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Contains PM10 Mass (81102) data throughout the U.S. for the year 1997
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Contains PMc Mass (86101) data throughout the U.S. for the year 1998
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Contains PM10 Mass (81102) data throughout the U.S. for the year 1998
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Contains PMc Mass (86101) data throughout the U.S. for the year 1999
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Contains PM10 Mass (81102) data throughout the U.S. for the year 1999
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Contains PMc Mass (86101) data throughout the U.S. for the year 2000
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Contains PM10 Mass (81102) data throughout the U.S. for the year 2000
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Contains PMc Mass (86101) data throughout the U.S. for the year 2001
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Contains PM10 Mass (81102) data throughout the U.S. for the year 2001
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Contains PMc Mass (86101) data throughout the U.S. for the year 2002
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Contains PM10 Mass (81102) data throughout the U.S. for the year 2002
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Contains PMc Mass (86101) data throughout the U.S. for the year 2003
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Contains PM10 Mass (81102) data throughout the U.S. for the year 2003
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Contains PMc Mass (86101) data throughout the U.S. for the year 2004
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Contains PM10 Mass (81102) data throughout the U.S. for the year 2004
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Contains PMc Mass (86101) data throughout the U.S. for the year 2005
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Contains PM10 Mass (81102) data throughout the U.S. for the year 2005
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Contains PMc Mass (86101) data throughout the U.S. for the year 2006
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Contains PM10 Mass (81102) data throughout the U.S. for the year 2006
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Contains PMc Mass (86101) data throughout the U.S. for the year 2007