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        "Fecha": "1998\/01\/02",
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        "O3": "18",
        "SO2": "10",
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        "fid": "217205",
        "Fecha": "1998\/01\/03",
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        "O3": "19",
        "SO2": "7",
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        "fid": "217206",
        "Fecha": "1998\/01\/04",
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    {
        "fid": "217207",
        "Fecha": "1998\/01\/05",
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        "SO2": "17",
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        "fid": "217208",
        "Fecha": "1998\/01\/06",
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        "SO2": "18",
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        "fid": "217209",
        "Fecha": "1998\/01\/07",
        "Pb": "0,07",
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        "O3": "8",
        "SO2": "19",
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    {
        "fid": "217210",
        "Fecha": "1998\/01\/08",
        "Pb": "0,11",
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        "O3": "7",
        "SO2": "32",
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        "fid": "217211",
        "Fecha": "1998\/01\/09",
        "Pb": "0,36",
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        "O3": "5",
        "SO2": "23",
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        "fid": "217212",
        "Fecha": "1998\/01\/10",
        "Pb": "0,2",
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        "O3": "7",
        "SO2": "10",
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        "fid": "217213",
        "Fecha": "1998\/01\/11",
        "Pb": "0,04",
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        "SO2": "7",
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    {
        "fid": "217214",
        "Fecha": "1998\/01\/12",
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        "SO2": "17",
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        "fid": "217215",
        "Fecha": "1998\/01\/13",
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        "fid": "217216",
        "Fecha": "1998\/01\/14",
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        "Fecha": "1998\/01\/20",
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        "fid": "217225",
        "Fecha": "1998\/01\/23",
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        "fid": "217232",
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        "fid": "217233",
        "Fecha": "1998\/01\/31",
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        "fid": "217234",
        "Fecha": "1998\/02\/01",
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        "fid": "217235",
        "Fecha": "1998\/02\/02",
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        "fid": "217236",
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        "fid": "217237",
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        "fid": "217238",
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        "fid": "217239",
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        "fid": "217240",
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    {
        "fid": "217241",
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        "fid": "217242",
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        "fid": "217243",
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        "fid": "217244",
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        "fid": "217245",
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        "fid": "217431",
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        "fid": "217434",
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        "fid": "217436",
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        "fid": "217520",
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        "fid": "217523",
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        "fid": "217524",
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        "fid": "217525",
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        "fid": "217527",
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        "fid": "217528",
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        "fid": "217529",
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        "fid": "217536",
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        "fid": "217537",
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        "fid": "217546",
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