Key Laboratory Pollution Control & Ecosystem Restoration in Industry Cluster

Guangzhou, China

Key Laboratory Pollution Control & Ecosystem Restoration in Industry Cluster

Guangzhou, China
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Huang R.-P.,South China University of Technology | Liu Z.-H.,South China University of Technology | Liu Z.-H.,Key Laboratory Pollution Control & Ecosystem Restoration in Industry Cluster | Liu Z.-H.,Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling | And 4 more authors.
Environmental Pollution | Year: 2017

To evaluate BPA's potential risk to health, it is important to know human daily intake. This study describes a simple but effective method to estimate the levels of human BPA intake among four different populations based on urinary concentration data. Nationally, of the 30 countries examined, the top ten countries for adult intake were Italy, Sweden, Denmark, France, Cyprus, Australia, Israel, Ghana, Jamaica, and Belgium. When the urinary excretion sample size was large enough and over 1000, it was found that the national estimated BPA daily intakes in the child group among countries, showed a good linear relationship with those of their corresponding adult group. Except the infant group with limited data, the global estimated BPA daily intakes for children and pregnant women were 2 and 1.4 times that of the adult group. Although the national and global estimated BPA daily intakes were generally below the temporary tolerable daily intake (tTDI) recommended by the European Food Safety Authority (EFSA), but some normal individuals' daily intakes exceeded the tTDI. © 2017 Elsevier Ltd


Liu Z.-H.,South China University of Technology | Liu Z.-H.,Key Laboratory Pollution Control & Ecosystem Restoration in Industry Cluster | Lu G.-N.,South China University of Technology | Lu G.-N.,Key Laboratory Pollution Control & Ecosystem Restoration in Industry Cluster | And 4 more authors.
Environmental Science and Pollution Research | Year: 2015

Natural estrogens are important endocrine disrupting compounds (EDCs), which may pose adverse effects on our environment. To avoid time-consuming sample preparation and chemical analysis, estimation of their concentrations in municipal wastewater based on their human urine/feces excretion rates has been generally adopted. However, the data of excretion rates available are very limited and show significant difference among countries. In the context of increasing reporting on the concentrations of natural estrogens in municipal wastewater around the world, this study presented a simple method to estimate their human excretion rates based on the concentrations of natural estrogens in raw sewage. The estimated human excretion rates of natural estrogens among ten countries were obtained, which totally covered over 33 million population. Among these, Brazilians had the largest excretion rates with estrone (E1) and 17β-estradiol (E2) as 236.9 and 60 μg/day/P, respectively, while Iran had the lowest value of 2 μg/day/P for E1 and 0.5 μg/day/P for E2. The average estimated human excretion rates of E1, E2, and estriol (E3) are 17.3, 6.4, and 39.7 μg/day/P, respectively. When the estimated human excretion rates obtained were applied for prediction, the predicted results showed better accuracies than those based on human urinary/feces excretion rates. The method in this study is simple, cost-effective and time-saving, which may be widely applied. © 2015, Springer-Verlag Berlin Heidelberg.


Liu Z.-H.,South China University of Technology | Liu Z.-H.,Key Laboratory Pollution Control & Ecosystem Restoration in Industry Cluster | Lu G.-N.,South China University of Technology | Lu G.-N.,Key Laboratory Pollution Control & Ecosystem Restoration in Industry Cluster | And 4 more authors.
Environmental Science and Pollution Research | Year: 2015

The main source of natural estrogens to municipal wastewater is human excretions via urine or feces, thus their concentrations in raw wastewater should show positive linear relationship with their human excretions. This study mainly focused on their concentration relationship in raw wastewater. Based on comparison between chemical analyses and predictions through human excretion rates, the observed concentrations of estriol (E3) in municipal wastewater were found to be noticeably lower than the predicted values. The main cause for the disparity is that substantial conjugated E3 also exists in raw wastewater. This work suggested that monitoring both E3 and its conjugates is necessary to get more accurate E3 removal performance of wastewater treatment plants (WWTPs). © 2014, Springer-Verlag Berlin Heidelberg.

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