Journal of Analytical Methods in Chemistry

Research Article

Determination of Per- and Polyfluoroalkyl Substances in Craft Villages and Industrial Environments of Vietnam

Table 3

Concentrations (median and range, ng/L) of PFASs in surface water from selected craft villages in Vietnam.
Sampling areas (number of samples)PFHxAPFOAPFNAPFDAPFUDAPFDoAPFHxSPFOSΣ8 PFASs
Textile-dyeing villages
Van Phuc (Ha Noi) (n = 15)1.14 (<0.26–1.42)2.04 (0.83–3.48)<0.41<0.36 (<0.36–1.90)<0.49<0.29 (<0.29–1.44)<0.31<0.19 (<0.19–3.91)4.67 (0.83–8.65)
Hoi Quan (Bac Ninh) (n = 15)9.75 (3.24–17.8)3.20 (3.27–4.66)<0.41 (<0.41–3.56)<0.36 (<0.36–1.52)<0.49<0.29 (<0.29–11.92)<0.31 (<0.31–0.77)0.38 (<0.19–1.00)13.4 (5.30–32.4)
Paper recycling villages         
Phong Khe (Bac Ninh) (n = 15)3.16 (5.21–23.8)4.97 (3.15–27.4)2.26 (1.05–7.24)1.19 (<0.36–2.43)<0.49<0.29<0.31 (<0.31–0.98)1.66 (0.23–3.90)13.9 (7.74–58.2)
Plastics-recycling villages
Nhu Quynh (Hung Yen) (n = 15)2.32 (0.63–9.72)4.03 (2.00–8.61)0.50 (<0.41–3.50)<0.36 (<0.36–2.63)<0.49 (<0.49–1.96)<0.29 (<0.29–0.73)<0.31 (<0.31–0.50)2.97 (1.83–7.36)11.5 (5.06–28.8)
Total concentrations of all samples (n = 60)2.64 (<0.26–23.8)3.43 (0.83–27.4)0.32 (<0.41–7.24)0.52 (<0.36–2.63)<0.49 (<0.49–1.96)<0.29 (<0.29–11.92)<0.31 (<0.31–0.98)0.90 (<0.19–7.36)10.68 (0.83–8.2)
Detection frequency (%)981005258882080