Llobregat River (North-East Spain) is the most important drinking water source for Barcelona and its surrounding area. As one of the only water sources in the area the river water have been overexploited and effluents from more than 30 urban wastewater treatment plants, industries and agriculture runoffs have been discharged into the river. This article reviews the presence of emerging contaminants published during the last decades, emphasizing on the observed effects on ecosystems caused by the contamination. Pesticides, surfactants, estrogens, pharmaceuticals and personal care products and even abuse drugs are the main groups detected in different studies, reporting alterations in species composition, abundance or biomass and endocrine disruption measured by alterations in enzymatic activity or specific protein production. The information available provides an overview of the river status according to the Water Framework Directive.
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http://dx.doi.org/10.1016/j.envpol.2011.10.002 | DOI Listing |
Langmuir
January 2025
School of Nanoscience and Biotechnology, Shivaji University, Kolhapur, MH 416004, India.
In this study, we report the modification of a monolithic γ-aluminum oxy-hydroxide (γ-AlOOH) aerogel with cellulose nanofibers (CNFs) using the sol-gel method via supercritical drying. The optimized 2% CNF (w/w) results in a monolithic CNF-γ-AlOOH that is amorphous in nature, along with C-C and C-O-C functional groups. Transmission electron microscopy (TEM) images of the as-synthesized CNF-γ-AlOOH showed CNF embedded in the γ-AlOOH aerogel.
View Article and Find Full Text PDFEnviron Sci Technol
January 2025
U.S. Environmental Protection Agency/Office of Research and Development, Durham, North Carolina 27711, United States.
Humans experience widespread exposure to anthropogenic per- and polyfluoroalkyl substances (PFAS) through various media, which can lead to a wide range of negative health impacts. Tap water is an important source of exposure in communities with any degree of contamination but routine or large-scale PFAS monitoring often depends on targeted analytical methods limited to measuring specific PFAS. We analyzed 680 tap water samples from the American Healthy Homes Survey II for PFAS using non-targeted analysis (NTA) to expand the range of detectable PFAS.
View Article and Find Full Text PDFHeliyon
January 2025
MaREI Centre, University College Cork, Cork, Ireland.
Airborne wind energy is an emerging technology that can harness stronger and more consistent winds in higher altitudes using less mechanical and civil infrastructures than conventional wind energy systems. This article outlines a techno-economic study on using this technology for reverse osmosis seawater desalination in which a semi-permeable membrane process is used to remove salts and contaminants from water. To understand the techno-economic feasibility of such a system, this research work studies a 2 MW airborne wind-driven reverse osmosis plant.
View Article and Find Full Text PDFMar Pollut Bull
January 2025
Institute of Aquatic Ecology, HUN-REN Centre for Ecological Research, Karolina út 29-31, H-1113 Budapest, Hungary; National Laboratory for Water Sciences and Water Security, Institute of Aquatic Ecology, HUN-REN Centre for Ecological Research, Karolina út 29-31, H-1113 Budapest, Hungary; Institute of Chemistry, Eötvös Loránd University, Pázmány Péter sétány 1/A, H1113 Budapest, Hungary. Electronic address:
Microplastics (MPs) are an emerging environmental concern, but studies on these contaminants, particularly in river ecosystems, remain scarce. Research has indicated that MPs in the environment are predominantly microfibers (MFs); however, a few studies suggest that the MFs encountered are chiefly of natural origin. In this study, we aimed to improve the understanding of MP/MFs (both plastic and natural), among microparticle (solid particles >10 μm to <5000 μm; mainly of plastic as well as natural origin) loads in the Tiber River, Italy, by analyzing the physicochemical properties of surface water and assessing the abundance and characteristics of MPs-MFs at three sites: Ponte Grillo, Aniene, and Magliana, along a 60 km stretch.
View Article and Find Full Text PDFEnviron Toxicol Chem
January 2025
Aquatic Toxicology Laboratory, St Cloud State University, Minnesota, USA.
Treated municipal wastewater effluent is an important pathway for Contaminants of Emerging Concern (CEC) to enter aquatic ecosystems. As the aging wastewater infrastructure in many industrialized countries requires upgrades or replacement, assessing new treatment technologies in the context of CEC effects may provide additional support for science-based resource management. Here, we used three lines of evidence, analytical chemistry, fish exposure experiments, and fish and water microbiome analysis, to assess the effectiveness of membrane bioreactor treatment (MBR) to replace traditional activated sludge treatment.
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