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. Author manuscript; available in PMC: 2013 Sep 16.
Published in final edited form as: Environ Int. 2012 May 14;45:112–121. doi: 10.1016/j.envint.2012.04.003

Table 1.

Description of Excluded Days

# Days

Total Number of days 2192
MISSING 450

 Elemental Composition 186
 Particle Number (PN) 166
 Black Carbon (BC) 51
 Elemental & PN 28
 Elemental & BC 8
 PN & BC 8
 Elemental & PN & BC 3

July 4th weekend 24
Outliers 2

Final Data Set 1716