AAMA indicates 2-carbamoylethylmercapturic acid; AMCC, methylcarbamoylmercapturate; CEMA, cyanoethyl mercapturic acid; CYMA, N-acetyl-S-(2-cyanoethyl)-l-cysteine; DHBMA, dihydroxy-butyl-mercapturic acid; GAMA, carbamoyl-2-hydroxyethylmercapturate; HEMA, 2-hydroxyethylmercapturic acid; HPMA, hydroxypropylmercapturic acid; HPMMA, 3-hydroxy-1-methyl-propylmercapturic acid; MA, mandelic acid; MHA, methylhippuric acid; MHBMA, monohydroxybutenyl-mercapturic acid; PAH, polycyclic aromatic hydrocarbon; TNE-2, total nicotine equivalent-2; and VOC, volatile organic compound.