
Keywords: CH2Cl2، dichloromethane; BDL, below detection level; BMI, body mass index; CH2Cl2, dichloromethane; CMMR, Alkek Center for Metagenomics and Microbiome Research; CVAFS, cold vapor atomic fluorescence spectrometry; DDI-H2O, double-distilled water; FDR, False Discovery Rate; GC, gas