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11.
Cristani M Naccari C Nostro A Pizzimenti A Trombetta D Pizzimenti F 《Environmental science and pollution research international》2012,19(1):161-168
Background, aim and scope
Metal pollution is a serious problem for environmental safety and programmes of monitoring and bioremediation are needed. Among the processes of bioremediation, the use of microbes to remove and degrade contaminants is considered a biotechnological approach to clean up polluted environments. 相似文献12.
Romero-Franco M Hernández-Ramírez RU Calafat AM Cebrián ME Needham LL Teitelbaum S Wolff MS López-Carrillo L 《Environment international》2011,37(5):867-871
Sources of phthalates other than Polyvinyl chloride (PVC) related products are scarcely documented in Mexico. The objective of our study was to explore the association between urinary levels of nine phthalate metabolites and the use of personal care products. Subjects included 108 women who participated as controls in an ongoing population-based case-control study of environmental factors and genetic susceptibility to breast cancer in northern Mexico. Direct interviews were performed to inquire about sociodemographic characteristics, reproductive history, use of personal care products, and diet. Phthalate metabolites measured in urine by high performance liquid chromatography-isotope dilution tandem mass spectrometry were monoethyl phthalate (MEP), monobenzyl phthalate (MBzP), mono-n-butyl phthalate (MBP), mono-isobutyl phthalate (MiBP), mono-3-carboxypropyl phthalate (MCPP) as well as mono-2-ethylhexyl phthalate (MEHP), mono-2-ethyl-5-oxohexyl phthalate (MEOHP), mono-2-ethyl-5-hydroxyhexyl phthalate (MEHHP), mono-2-ethyl-5-carboxypentyl phthalate (MECPP) that are metabolites of di-ethylhexyl phthalate (DEHP). Detectable urinary concentrations of phthalate metabolites varied from 75% (MEHP) to 100% (MEP, MBP, MEOHP, MEHHP and MECPP). Medians of urinary concentrations of some phthalate metabolites were significantly higher among users of the following personal care products compared to nonusers: body lotion (MEHHP, MECPP and sum of DEHP metabolites (ΣDEHP)), deodorant (MEHP and ΣDEHP), perfume (MiBP), anti-aging facial cream (MEP, MBP and MCPP) and bottled water (MCPP, MEHHP and MEOHP). Urinary concentrations of MEP showed a positive relationship with the number of personal care products used. Our results suggest that the use of some personal care products contributes to phthalate body burden that deserves attention due to its potential health impact. 相似文献
13.
Bugueño-Carrasco Sebastián Monteil Hélène Toledo-Neira Carla Sandoval Miguel Ángel Thiam Abdoulaye Salazar Ricardo 《Environmental science and pollution research international》2021,28(19):23753-23766
Environmental Science and Pollution Research - In this study, the simultaneous degradation of antibiotics (ampicillin, sulfamethazine, and tetracycline; and non-steroidal anti-inflammatories... 相似文献
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Martínez Jaxiry Shamara Barroso González Antonia Sandoval López Mónica Cerro Ayala Fabricio Espejel Mijangos Jesús Cárdenas de Jesús Treviño Reséndez José Vöng Yunny Meas Rocha Juan Manríquez Bustos Erika Bustos 《Environmental science and pollution research international》2022,29(28):42130-42145
Environmental Science and Pollution Research - One of the most widely used antibiotics is amoxicillin (AMX), which is the most widely used in humans and animals, but it is discharged metabolically... 相似文献
15.
M. Díaz-Jaramillo N. Sandoval R. Barra P. Gillet C. Valdovinos 《Chemistry and Ecology》2013,29(4):308-319
Reproductive and population-level responses are ecologically relevant diagnostic tools for revealing the cost of long-term tolerance to contaminants. Spatial density distribution, seasonal density, biomass, size frequency histograms and oocytes stages in Perinereis gualpensis (Polychaeta: Nereididae) from a highly anthropogenically impacted estuary (Lenga, south-central Chile) were compared with low-polluted estuaries (Tubul and Raqui). Spatial distribution showed that the highest P. gualpensis abundances occur in the central (middle) estuarine area, establishing them as suitable zones for comparisons of estuaries. Middle areas also showed differences among estuaries in terms of population and reproductive responses. Mature stage oocytes and juvenile recruitment limited to certain seasons and low adult survival led to significant low densities and biomasses in Lenga individuals (p?.05). Conversely, high densities and biomass, continuous recruitment and mature oocyte occurrence were observed in Tubul–Raqui estuaries. These results reflected population and reproductive differences among high- and low-polluted estuaries, suggesting that chronic pollution status in Lenga estuary is a factor to be considered when evaluating these responses. 相似文献
16.
Hipólito Amanda Caretta Talita de Oliveira Silveira Victória Akemi Itakura Bersaneti Gabrielly Terassi Mali Suzana Celligoi Maria Antonia Pedrine Colabone 《Journal of Polymers and the Environment》2021,29(10):3199-3209
Journal of Polymers and the Environment - Sophorolipids are glycolipid biosurfactants produced by the yeast Starmerella bombicola. They have great potential for application in the food industry due... 相似文献
17.
Revealing the Diversity of Natural Hydrologic Regimes in California with Relevance for Environmental Flows Applications 下载免费PDF全文
Belize A. Lane Helen E. Dahlke Gregory B. Pasternack Samuel Sandoval‐Solis 《Journal of the American Water Resources Association》2017,53(2):411-430
Alterations to flow regimes for water management objectives have degraded river ecosystems worldwide. These alterations are particularly profound in Mediterranean climate regions such as California with strong climatic variability and riverine species highly adapted to the resulting flooding and drought disturbances. However, defining environmental flow targets for Mediterranean rivers is complicated by extreme hydrologic variability and often intensive water management legacies. Improved understanding of the diversity of natural streamflow patterns and their spatial arrangement across Mediterranean regions is needed to support the future development of effective flow targets at appropriate scales for management applications with minimal resource and data requirements. Our study addresses this need through the development of a spatially explicit reach‐scale hydrologic classification for California. Dominant hydrologic regimes and their physio‐climatic controls are revealed, using available unimpaired and naturalized streamflow time‐series and generally publicly available geospatial datasets. This methodology identifies eight natural flow classes representing distinct flow sources, hydrologic characteristics, and catchment controls over rainfall‐runoff response. The study provides a broad‐scale hydrologic framework upon which flow‐ecology relationships could subsequently be established towards reach‐scale environmental flows applications in a complex, highly altered Mediterranean region. 相似文献
18.
This study was carried out in order to assess the effects of disinfectant-treatment on antioxidant response of Cyprinus carpio L. Therefore, enzymatic activities of glutathione S-transferases, glyoxalase I, glyoxalase II, glutathione peroxidases, glutathione reductase, catalase and total glutathione content of carp liver, exposed to surface water treated with three disinfectants for potabilization, sodium hypochlorite, chlorine dioxide and peracetic acid were investigated. Specimens of carp were exposed in four experimental tanks supplied with a continuous water flow from Lake Trasimeno (Italy), three of them treated with constant concentration of sodium hypochlorite, chlorine dioxide and peracetic acid, for 10 and 20 days, while the control tank was supplied with untreated lake water. Differences in biochemical parameters were observed in specimens following exposure to these disinfectants and mainly, chlorine compounds induced marked biochemical variations of carp liver, compared to those induced by peracetic acid treatment. Our results showed that antioxidant parameters of Cyprinus carpio could be used as biomarkers of oxidative stress when this species is exposed to disinfectants for water potabilization. 相似文献
19.
Gene expression experiments were targeted in order to monitor the ABC efflux transporters, which is potentially involved in cellular detoxification/defense. Changes in expression levels of different ABC genes in kidney of Oncorhynchus mykiss fed with melamine and melamine + cyanuric acid enriched diets were recorded in both treated groups by mRNA ΔΔCT relative quantification method. Expression profiles of eight different ABC genes basically showed low alterations in melamine group and more consistent changes in melamine + cyanuric acid treated fish, compared with own control. In the last group ABCC2 gene over expression was the more evident alteration. These results suggest that ABC efflux system could be involved in mobilization of hydrophilic molecules in the forcing condition of chronic exposure. 相似文献
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