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Author

Nuria Lozano

Bio: Nuria Lozano is an academic researcher from University of Cantabria. The author has contributed to research in topics: Biosolids & Triclocarban. The author has an hindex of 9, co-authored 11 publications receiving 435 citations. Previous affiliations of Nuria Lozano include University of Maryland, College Park.

Papers
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TL;DR: The decrease in TCS levels associated with observed increased levels of MeTCS in secondary and nitrification-denitrification processes providing evidence of TCS biotransformation.

155 citations

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TL;DR: The results suggest that TCS content of biosolids are rapidly dissipated when applied to agricultural fields, suggesting that there was a slight build-up of TCS, although the concentrations for these farms were low.

109 citations

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TL;DR: It is suggested that soil incorporation and degradation processes are taking place simultaneously and that TCS background levels are achieved within two years, suggesting in situ formation.

52 citations

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TL;DR: It is demonstrated that increased HRT, SRT, and temperature result in enhanced removal of TCS and TCC from wastewater during the activated sludge process, and a substantial formation of T CS into MeTCS was observed.

42 citations

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TL;DR: In this paper, the presence and the temporal trends of 12 perfluoroalkyl substances (PFASs), pollutants of global consequence, in limed Class B biosolids from a municipal water resource recovery facility (WRRF), also known as a wastewater treatment plant.

38 citations


Cited by
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Journal ArticleDOI
TL;DR: Many antibiotics were detected in the influents and effluents of WWTPs at concentrations close to or exceeding the predicted no-effect concentrations (PNECs) for resistance selection.

993 citations

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TL;DR: Concern has been raised over TCS's potential for endocrine disruption, as the antimicrobial has been shown to disrupt thyroid hormone homeostasis and possibly the reproductive axis, and there is strong evidence that aquatic species such as algae, invertebrates and certain types of fish are much more sensitive to TCS than mammals.
Abstract: Triclosan [5-chloro-2-(2,4-dichlorophenoxy)phenol; TCS] is a broad spectrum antibacterial agent used in personal care, veterinary, industrial and household products. TCS is commonly detected in aquatic ecosystems, as it is only partially removed during the wastewater treatment process. Sorption, biodegradation and photolytic degradation mitigate the availability of TCS to aquatic biota; however the by-products such as methyltriclosan and other chlorinated phenols may be more resistant to degradation and have higher toxicity than the parent compound. The continuous exposure of aquatic organisms to TCS, coupled with its bioaccumulation potential, have led to detectable levels of the antimicrobial in a number of aquatic species. TCS has been also detected in breast milk, urine and plasma, with levels of TCS in the blood correlating with consumer use patterns of the antimicrobial. Mammalian systemic toxicity studies indicate that TCS is neither acutely toxic, mutagenic, carcinogenic, nor a developmental toxicant. Recently, however, concern has been raised over TCS's potential for endocrine disruption, as the antimicrobial has been shown to disrupt thyroid hormone homeostasis and possibly the reproductive axis. Moreover, there is strong evidence that aquatic species such as algae, invertebrates and certain types of fish are much more sensitive to TCS than mammals. TCS is highly toxic to algae and exerts reproductive and developmental effects in some fish. The potential for endocrine disruption and antibiotic cross-resistance highlights the importance of the judicious use of TCS, whereby the use of TCS should be limited to applications where it has been shown to be effective.

733 citations

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TL;DR: To compare the existing sewage sludge management solutions in terms of their environmental sustainability, some basic criteria for the best suitable option selection has been described, in the circular economy “from waste to resources” sense.

482 citations

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TL;DR: The occurrence at trace levels of several PPCPs in drinking water raises concerns about possible implications for human health.

410 citations

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TL;DR: The concentrations found in this study, and their corresponding risk quotient, indicate a significant threat by PPCPs to the health of the Great Lakes, particularly near shore organisms.

396 citations