Fig. 9From: Cytotoxic and inflammatory potential of size-fractionated particulate matter collected repeatedly within a small urban areaAssociation of endotoxin with biological effects. Potency estimates were calculated using the results of 3 independent experiments as described in Materials and Methods. Inflammatory potency was calculated as the average of all cytokine potencies, and average cytotoxic potency was calculated as the mean of potencies for lactate dehydrogenase release, resazurin reduction, and ATP content. a Inflammatory potency vs. endotoxin. b Cytotoxic potency in A549 cells vs. endotoxin. c Cytotoxic potency in J774 cells vs. endotoxin. Endotoxin values are presented as EU/mL/μgBack to article page