{
 "layers": [
  {
   "layerId": 0,
   "layerName": "AQ_Stations",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "7f2a27ffcaa2b112b3ad606582c694b6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAi0lEQVQ4jWNhoDJgGTWQYsAybAwsh9JHGRgYjlBqYHldU3IDiHHowIXfB/adbWVgYOgk10AbByfj6rKqWA4QB0R3tS1uaKqby4DLUBYCBlrbORiwEvYEBZEC8jY0LMkysBPkvUMHLlTDXAoNwyOUuLDzwL6zRw/sO2sN41PDy0cIJZfhl1OIBoPfQAARHSoqzy2yVQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "No2_Grid",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "13768eb1d4cc0ee56bd63919708eb6c3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UIQ4AIAxD0YoeDE4ON4NUQDbdyX1FEC8EUQI4KIzhvE1rRFDYNMElNL6wJDZoR5/INejHAiPVoN/7Q42j9swpDey/cLsNrQXPp9cQngAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "Pm25_Grid",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "13768eb1d4cc0ee56bd63919708eb6c3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4je3UIQ4AIAxD0YoeDE4ON4NUQDbdyX1FEC8EUQI4KIzhvE1rRFDYNMElNL6wJDZoR5/INejHAiPVoN/7Q42j9swpDey/cLsNrQXPp9cQngAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}