預測

forecast 端點可針對特定地點提供最多 96 小時 (4 天) 的每小時空氣品質預測資訊。每份預測都包含每小時的空氣品質指數和其他資訊:

  • 預測的特定時間和日期或時間範圍
  • 已翻譯欄位的語言代碼
  • 當地或自訂空氣品質指數 (AQI)
  • 健康推薦內容
  • 主要汙染物
  • 汙染物濃度
  • 關於污染物的其他資訊
  • 回應頁面大小
  • 調色盤

您可以透過 APIs Explorer 提出即時要求,熟悉 API 和 API 選項:

試試看!

預測請求簡介

您可以使用預測端點,透過 HTTP POST 要求傳送以下資訊,以便要求每小時空氣品質預測資訊:

https://airquality.googleapis.com/v1/forecast:lookup?key=YOUR_API_KEY

加入 參數 。要求主體包含您想要儲存的位置 像是取得每小時空氣品質天氣預報資訊,以及 控管要在回應中納入的其他資訊

關於預測回應

回應主體提供顯示廣播的日期和時間 (世界標準時間) 品質預測資訊、空氣品質指數和其他自訂 可能不準確或不適當回應主體也含有可擷取下一頁的權杖 。

基本要求範例

以下程式碼說明如何建構預測要求。在這個例子中 您指定的地區、日期和時間 (從下一個小時到 96 開始) 小時) 來顯示每小時的空氣品質預報資訊。

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"

呼叫會產生下列 JSON 回應。

{
  "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"
}

包含多個參數的要求範例

下列程式碼顯示如何使用多個 參數。在本範例中,您會指定下列項目:

  • 位置
  • 空氣品質預報資訊的顯示時間範圍
  • 語言代碼
  • 額外計算,例如健康相關建議、主要汙染物 濃度和其他汙染物資訊)
  • 調色盤
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"

呼叫會產生下列 JSON 回應。

{
  {
  "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=="
}

如要查看下一頁的預測資訊,請傳入回應主體結尾處傳回的 nextPageToken

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"

這會傳回預測資訊的下一頁:

{
  "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"
}