fig2

Figure 2. Diagnostic ratios of persistent organochlorine compounds in breast milk samples. (A) Ratio of α-hexachlorocyclohexane (α-HCH) to γ-hexachlorocyclohexane (γ-HCH) (N = 48); (B) Ratio of [p,p’-DDE + p,p’-DDD] to total DDTs (N = 74). These ratios provide insight into environmental sources and degradation patterns. DDE: Dichlorodiphenyldichloroethylene; HCH: hexachlorocyclohexanes; DDD: dichlorodiphenyldichloroethane; DDT: dichlorodiphenyltrichloroethane; HCH: hexachlorocyclohexanes.