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91.
Almeida Filipa Nunes Bruno 《Environmental science and pollution research international》2019,26(10):9823-9831
Environmental Science and Pollution Research - The growing use of pharmaceutical drugs has become a major environmental issue considering that these substances (or their metabolites) end up... 相似文献
92.
Lobo Maria Tereza Morais Pereira Souza Scalize Paulo Sérgio Kraus Cleber Nunes da Silva Weliton José Garnier Jérémie da Motta Marques David Bonnet Marie-Paule de Souza Nogueira Ina 《Environmental science and pollution research international》2020,27(10):10642-10657
Environmental Science and Pollution Research - Canadian Water Quality Index (CWQI) provides protection for freshwater life promoting healthy ecosystems and safeguarding human health. Biological... 相似文献
93.
Nogueira Ana Filipa Nunes Bruno 《Environmental science and pollution research international》2021,28(21):26772-26783
Environmental Science and Pollution Research - Pharmaceuticals are significant environmental stressors, since they are utilized around the world; they are usually released in to the aquatic system... 相似文献
94.
Pharmaceuticals are continuously dispersed into the environment as a result of human and veterinary use, posing relevant environmental concerns. The present paper reports the acute toxic effects of three therapeutic agents (diazepam, clofibrate and clofibric acid) and a detergent, sodium dodecylsulphate (SDS), to the hypersaline crustacean Artemia parthenogenetica. This study specially focused on oxidative stress parameters, namely (1) total and selenium-dependent glutathione-peroxidase (GPx), (2) glutathione reductase (GRed), (3) total superoxide dismutase (SOD), and (4) glutathione-S-transferases (GSTs). The effects of tested substances on lipid peroxidation (thiobarbituric acid reactive substances, TBARS), and soluble cholinesterases (ChE) were also investigated. Diazepam caused a significant inhibition of ChE (LOEC = 7.04 mg/l) and total GPx activities. SDS was responsible for a decrease in the activity of both ChE (LOEC = 8.46 mg/l) and GRed (LOEC = 4.08 mg/l). Both fibrates (clofibrate and clofibric acid) were responsible for significant decreases in Se-dependent GPx, with LOEC values of 176.34 and 3.09 mg/l, respectively. Clofibrate also caused a slight increase of TBARS content of A. parthenogenetica homogenates. These results indicate that the exposure to all the tested compounds induced alterations on the cellular redox status in A. parthenogenetica. In addition, diazepam was shown to have the capability of interfering with A. parthenogenetica neurotransmission, through the inhibition of ChE. 相似文献
95.
Three cultures were enriched from cork boiling wastewater using tannic acid as the selective carbon substrate, at 25 degrees C and pH 7.2, 25 degrees C and pH 4.7 and 50 degrees C and pH 4.7. The enrichment culture obtained at neutral pH was composed of five culturable isolates, whereas from each acidic enrichment two bacterial strains were isolated. Mesophilic isolates were Gram negative bacteria belonging to the genera Klebsiella, Pseudomonas, Stenotrophomonas and Burkholderia. Thermophilic isolates were members of the genus Bacillus. Despite the capability of the enrichment cultures to use tannic acid as single carbon and energy source, those cultures were unable to reduce the total polyphenols or the total organic carbon content of cork boiling wastewater. In order to increase the bioavailability of the organic carbon in cork boiling wastewater, biodegradation was preceded by Fenton oxidation. It was demonstrated that the combined process, using small amounts of Fenton reagents and biodegradative inoculum added almost simultaneously to cork boiling wastewater, leads to TOC reductions of more than 90%. 相似文献
96.
97.
Teresa Moura Carla Nunes Narcisa Bandarra Leonel Serrano Gordo Ivone Figueiredo 《Marine Biology》2011,158(2):401-412
The embryonic development and the level of dependency of the embryos from the maternal organism were investigated for Centroscymnus coelolepis. During the development, there is a 22–32% loss of organic matter and gains of 95–122% and 29–46% on moisture and inorganic
matter, respectively. Only 28–48% of the initial yolk energy is conserved in embryos, being the remaining used in catabolism.
In late pregnancy, the epithelium thickness of uterine villi decreases and vascularity increases. Results suggest that only
water and minerals are transferred from the mother to the embryos. Monounsaturated fatty acids are the main type of fatty
acids representing 48% of the total yolk fatty acid content, followed by polyunsaturated (30%) and saturated fatty acids (18–21%). 相似文献
98.
Mercury and methyl mercury ratios in caimans (Caiman crocodilus yacare) from the Pantanal area, Brazil 总被引:1,自引:0,他引:1
Vieira LM Nunes Vda S Amaral MC Oliveira AC Hauser-Davis RA Campos RC 《Journal of environmental monitoring : JEM》2011,13(2):280-287
The Pantanal region is the largest floodplain area in the world and of great biological importance due to its unique flora and fauna. This area is continuously undergoing increasing anthropogenic threats, and has also experienced mercury contamination associated with gold mining and other anthropogenic activities. Pantanal caimans are top-level predators, and, as such, show great potential to accumulate mercury (Hg) by biomagnification. In this study 79 specimens from four locations in the Pantanal were analyzed for total Hg and methyl mercury (MeHg) by cold vapor atomic absorption spectrometry. Total Hg contents ranged from 0.02 to 0.36 μg g(-1) (ww), and most specimens presented MeHg ratios above 70%. One of the sites, impacted by anthropogenic activities, presented significantly higher total Hg in comparison to three less impacted sites, supporting the hypothesis that caimans can, in fact, be considered effective bioindicators of ecosystem health. 相似文献
99.
100.
Andrade Mariana Carvalho Araujo Nara Santos Vianna Maria Isabel Pereira Cangussu Maria Cristina Teixeira Gomes-Filho Isaac Suzart Ribeiro Daniel Araki Cury Patrícia Ramos dos Santos Jean Nunes 《Environmental science and pollution research international》2021,28(43):60717-60725
Environmental Science and Pollution Research - Studies have shown that domestic waste collectors are exposed to toxicants including infectious pathogens, which may be linked to their oral health... 相似文献