fullName": "Ozone"
},
"health": {
"effect": null,
"advice": {
"generalPopulation": "Enjoy your usual outdoor activities.",
"sensitivePopulation": "Enjoy your usual outdoor activities."
}
}
}
],
"pollutants": [
{
"code": "pm2p5",
"name": "PM 2.5",
"fullName": "Fine particulate matter (<2.5µm)",
"concentration": {
"value": 9.13,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.8,
"aqiDisplay": "0.8"
}
]
},
{
"code": "pm10",
"name": "PM 10",
"fullName": "Inhalable particulate matter (<10µm)",
"concentration": {
"value": 1.08,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.1,
"aqiDisplay": "0.1"
}
]
},
{
"code": "no2",
"name": "NO2",
"fullName": "Nitrogen dioxide",
"concentration": {
"value": 2.34,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.1,
"aqiDisplay": "0.1"
}
]
},
{
"code": "o3",
"name": "O3",
"fullName": "Ozone",
"concentration": {
"value": 53.33,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 2,
"aqiDisplay": "2"
},
{
"code": "qaqi",
"aqi": 1.1,
"aqiDisplay": "1.1"
}
]
},
{
"code": "so2",
"name": "SO2",
"fullName": "Sulfur dioxide",
"concentration": {
"value": 22.17,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.5,
"aqiDisplay": "0.5"
}
]
}
]
},
{
"forecastStartTime": "2023-02-16T23:00Z",
"forecastEndTime": "2023-02-17T23:00Z",
"indexes": [
{
"code": "qaqi",
"name": "QAQI",
"aqi": 0.9,
"aqiDisplay": "0.9",
"level": "1",
"category": "Excellent",
"color": {
"red": 195,
"green": 217,
"blue": 78,
"alpha": 1
},
"primaryPollutant": {
"code": "o3",
"name": "O3",
"fullName": "Ozone"
},
"health": {
"effect": "No health implications.",
"advice": {
"generalPopulation": "Enjoy your outdoor activities.",
"sensitivePopulation": "Enjoy your outdoor activities."
}
}
},
{
"code": "eu-eea",
"name": "EAQI (EU)",
"aqi": 1,
"aqiDisplay": "1",
"level": "1",
"category": "Good",
"color": {
"red": 80,
"green": 240,
"blue": 230,
"alpha": 1
},
"primaryPollutant": {
"code": "o3",
"name": "O3",
"fullName": "Ozone"
},
"health": {
"effect": null,
"advice": {
"generalPopulation": "The air quality is good. Enjoy your usual outdoor activities.",
"sensitivePopulation": "The air quality is good. Enjoy your usual outdoor activities."
}
}
}
],
"pollutants": [
{
"code": "pm2p5",
"name": "PM 2.5",
"fullName": "Fine particulate matter (<2.5µm)",
"concentration": {
"value": 8.5,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.7,
"aqiDisplay": "0.7"
}
]
},
{
"code": "pm10",
"name": "PM 10",
"fullName": "Inhalable particulate matter (<10µm)",
"concentration": {
"value": 1.54,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.1,
"aqiDisplay": "0.1"
}
]
},
{
"code": "no2",
"name": "NO2",
"fullName": "Nitrogen dioxide",
"concentration": {
"value": 2.77,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.1,
"aqiDisplay": "0.1"
}
]
},
{
"code": "o3",
"name": "O3",
"fullName": "Ozone",
"concentration": {
"value": 43.86,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.9,
"aqiDisplay": "0.9"
}
]
},
{
"code": "so2",
"name": "SO2",
"fullName": "Sulfur dioxide",
"concentration": {
"value": 20.94,
"unit": "μg/m3"
},
"subIndexes": [
{
"code": "eu-eea",
"aqi": 1,
"aqiDisplay": "1"
},
{
"code": "qaqi",
"aqi": 0.5,
"aqiDisplay": "0.5"
}
]
}
]
}
]
}
-
metadata.tag
Unique tag for this data -
dailyForecasts.forecastStartTime
The start time of the forecast data, ISO8601 format -
dailyForecasts.forecastEndTime
The end time of the forecast data, ISO8601 format -
dailyForecasts.indexes.code
Code of air quality index -
dailyForecasts.indexes.name
Name of air quality index -
dailyForecasts.indexes.aqi
Value of air quality index -
dailyForecasts.indexes.aqiDisplay
Display name of the AQI value -
dailyForecasts.indexes.level
Level of air quality index -
dailyForecasts.indexes.category
Category of air quality index -
dailyForecasts.indexes.color.red
Red in RGBA color for AQI -
dailyForecasts.indexes.color.green
Green in RGBA color for AQI -
dailyForecasts.indexes.color.blue
Blue in RGBA color for AQI -
dailyForecasts.indexes.color.alpha
Alpha in RGBA color for AQI -
dailyForecasts.indexes.primaryPollutant.code
The primary pollutant code, maybe NULL. -
dailyForecasts.indexes.primaryPollutant.name
Name of primary pollutant, maybe NULL. -
dailyForecasts.indexes.primaryPollutant.fullName
Full name of primary pollutant, maybe NULL. -
dailyForecasts.indexes.health.effect
Health effects of air quality, maybe NULL. -
dailyForecasts.indexes.health.advice.generalPopulation
Health advice for general population, maybe NULL. -
dailyForecasts.indexes.health.advice.sensitivePopulation
Health advice for sensitive population, maybe NULL. -
dailyForecasts.pollutants.code
The pollutant code. -
dailyForecasts.pollutants.name
Name of pollutant. -
dailyForecasts.pollutants.fullName
Full name of pollutant. -
dailyForecasts.pollutants.concentration.value
Concentration values of pollutants. -
dailyForecasts.pollutants.concentration.unit
Units for concentration values of pollutants. -
dailyForecasts.pollutants.subIndexes.code
Code of air quality sub-index, maybe NULL. -
dailyForecasts.pollutants.subIndexes.aqi
Sub-index value for pollutant, maybe NULL. -
dailyForecasts.pollutants.subIndexes.aqiDisplay
Sub-index for display, maybe NULL.