forecast
端点
每小时提供长达 96 小时(4 天)的空气
指定地理位置的质量预报信息每项预测都会涵盖
空气质量指数以及其他信息:
- 预测的具体时间和日期或时间段
- 翻译字段的语言代码
- 本地或自定义空气质量指数 (AQI)
- 健康建议
- 主要污染物
- 污染物浓度
- 有关污染物的更多信息
- 响应页面大小
- 调色板
借助 API Explorer,您可以发出实时请求 API 和 API 选项:
预测请求简介
您可以使用 预测端点,具体方法是:
https://airquality.googleapis.com/v1/forecast:lookup?key=YOUR_API_KEY
添加您的 参数 。请求正文包含您要处理的位置 比如获取每小时空气质量预报信息以及 控制要在响应中包含哪些其他信息。
预测响应简介
响应正文提供播放的世界协调时间 (UTC) 日期和时间 质量预报信息、空气质量指数以及其他自定义 信息。响应正文还包含用于检索下一页的令牌 如果信息不符合所请求的页面大小,则会发生该错误。
基本请求示例
以下代码展示了如何构建预测请求。在此示例中 由您指定地点、日期和时间(从下一个小时到 96 小时),以显示每小时空气质量预报信息。
curl -X POST -d '{ "location": { "latitude": 37.4125333, "longitude": -122.0840937 }, "dateTime": "2024-02-09T08:00:00Z" }' \ -H "Content-Type: application/json" \ -H "Accept-Language: *" \ "https://airquality.googleapis.com/v1/forecast:lookup?key=YOUR_API_KEY"
调用会生成以下 JSON 响应。
{ "hourlyForecasts": [ { "dateTime": "2024-02-09T08:00:00Z", "indexes": [ { "code": "uaqi", "displayName": "Universal AQI", "aqi": 80, "aqiDisplay": "80", "color": { "red": 0.34509805, "green": 0.74509805, "blue": 0.20784314 }, "category": "Excellent air quality", "dominantPollutant": "pm25" } ] } ], "regionCode": "us" }
包含多个参数的请求示例
以下代码展示了如何构建包含多个 参数。在此示例中,您指定了以下内容:
- 位置
- 显示空气质量预报信息的时间段
- 语言代码
- 额外计算(例如健康建议、主要污染物) 浓度和其他污染物信息)
- 调色板
curl -X POST -d '{ "pageSize": "10", "universalAqi": "true", "location": { "latitude": "40.741895", "longitude": "-73.989308" }, "period": { "startTime": "2024-02-27T13:58:14+02:00", "endTime": "2024-02-28T16:58:14+02:00" }, "languageCode": "en", "extraComputations": [ "HEALTH_RECOMMENDATIONS", "DOMINANT_POLLUTANT_CONCENTRATION", "POLLUTANT_ADDITIONAL_INFO" ], "uaqiColorPalette": "RED_GREEN" }' \ -H "Content-Type: application/json" \ -H "Accept-Language: *" \ "https://airquality.googleapis.com/v1/forecast:lookup?key=YOUR_API_KEY"
调用会生成以下 JSON 响应。
{ { "hourlyForecasts": [ { "dateTime": "2024-02-27T11:00:00Z", "indexes": [ { "code": "uaqi", "displayName": "Universal AQI", "aqi": 75, "aqiDisplay": "75", "color": { "red": 0.43137255, "green": 0.7764706, "blue": 0.20392157 }, "category": "Good air quality", "dominantPollutant": "pm25" } ], "pollutants": [ { "code": "pm25", "displayName": "PM2.5", "fullName": "Fine particulate matter (\u003c2.5µm)", "concentration": { "value": 15.1, "units": "MICROGRAMS_PER_CUBIC_METER" }, "additionalInfo": { "sources": "...", "effects": "..." } } ], "healthRecommendations": { "generalPopulation": "...", "lungDiseasePopulation": "...", "heartDiseasePopulation": "...", "athletes": "...", "pregnantWomen": "..." } }, { "dateTime": "2024-02-27T12:00:00Z", "indexes": [ { "code": "uaqi", "displayName": "Universal AQI", "aqi": 67, "aqiDisplay": "67", "color": { "red": 0.5882353, "green": 0.8392157, "blue": 0.16862746 }, "category": "Good air quality", "dominantPollutant": "pm25" } ], "pollutants": [ { "code": "pm25", "displayName": "PM2.5", "fullName": "Fine particulate matter (\u003c2.5µm)", "concentration": { "value": 19.96, "units": "MICROGRAMS_PER_CUBIC_METER" }, "additionalInfo": { "sources": "...", "effects": "..." } } ], "healthRecommendations": { "generalPopulation": "...", "lungDiseasePopulation": "...", "heartDiseasePopulation": "...", "athletes": "...", "pregnantWomen": "...", "children": "..." } }, /.../ ] } "regionCode": "us", "nextPageToken": "CjMKEglwCFVq9l5EQBH0aoDSUH9SwBoQCgYI1pDirgYSBgiGiOiuBiABKgMCBAMyAmVuOAEQGA==" }
如需查看下一页预测信息,请传入 nextPageToken
在响应正文的末尾返回:
curl -X POST -d '{ "universalAqi": "true", "location": { "latitude": "40.741895", "longitude": "-73.989308" }, "period": { "startTime": "2024-02-27T13:58:14+02:00", "endTime": "2024-02-28T16:58:14+02:00" }, "languageCode": "en", "extraComputations": [ "HEALTH_RECOMMENDATIONS", "DOMINANT_POLLUTANT_CONCENTRATION", "POLLUTANT_ADDITIONAL_INFO" ], "uaqiColorPalette": "RED_GREEN", "pageToken": "CjMKEglwCFVq9l5EQBH0aoDSUH9SwBoQCgYI1pDirgYSBgiGiOiuBiABKgMCBAMyAmVuOAEQGA==" }' \ -H "Content-Type: application/json" \ -H "Accept-Language: *" \ "https://airquality.googleapis.com/v1/forecast:lookup?key=YOUR_API_KEY"
系统将返回下一页预测信息:
{ "hourlyForecasts": [ { "dateTime": "2024-02-27T21:00:00Z", "indexes": [ { "code": "uaqi", "displayName": "Universal AQI", "aqi": 74, "aqiDisplay": "74", "color": { "red": 0.44705883, "green": 0.78431374, "blue": 0.2 }, "category": "Good air quality", "dominantPollutant": "o3" } ], "pollutants": [ { "code": "o3", "displayName": "O3", "fullName": "Ozone", "concentration": { "value": 32.07, "units": "PARTS_PER_BILLION" }, "additionalInfo": { "sources": "...", "effects": "..." } } ], "healthRecommendations": { "generalPopulation": "...", "elderly": "...", "lungDiseasePopulation": "...", "heartDiseasePopulation": "...", "athletes": "...", "pregnantWomen": "...", "children": "..." } }, { "dateTime": "2024-02-27T22:00:00Z", "indexes": [ { "code": "uaqi", "displayName": "Universal AQI", "aqi": 75, "aqiDisplay": "75", "color": { "red": 0.43137255, "green": 0.7764706, "blue": 0.20392157 }, "category": "Good air quality", "dominantPollutant": "o3" } ], "pollutants": [ { "code": "o3", "displayName": "O3", "fullName": "Ozone", "concentration": { "value": 30.94, "units": "PARTS_PER_BILLION" }, "additionalInfo": { "sources": "...", "effects": "..." } } ], "healthRecommendations": { "generalPopulation": "...", "lungDiseasePopulation": "...", "heartDiseasePopulation": "...", "athletes": "...", "pregnantWomen": "...", "children": "..." } }, /.../ ] "regionCode": "us" }