... modified effects of OC and/or sulfate with larger effects among those carrying the wild type of GSTP1, catalase, non-wild type of GC and thenon-null of GSTM1.Conclusions: Polymorphisms of oxidative ... pollutants often thought of as secondary orformed through photochemical reactions after emission(PM2.5,nitrogendioxide,NO2, maximal one-hourozone, O3, su lfate, SO42-or organic carbon, OC), ... Environmental Health 2010, 9:78http://www.ehjournal.net/content/9/1/78Page 5 of 9more strongly associated with OC among those carryingthe wild type of CAT (rs2284367), the non-deletion of GSTM1...