预测

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:

试试看!

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"
}