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        "fid": "22043",
        "Fecha": "1997\/01\/01",
        "Pb": "0",
        "CO": "1,7",
        "NO": "16",
        "NO2": "26",
        "NOx": "51",
        "O3": "34",
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    {
        "fid": "22044",
        "Fecha": "1997\/01\/02",
        "Pb": "0",
        "CO": "1,4",
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        "NO2": "24",
        "NOx": "45",
        "O3": "41",
        "SO2": "4",
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    {
        "fid": "22045",
        "Fecha": "1997\/01\/03",
        "Pb": "0,07",
        "CO": "1,2",
        "NO": "11",
        "NO2": "20",
        "NOx": "36",
        "O3": "51",
        "SO2": "5",
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    },
    {
        "fid": "22046",
        "Fecha": "1997\/01\/04",
        "Pb": "0,04",
        "CO": "1,1",
        "NO": "12",
        "NO2": "15",
        "NOx": "33",
        "O3": "59",
        "SO2": "6",
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    },
    {
        "fid": "22047",
        "Fecha": "1997\/01\/05",
        "Pb": "0,12",
        "CO": "2,6",
        "NO": "24",
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        "NOx": "70",
        "O3": "26",
        "SO2": "11",
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    },
    {
        "fid": "22048",
        "Fecha": "1997\/01\/06",
        "Pb": "0,02",
        "CO": "0,8",
        "NO": "8",
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        "NOx": "25",
        "O3": "65",
        "SO2": "3",
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    },
    {
        "fid": "22049",
        "Fecha": "1997\/01\/07",
        "Pb": "0,14",
        "CO": "1,7",
        "NO": "21",
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        "NOx": "61",
        "O3": "34",
        "SO2": "16",
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    },
    {
        "fid": "22050",
        "Fecha": "1997\/01\/08",
        "Pb": "0,12",
        "CO": "2,1",
        "NO": "25",
        "NO2": "29",
        "NOx": "67",
        "O3": "26",
        "SO2": "15",
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    },
    {
        "fid": "22051",
        "Fecha": "1997\/01\/09",
        "Pb": "0,06",
        "CO": "1,3",
        "NO": "16",
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        "NOx": "43",
        "O3": "50",
        "SO2": "12",
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    },
    {
        "fid": "22052",
        "Fecha": "1997\/01\/10",
        "Pb": "0,16",
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        "NO": "14",
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        "NOx": "39",
        "O3": "44",
        "SO2": "15",
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    },
    {
        "fid": "22053",
        "Fecha": "1997\/01\/11",
        "Pb": "0,25",
        "CO": "2,4",
        "NO": "31",
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        "NOx": "78",
        "O3": "25",
        "SO2": "20",
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    },
    {
        "fid": "22054",
        "Fecha": "1997\/01\/12",
        "Pb": "0,26",
        "CO": "2,2",
        "NO": "24",
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        "NOx": "65",
        "O3": "24",
        "SO2": "13",
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    {
        "fid": "22055",
        "Fecha": "1997\/01\/13",
        "Pb": "0,33",
        "CO": "2,3",
        "NO": "30",
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        "NOx": "81",
        "O3": "30",
        "SO2": "15",
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    },
    {
        "fid": "22056",
        "Fecha": "1997\/01\/14",
        "Pb": "0,27",
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        "NOx": "72",
        "O3": "37",
        "SO2": "21",
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    {
        "fid": "22057",
        "Fecha": "1997\/01\/15",
        "Pb": "0,24",
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        "O3": "45",
        "SO2": "6",
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        "fid": "22058",
        "Fecha": "1997\/01\/16",
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        "O3": "30",
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        "fid": "22059",
        "Fecha": "1997\/01\/17",
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        "O3": "33",
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        "fid": "22060",
        "Fecha": "1997\/01\/18",
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        "fid": "22061",
        "Fecha": "1997\/01\/19",
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        "fid": "22062",
        "Fecha": "1997\/01\/20",
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        "fid": "22063",
        "Fecha": "1997\/01\/21",
        "Pb": "0",
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        "fid": "22064",
        "Fecha": "1997\/01\/22",
        "Pb": "0",
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        "Fecha": "1997\/01\/23",
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        "fid": "22066",
        "Fecha": "1997\/01\/24",
        "Pb": "0",
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        "fid": "22067",
        "Fecha": "1997\/01\/25",
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        "Fecha": "1997\/01\/26",
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        "Fecha": "1997\/01\/27",
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        "Fecha": "1997\/01\/30",
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        "fid": "22073",
        "Fecha": "1997\/01\/31",
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        "fid": "22074",
        "Fecha": "1997\/02\/01",
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        "fid": "22075",
        "Fecha": "1997\/02\/02",
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        "fid": "22076",
        "Fecha": "1997\/02\/03",
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        "O3": "17",
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    {
        "fid": "22077",
        "Fecha": "1997\/02\/04",
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        "O3": "33",
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    {
        "fid": "22078",
        "Fecha": "1997\/02\/05",
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        "O3": "23",
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    {
        "fid": "22079",
        "Fecha": "1997\/02\/06",
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    {
        "fid": "22080",
        "Fecha": "1997\/02\/07",
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    {
        "fid": "22081",
        "Fecha": "1997\/02\/08",
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    {
        "fid": "22082",
        "Fecha": "1997\/02\/09",
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    {
        "fid": "22083",
        "Fecha": "1997\/02\/10",
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        "fid": "22084",
        "Fecha": "1997\/02\/11",
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    {
        "fid": "22085",
        "Fecha": "1997\/02\/12",
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    {
        "fid": "22086",
        "Fecha": "1997\/02\/13",
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    {
        "fid": "22087",
        "Fecha": "1997\/02\/14",
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    {
        "fid": "22088",
        "Fecha": "1997\/02\/15",
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    {
        "fid": "22089",
        "Fecha": "1997\/02\/16",
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    {
        "fid": "22090",
        "Fecha": "1997\/02\/17",
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        "Fecha": "1997\/12\/11",
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