{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/xweather/refs/heads/main/json-schema/xweather-air-quality-observation-schema.json",
  "title": "AirQualityObservation",
  "description": "AirQualityObservation schema from Xweather Weather API",
  "type": "object",
  "properties": {
    "aqi": {
      "type": "integer",
      "description": "Air Quality Index value."
    },
    "category": {
      "type": "string",
      "description": "AQI category (e.g., Good, Moderate, Unhealthy)."
    },
    "pollutants": {
      "type": "object",
      "description": "Individual pollutant concentrations.",
      "properties": {
        "o3": {
          "type": "object",
          "description": "Ozone data."
        },
        "pm25": {
          "type": "object",
          "description": "PM2.5 particulate matter data."
        },
        "pm10": {
          "type": "object",
          "description": "PM10 particulate matter data."
        },
        "co": {
          "type": "object",
          "description": "Carbon monoxide data."
        },
        "no2": {
          "type": "object",
          "description": "Nitrogen dioxide data."
        },
        "so2": {
          "type": "object",
          "description": "Sulfur dioxide data."
        }
      }
    },
    "timestamp": {
      "type": "integer"
    },
    "dateTimeISO": {
      "type": "string",
      "format": "date-time"
    }
  }
}