{
  "$schema": "https://json-structure.org/meta/core/v0/#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/weatherapi/refs/heads/main/json-structure/weatherapi-air-quality-structure.json",
  "name": "AirQuality",
  "description": "Air quality data. Returned when aqi=yes.",
  "type": "object",
  "properties": {
    "co": {
      "type": "double",
      "description": "Carbon monoxide µg/m³",
      "example": 1.0
    },
    "o3": {
      "type": "double",
      "description": "Ozone µg/m³",
      "example": 1.0
    },
    "no2": {
      "type": "double",
      "description": "Nitrogen dioxide µg/m³",
      "example": 1.0
    },
    "so2": {
      "type": "double",
      "description": "Sulphur dioxide µg/m³",
      "example": 1.0
    },
    "pm2_5": {
      "type": "double",
      "description": "PM2.5 µg/m³",
      "example": 1.0
    },
    "pm10": {
      "type": "double",
      "description": "PM10 µg/m³",
      "example": 1.0
    },
    "us-epa-index": {
      "type": "int32",
      "description": "US EPA index 1–6 (1=Good, 6=Hazardous)",
      "example": 1
    },
    "gb-defra-index": {
      "type": "int32",
      "description": "UK DEFRA index 1–10",
      "example": 1
    }
  }
}