{
  "$schema": "http://json-schema.org/schema#",
  "$schemaVersion": "0.1.1",
  "modelTags": "",
  "$id": "https://smart-data-models.github.io/dataModel.Environment/AirQualityObserved/schema.json",
  "title": "Smart Data Models - Air quality observed schema",
  "description": "An observation of air quality conditions at a certain place and time.",
  "type": "object",
  "allOf": [
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
    },
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
    },
    {
      "properties": {
        "type": {
          "type": "string",
          "enum": [
            "AirQualityObserved"
          ],
          "description": "Property. NGSI Entity type"
        },
        "dateObserved": {
          "type": "string",
          "description": "Property. The date and time of this observation in ISO8601 UTCformat. Model:'https://schema.org/Text' "
        },
        "areaServed": {
          "type": "string",
          "description": "Property. Higher level area to which this air quality measurement belongs to. Model:'https://schema.org/Text' "
        },
        "airQualityIndex": {
          "type": "integer",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. Air quality index is a number used to report the quality of the air on any given day."
        },
        "airQualityLevel": {
          "$ref": "https://raw.githubusercontent.com/smart-data-models/dataModel.Environment/master/Environment-schema.json#/definitions/airQualityLevel"
        },
        "reliability": {
          "type": "number",
          "minimum": 0,
          "maximum": 1.0,
          "description": "Property. Reliability (percentage, expressed in parts per one) corresponding to the air quality observed. Model:'https://schema.org/Number' "
        },
        "as": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. Arsenic detected"
        },
        "c6h6": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Benzene detected"
        },
        "cd": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Cadmium detected"
        },
        "co": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Carbon Monoxide detected"
        },
        "coLevel": {
          "type": "string",
          "description": "Property. Qualitative Carbon Monoxide presence"
        },
        "co2": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Carbon Dioxide detected"
        },
        "ni": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Nickel detected"
        },
        "no": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Nitrogen monoxide detected"
        },
        "no2": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Nitrogen dioxide detected"
        },
        "nox": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Other Nitrogen oxides detected"
        },
        "o3": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Ozone detected"
        },
        "pm10": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Particulate matter 10 micrometers or less in diameter"
        },
        "pm25": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Particulate matter 2.5 micrometers or less in diameter"
        },
        "pb": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Lead detected"
        },
        "precipitation": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Model:'https://schema.org/Number'. Amount of water rain. Units:'Liters per square meter'."
        },
        "relativeHumidity": {
          "type": "number",
          "minimum": 0,
          "maximum": 1,
          "description": "Property. Model:'https://schema.org/Number'. Humidity in the Air"
        },
        "sh2": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Hydrogen sulfide detected"
        },
        "so2": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Sulfur dioxide detected"
        },
        "typeofLocation": {
          "type": "string",
          "enum": [
            "indoor",
            "outdoor"
          ],
          "description": "Property. Model:'https://schema.org/Text'. Type of location of the sampled item"
        },
        "volatileOrganicCompoundsTotal": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Alkanes <C10, ketones <C6, aldehydes <C10, carboxylic acids <C5, aspirits<C7, Alkenes <C8, Aromatics"
        },
        "refDevice": {
          "anyOf": [
            {
              "type": "string",
              "minLength": 1,
              "maxLength": 256,
              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
              "description": "Property. Identifier format of any NGSI entity"
            },
            {
              "type": "string",
              "format": "uri",
              "description": "Property. Identifier format of any NGSI entity"
            }
          ],
          "description": "Relationship. A reference to the device(s) which captured this observation."
        },
        "refPointOfInterest": {
          "anyOf": [
            {
              "type": "string",
              "minLength": 1,
              "maxLength": 256,
              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
              "description": "Property. Identifier format of any NGSI entity"
            },
            {
              "type": "string",
              "format": "uri",
              "description": "Property. Identifier format of any NGSI entity"
            }
          ],
          "description": "Relationship. A reference to a point of interest (usually an air quality station) associated to this observation."
        },
        "refWeatherObserved": {
          "anyOf": [
            {
              "type": "string",
              "minLength": 1,
              "maxLength": 256,
              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
              "description": "Property. Identifier format of any NGSI entity"
            },
            {
              "type": "string",
              "format": "uri",
              "description": "Property. Identifier format of any NGSI entity"
            }
          ],
          "description": "Relationship.  Weather observed associated to the air quality conditions described by this entity."
        },
        "temperature": {
          "type": "number",
          "description": "Property. Temperature of the item"
        },
        "windDirection": {
          "type": "number",
          "description": "Property. Model:'http://schema.org/Number'. Direction of the weather vane",
          "minimum": -180,
          "maximum": 180
        },
        "windSpeed": {
          "type": "number",
          "description": "Property. Model:'http//schema.org/Number'. Intensity of the wind",
          "minimum": 0
        },
        "pm1": {
          "type": "number",
          "description": "Property. Particulate matter 1 micrometers or less in diameter."
        },
        "relativeHumidity": {
          "type": "number",
          "description": "Property. Relative Humidity of the air (a number between 0 and 1 representing the range of 0% to 100%)",
          "minimum": 0,
          "maximum": 1
        }
      }
    }
  ],
  "required": [
    "id",
    "type",
    "dateObserved",
    "location"
  ]
}