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     "values": [
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     "groupId": "0",
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     "label": "> 10     - 12,5",
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     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    {
     "label": ">   7,5  - 10",
     "url": "d4e3fc4c633d702acc2fcba3d8c17d6b",
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     "groupId": "0",
     "height": 20,
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     "groupId": "0",
     "height": 20,
     "width": 20,
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   "layerName": "PM10_A_SPOTS_2010",
   "layerType": "Feature-Layer",
   "minScale": 0,
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   "legend": [
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     "label": "> 50",
     "url": "0d80f9116dc056421a63b59b61994dd4",
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     "groupId": "0",
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     "contentType": "image/png",
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     "label": "> 50",
     "url": "0d80f9116dc056421a63b59b61994dd4",
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     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    {
     "label": "> 17,5  - 20",
     "url": "7facbef2240aab5f661933a1be8b68a2",
     "imageData": "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",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     "groupId": "0",
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     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
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     "values": [
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    {
     "label": "> 10     - 12,5",
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     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": ">   7,5  - 10",
     "url": "d4e3fc4c633d702acc2fcba3d8c17d6b",
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     "groupId": "0",
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     "label": "≤   7,5",
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     "groupId": "0",
     "height": 20,
     "width": 20,
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    },
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   "legendGroups": [
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   "layerName": "PM10_A_SPOTS_2014",
   "layerType": "Feature-Layer",
   "minScale": 0,
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   "legend": [
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     "label": "> 50",
     "url": "0d80f9116dc056421a63b59b61994dd4",
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     "contentType": "image/png",
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     "label": "> 50",
     "url": "0d80f9116dc056421a63b59b61994dd4",
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     "contentType": "image/png",
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     "label": "> 50",
     "url": "0d80f9116dc056421a63b59b61994dd4",
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     "label": "> 30",
     "url": "0d80f9116dc056421a63b59b61994dd4",
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     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    {
     "label": "> 17,5  - 20",
     "url": "7facbef2240aab5f661933a1be8b68a2",
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     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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     "contentType": "image/png",
     "groupId": "0",
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    {
     "label": "> 10     - 12,5",
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     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    },
    {
     "label": ">   7,5  - 10",
     "url": "d4e3fc4c633d702acc2fcba3d8c17d6b",
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     "groupId": "0",
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     "groupId": "0",
     "height": 20,
     "width": 20,
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   "legendGroups": [
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   "layerName": "PM10_A_SPOTS_2022",
   "layerType": "Feature-Layer",
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   "legend": [
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     "label": "> 50",
     "url": "0d80f9116dc056421a63b59b61994dd4",
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     "groupId": "0",
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     "groupId": "0",
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     "groupId": "0",
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     "label": "> 70",
     "url": "0d80f9116dc056421a63b59b61994dd4",
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}