A number of studies suggested that lead is related to the induction of oxidative stress, and alteration of immune response. In addition, modifying these toxic effects varied partly by GST polymorphism. e objectives of this study were to assess the association between the lead-induced alteration in serum hs-CRP, with GSTM1, GSTT1, and GSTP1 Val105Ile genetic variations and the health consequence from environmental lead exposure. e 924 blood samples were analyzed for blood lead, CRP, and genotyping of three genes with real-time PCR. Means of blood lead and serum hs-CRP were 5.45 g/dL and 2.07 mg/L. Both CRP and systolic blood pressure levels were signi�cantly higher for individuals with blood lead in quartile 4 (6.48-24.63 g/dL) compared with those in quartile 1 (1.23-3.47 g/dL,). In particular, in men with blood lead >6.47 g/dL the adjusted odds ratio (OR) of CRP levels for individuals with GSTP1 variants allele, GSTM1 null, GSTT1 null, double-null GSTM1, and GSTT1 compared with wild-type allele was 1.46 (95% CI; 1.05-2.20), 1.32 (95% CI; 1.03-1.69), 1.65 (95% CI; 1.17-2.35), and 1.98 (95% CI; 1.47-2.55), respectively. Our �ndings suggested that lead exposure is associated with adverse changes in in�ammatory marker and SBP. GST polymorphisms are among the genetic determinants related to lead-induced in�ammatory response.