The purpose of the present study was to assess ejaculate contamination by polychlorinated dibenzo-p-dioxins/furans in male infertility. The database of 168 infertile and 49 fertile men was included in the study. Dioxin content was determined using gas chromatography/high-resolution mass spectrometry (GC/HRMS). In the ejaculate of infertile men, the content of dioxins and furans was 2.2-2.3 times higher than in fertile donors. The maximum level of the most toxic dioxin congener was detected in pathospermia. Contamination of semen of infertile men by polychlorinated dibenzo-p-dioxins/furans supports the hypothesis about the relationship between environmental factors and reproductive health.
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http://dx.doi.org/10.1007/s11356-014-3109-z | DOI Listing |
J Hazard Mater
December 2024
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310000, China; University of Chinese Academy of Sciences, Beijing 100049, China.
Liquid crystal monomers (LCMs) are potentially persistent, bioaccumulative, and toxic emerging pollutants. However, their occurrence in outdoor PM and related human exposure risks remain unknown. In this study, 32 composite samples were analyzed, which were prepared from daily PM samples collected throughout the year 2021 -2022 in Beijing, China.
View Article and Find Full Text PDFSci Total Environ
December 2024
Department of Environmental Science, Rutgers, the State University of New Jersey, United States of America. Electronic address:
Polychlorinated dibenzo-p-dioxins and -furans (PCDD/Fs) are contaminants of concern in the New York/New Jersey Harbor and in the organisms of the Newtown Creek Superfund site, which lies within the harbor. Because PCDD/Fs are never intentionally produced, identifying their sources can be challenging. In this work, sources of PCDD/Fs to the sediment of Newtown Creek were investigated using Positive Matrix Factorization (PMF) to analyze two data sets containing data on concentrations of (1) PCDD/Fs and (2) PCDD/Fs plus polychlorinated biphenyls (PCBs).
View Article and Find Full Text PDFEnviron Res
December 2024
Department of Epidemiology and Biostatistics, Imperial College London, London, UK; NIHR Health Protection Research Unit on Chemical Radiation Threats and Hazards, Imperial College London, London, UK; MRC Centre for Environment and Health, Imperial College London, London, UK; National Institute for Health Research (NIHR) Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, UK; Mohn Centre for Children's Health and Wellbeing, School of Public Health, Imperial College London, London, UK. Electronic address:
The objective of this study is to report recent PCDD/F and PCB human milk concentrations in the United Kingdom (UK) and relate these to two proxies for exposure to municipal waste incinerator (MWI) emissions. As part of the Breast milk, Environment, Early-life, and Development (BEED) study, primiparous individuals were recruited from within 20 km of English MWIs between 2013 and 2015 and asked to provide human milk samples. The samples were analysed for quantitative concentrations of 17 PCDD/F and 12 PCB congeners.
View Article and Find Full Text PDFEnviron Pollut
January 2025
Department of Environmental Engineering, Faculty of Engineering, Bursa Uludag University, 16059, Nilüfer, Bursa, Turkey. Electronic address:
Polychlorinated dibenzo-p-dioxins/furans (PCDD/Fs) are toxic and persistent pollutants that raise concerns due to their accumulative characteristics in the environments and biota. Atmospheric PCDD/Fs can enter various recipient environments and impact the entire ecosystem, thereby arousing more attention. Dry deposition is deemed the dominant migration pathway of atmospheric PCDD/Fs owing to their predominant distributions in the particulate phase.
View Article and Find Full Text PDFEcotoxicol Environ Saf
December 2024
School of Natural Sciences, Faculty of Science and Engineering, Macquarie University, NSW 2109, Australia; Environment Protection Authority Victoria, Centre for Applied Sciences, Ernest Jones Drive, Macleod, Melbourne, VIC 3085, Australia.
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