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. 2011 Feb 8;119(6):815–820. doi: 10.1289/ehp.1003100

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Mean ± SD BaP_eq concentration profile of the individual PAHs during the source control, nonsource control, Olympic, and non-Olympic periods.

*p < 0.05 between source control and nonsource control periods; ^#p < 0.05 between Olympic and non-Olympic periods.