Figure 1From: Hazardous air pollutants and breast cancer risk in California teachers: a cohort studyDistribution of the 24 mammary gland carcinogen concentrations among the 112,378 female participants, including percentage of participants with concentration of zero. Boxplot whiskers extend to minimum and maximum of data distribution. Zero values were set to the minimum non-zero value observed for the compound divided by two in order to be accommodated on the log scale.Back to article page