Figure 7From: Cytokine release from alveolar macrophages exposed to ambient particulate matter: Heterogeneity in relation to size, city and seasonRelease of IL-6 from alveolar rat macrophages after exposure to 20 μg/ml of the coarse (C) PM samples collected during the summer season, EHC-93 or LPS with or without treatment of polymyxin B sulphate. Values are mean ± SEM (n = 3).Back to article page