封面图片
2022年, 第16卷 第10期
Front Cover Story (See: Heidelore Fiedler, Mohammad Sadiaa, Thomas Krauss, Abeer Baabish, Leo W.Y. Yeung, 2022, 16(10): 132)
Applying a well-established protocol to assess persistent organic pollutants (POPs), human milk samples – as national pools – were analyzed for perfluoroalkane substances (PFAS), which are emerging contaminants. In 101 samples consisting of 86 national pools and 15 pools from States in Brazil obtained between 2008 and 2019, perfluorooctane carboxylic acid (PFOA) was present in all samples, followed by perfluorosulfonic acid (92 % detection frequency); PFHxS was detected in only 17 % of the national pools. Other PFAS had either low detection frequencies and median values of zero (carboxylic acids C4–C11; except PFOA) or could not be quantified in any sample (sulfonic acids, C4–C10, and long-chain carboxylic acids, C12–C14). Whereas median values were almost identical (18.9 pg/g f.w. for PFOS; 18.6 pg/g f.w. for PFOA), PFOS showed larger ranges (< 6.2–212 pg/g f.w.) than PFOA (< 6.2–63.4 pg/g f.w.) and also had the highest value measured in all samples. For the relatively short period where samples were available, no time trends could be established. Using the World Bank classification (WBC), it was shown that wealthier countries (high income) had higher PFOA concentrations than poorer countries (low income countries).[展开] ...
ISSN 2095-2201N (Print)
ISSN 2095-221X (Online)
CN 10-1013/X
Postal Subscription Code 80-973
原刊名 Frontiers of Environmental Science & Engineering in China 2018 Impact Factor: 3.883