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排序方式: 共有118条查询结果,搜索用时 15 毫秒
1.
A. M. Cicero M. G. Finoia M. Gabellini E. Veschetti 《Environmental monitoring and assessment》2000,64(3):607-616
The Italian guidelines concerning the dumping of dredgingmaterials implies chemical, physical and microbiologicalcharacterisation of dumping sediments collected through aspecific sampling strategy.POP's such as PCB's and organochlorine pesticides, areconsidered as priority pollutants in all the InternationalConventions for the protection of the marine environment, inconsequence of their persistence, toxicity and bioaccumulation capacity.In the present article the concentrations and distribution ofPCB's and organochlorine pesticides in dredging sediments ofPiombino harbour (northern Thyrrenian sea) were investigates.The results showed high POP's concentrations in all the studiedareas. The maximum values were: 3.94 mg kg-1 dry weight for PCB's(IUPAC Nos. 28; 52; 101, 118; 137; 153; 180; 209); 2.04 mg kg-1 d.w.for HCH's (-, -, - and -hexachlorocyclohexane isomers); 0.28 mg kg-1 d.w. for DD's (DDT + DDE + DDD).Subsequently, the data related to each pollutant were treatedwith statistical tests, in order to verify how well the samplingstrategy is able to represent the distribution of contaminantsin the dredging area. Finally, management strategies werederived for the studied dredging sediments. 相似文献
2.
A. M. Cicero M. Mecozzi R. Morlino D. Pellegrini E. Veschetti 《Environmental monitoring and assessment》2001,71(3):297-316
Dredging is a very important procedure for harbor management. InItaly the guidelines for the offshore dumping of dredged materials are issued by the Ministry of Environment. Theydescribed a few steps of dredging activities, such as thesampling strategy, but do not deal with limits or guide-valuesfor the chemical, physical and biological composition of theresulting sediments. The quality of dredged materials is mainlydependent on the presence of inorganic and organic pollutants.In particular, polychlorinated biphenyls (PCBs) and organo-chlorinated pesticides are seen as a high priority inmarine environment by international organizations because oftheir persistence, toxicity and bioaccumulation capacity.In this article the presence of some PCBs and organo-chlorinatedpesticides in sediment samples collected from the harbor ofLivorno (Northern Tyrrhenian Sea) was investigated. Theconcentration of HCHs, Aldrin, Chlordanes, DDEs, DDTs, and PCBsin 12 representative sites ranged between <1 g kg–1and 95, 19, 32, 35, 107, and 111 g kg–1, respectively.The application of univariate and multivariate statisticaltechniques, such as linear regression analysis and principalcomponent analysis, to the experimental data showed a differentdistribution of PCBs in the two sediment layers. On thecontrary, the vertical distribution of the other investigatedpollutants was more homogeneous and affected by randomvariability. The multivariate approach was an important tool to establish more rational criteria for the management of dredged materials. 相似文献
3.
Grover Madhuri Behl Tapan Bungau Simona Aleya Lotfi 《Environmental science and pollution research international》2021,28(13):15597-15606
Environmental Science and Pollution Research - Vetiver has a broad history of traditional medicinal uses, but only a handful of research article has reported its utility in treating diseases. But... 相似文献
4.
Kaur Ishnoor Behl Tapan Sehgal Aayush Singh Sukhbir Sharma Neelam Aleya Lotfi Bungau Simona 《Environmental science and pollution research international》2021,28(28):37060-37081
Environmental Science and Pollution Research - Mitochondria are unique cell organelles, which exhibit multifactorial roles in numerous cell physiological processes, significantly... 相似文献
5.
Sharma Neelam Zahoor Ishrat Sachdeva Monika Subramaniyan Vetriselvan Fuloria Shivkanya Fuloria Neeraj Kumar Naved Tanveer Bhatia Saurabh Al-Harrasi Ahmed Aleya Lotfi Bungau Simona Behl Tapan Singh Sukhbir 《Environmental science and pollution research international》2021,28(43):60459-60476
Environmental Science and Pollution Research - Meningitis is an inflammation of the protective membranes called meninges and fluid adjacent the brain and spinal cord. The inflammatory progression... 相似文献
6.
Arora Arpita Behl Tapan Sehgal Aayush Singh Sukhbir Sharma Neelam Mathew Bijo Bungau Simona 《Environmental science and pollution research international》2021,28(31):41517-41532
Environmental Science and Pollution Research - The mitochondria, apart from being known as the cell’s “powerhouse,” are crucial in the viability of nerve cells. Any damage to... 相似文献
7.
Behl Tapan Sehgal Aayush Grover Madhuri Singh Sukhbir Sharma Neelam Bhatia Saurabh Al-Harrasi Ahmed Aleya Lotfi Bungau Simona 《Environmental science and pollution research international》2021,28(31):41533-41551
Environmental Science and Pollution Research - The metabolic disorders are the edge points for the initiation of various diseases. These disorders comprised of several diseases including diabetes,... 相似文献
8.
Bruna Matturro Carla Ubaldi Paola Grenni Anna Barra Caracciolo Simona Rossetti 《Environmental science and pollution research international》2016,23(13):12613-12623
Polychlorobiphenyl (PCB) biodegradation was followed for 1 year in microcosms containing marine sediments collected from Mar Piccolo (Taranto, Italy) chronically contaminated by this class of hazardous compounds. The microcosms were performed under strictly anaerobic conditions with or without the addition of Dehalococcoides mccartyi, the main microorganism known to degrade PCBs through the anaerobic reductive dechlorination process. Thirty PCB congeners were monitored during the experiments revealing that the biodegradation occurred in all microcosms with a decrease in hepta-, hexa-, and penta-chlorobiphenyls (CBs) and a parallel increase in low chlorinated PCBs (tri-CBs and tetra-CBs). The concentrations of the most representative congeners detected in the original sediment, such as 245-245-CB and 2345-245-CB, and of the mixture 2356-34-CB+234-245-CB, decreased by 32.5, 23.8, and 46.7 %, respectively, after only 70 days of anaerobic incubation without any bioaugmentation treatment. Additionally, the structure and population dynamics of the microbial key players involved in the biodegradative process and of the entire mixed microbial community were accurately defined by Catalyzed Reporter Deposition Fluorescence In Situ Hybridization (CARD-FISH) in both the original sediment and during the operation of the microcosm. The reductive dehalogenase genes of D. mccartyi, specifically involved in PCB dechlorination, were also quantified using real-time PCR (qPCR). Our results demonstrated that the autochthonous microbial community living in the marine sediment, including D. mccartyi (6.32E+06 16S rRNA gene copy numbers g?1 sediment), was able to efficiently sustain the biodegradation of PCBs when controlled anaerobic conditions were imposed. 相似文献
9.
Abdel-Daim Mohamed M. Abo El-Ela Fatma I. Alshahrani Fatima K. Bin-Jumah May Al-Zharani Mohammed Almutairi Bader Alyousif Mohamed S. Bungau Simona Aleya Lotfi Alkahtani Saad 《Environmental science and pollution research international》2020,27(30):37709-37717
Environmental Science and Pollution Research - Acrylamide (AA), an industrial monomer, may cause multi-organ toxicity through induction of oxidative stress and inflammation. The antioxidant... 相似文献
10.
Unrine JM Tsyusko OV Hunyadi SE Judy JD Bertsch PM 《Journal of environmental quality》2010,39(6):1942-1953
To investigate the role of particle size on the oxidation, bioavailability, and adverse effects of manufactured Cu nanoparticles (NPs) in soils, we exposed the earthworm Eisenia ferida to a series of concentrations of commercially produced NPs labeled as 20- to 40-nm or < 100-nm Cu in artificial soil media. Effects on growth, mortality, reproduction, and expression of a variety of genes associated with metal homeostasis, general stress, and oxidative stress were measured. We also used X-ray absorption spectroscopy and scanning X-ray fluorescence microscopy to characterize changes in chemical speciation and spatial distribution of the NPs in soil media and earthworm tissues. Exposure concentrations of Cu NPs up to 65 mg kg(-1) caused no adverse effects on ecologically relevant endpoints. Increases in metallothionein expression occurred at concentrations exceeding 20 mg kg(-1) of Cu NPs and concentrations exceeding 10 mg kg(-1) of CuSO4. Based on the relationship of Cu tissue concentration to metallothionein expression level and the spatial distribution and chemical speciation of Cu in the tissues, we conclude that Cu ions and oxidized Cu NPs were taken up by the earthworms. This study suggests that oxidized Cu NPs may enter food chains from soil but that adverse effects in earthworms are likely to occur only at relatively high concentrations (> 65 mg Cu kg(-1) soil). 相似文献