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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Tremolada, Paolo Parolini, Marco Rossaro, Bruno Guazzoni, Niccolò Bignazzi, Marta Maria Binelli, Andrea |
| Description | Author Affiliation: Tremolada P ( Department of Biosciences, University of Milan, Via Celoria 26, Milan I-20133, Italy. Electronic address: paolo.tremolada@unimi.it.); Guazzoni N ( Department of Biosciences, University of Milan, Via Celoria 26, Milan I-20133, Italy.); Parolini M ( Department of Biosciences, University of Milan, Via Celoria 26, Milan I-20133, Italy.); Rossaro B ( Department of Food, Environmental and Nutritional Sciences, University of Milan, Via Celoria 2, Milan I-20133, Italy.); Bignazzi MM ( Department of Biosciences, University of Milan, Via Celoria 26, Milan I-20133, Italy.); Binelli A ( Department of Biosciences, University of Milan, Via Celoria 26, Milan I-20133, Italy.) |
| Abstract | A fugacity model reported in the literature was applied to a high-altitude pasture in the Italian Alps. The model takes into account three compartments (digestive tract, blood and fat tissues) in unsteady-state conditions using food as the contamination source. Disregarding biotransformation inside cow tissues, the predicted concentrations of 14 polychlorinated biphenyls (PCBs) in milk were in good agreement with the observed data, especially for congeners known for their resistance to biotransformation (e.g., CB-138 and 153). In contrast, the predicted concentrations were clearly overestimated for congeners with high biotransformation susceptibilities. Therefore data measured in milk and faeces were used to calculate the first-order-biotransformation rate constants in dairy cows. The PCB absorption efficiency observed for pasture conditions was lower than that observed in the cowshed. The final version of the model included biotransformation and observed PCB absorption and was able to predict PCB concentrations in cow milk with mean differences between the predicted and measured data below ± 20% for most congeners. |
| ISSN | 00489697 |
| Volume Number | 487 |
| e-ISSN | 18791026 |
| Journal | Science of The Total Environment |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-07-15 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Environmental Monitoring Methods Environmental Pollutants Analysis Milk Chemistry Models, Biological Polychlorinated Biphenyls Animals Cattle Female Journal Article Validation Studies Discipline Environmental Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Waste Management and Disposal Pollution Environmental Engineering |
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