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81.
Bioindication of air pollution effects near a copper smelter in Brazil using mango trees and soil microbiological properties 总被引:14,自引:0,他引:14
Klumpp A Hintemann T Lima JS Kandeler E 《Environmental pollution (Barking, Essex : 1987)》2003,126(3):313-321
A field study near the copper smelter of a large industrial complex examined air pollution effects on vegetation and soil parameters in Cama?ari (northeast Brazil). Close to the smelter, soil pH-value was lower and total acidity as well as organic carbon contents were higher compared with a site far from the source and two reference sites. The acidification of top soil particularly and the drastically enhanced plant-available copper concentrations were caused by atmospheric deposition. High sulphur and copper deposition significantly reduced microbial biomass and altered functional diversity of soil microorganisms (arylsulphatase and xylanase). Large accumulations of sulphur, arsenic and copper were detected in mango leaves (Mangifera indica) growing downwind from the smelter suggesting potential food chain-mediated risk. 相似文献
82.
Renata de Lima Anderson do Espirito Santo Pereira Raquel Martins Porto Leonardo Fernandes Fraceto 《Journal of Polymers and the Environment》2011,19(1):196-202
This work reports on an analysis of the cyto- and genotoxicity of poly(lactide-co-glycolide) polymer nanoparticles, in an
attempt to evaluate their mutagenic effects. Fibroblast (3T3) and human lymphocyte cell cultures were exposed to solutions
containing three different concentrations of nanoparticles (5.4, 54 and 540 μg/mL, polymer mass/volume of solution). The nanoparticles
were characterized in terms of their hydrodynamic diameters, zeta potentials and polydispersity indices. The morphology of
the particles was determined by atomic force microscopy. The PLGA nanospheres presented a size of 95 nm, a zeta potential
of −20 mV and a spherical morphology. Cellular viability assays using fibroblast cells showed no significant alterations compared
with the negative control. A cytogenetic analysis of human lymphocyte cells showed no significant changes in the mitotic index
in relation to the control, indicating that in the concentration range tested, the particles used in the experimental models
did not present cyto- or genotoxicity. For the tests conducted in this work we can conclude that biodegradable and biocompatible
PLGA nanospheres are not toxic in the cell cultures tested (fibroblast and lymphocyte cells) and in the range of concentrations
employed. The results provide new information concerning the toxic effects of particles produced using PLGA. 相似文献
83.
da Silva Lima Nilsa Duarte de Alencar Nääs Irenilza 《Environmental science and pollution research international》2022,29(29):43955-43965
Environmental Science and Pollution Research - The present study aimed to evaluate the environmental cost of the production process of broilers from the approach of emergy accounting and carbon... 相似文献
84.
Silveira Elaine Divina Rodrigues Benvindo-Souza Marcelino Assis Rhayane Alves dos Santos Cirley Gomes Araújo de Lima Amorim Nathan Pereira Borges Rinneu Elias de Melo Celine de Souza Santos Lia Raquel 《Environmental science and pollution research international》2022,29(10):14279-14287
Environmental Science and Pollution Research - Free-living birds play an important role as bioindicators in natural environments. In this study, we used the micronucleus test and nuclear... 相似文献
85.
Flávia Gonçalves Domingues Ferreira Maria Alice Gomes de Andrade Lima Yêda Medeiros Bastos de Almeida Glória Maria Vinhas 《Journal of Polymers and the Environment》2010,18(3):196-201
Blends of LDPE/modified starch were prepared, sterilized by gamma radiation and investigated with respect to their microbial
degradation by a mixture of fungal strains in liquid medium after 90 days, was analyzed by carbon dioxide (CO2) production (Sturm test). Biodegradation of blends was evaluated by Fourier transform infrared spectroscopy (FTIR) and X-ray
diffraction; mechanical testing, scanning electron microscopy (SEM). The biodegradation of LDPE/modified starch blends was
attributed to microbiological attack, with alterations in the chemical structure of the blend with an increase in the carbonyl
and vinyl indices and the appearance of new crystalline symmetry generating a crystalline domain not existing before in the
blend and decrease in the mechanical properties. 相似文献
86.
da Silva Maryne Patrícia de Souza Ziani Santana Bandeira Cavalcanti Jorge Vinicius Fernandes Lima Fraga Tiago José Marques da Motta Sobrinho Maurício Alves Ghislandi Marcos Gomes 《Environmental science and pollution research international》2021,28(19):23684-23698
Environmental Science and Pollution Research - Multilayer graphene oxide (mGO) was synthesized and functionalized via co-precipitation method to produce magnetic Fe3O4-functionalized multilayer... 相似文献
87.
Anjos Charlene S. Lima Rafaely N. Porto André L. M. 《Environmental science and pollution research international》2021,28(28):37082-37109
Environmental Science and Pollution Research - Neonicotinoids are a class of pesticides widely used in different phases of agricultural crops. Similar to other classes of pesticides, they can... 相似文献
88.
de Araujo Helder F. P. Machado Célia C. C. Alves Ana Carolina Flores da Costa Lima Mônica da Silva José Maria Cardoso 《Mitigation and Adaptation Strategies for Global Change》2022,27(8):1-18
Mitigation and Adaptation Strategies for Global Change - All Clean Development Mechanism (CDM) projects are designed to contribute to the sustainable development of the host country. Livelihood is... 相似文献
89.
Lopes Géssica de Oliveira Aragão Walessa Alana Bragança Nascimento Priscila Cunha Bittencourt Leonardo Oliveira Oliveira Ana Carolina Alves Leão Luana Ketlen Reis Alves-Júnior Sergio Melo Pinheiro João de Jesus Viana Crespo-Lopez Maria Elena Lima Rafael Rodrigues 《Environmental science and pollution research international》2021,28(9):10918-10930
Environmental Science and Pollution Research - This study aimed to investigate the effects of lead (Pb) exposure on parotid and submandibular glands through morphological aspects as well as the... 相似文献
90.
Paolo Valera Patrizia Zavattari Stefano Albanese Domenico Cicchella Enrico Dinelli Annamaria Lima Benedetto De Vivo 《Environmental geochemistry and health》2014,36(1):79-98
Complex multifactorial disorders usually arise in individuals genetically at risk in the presence of permissive environmental factors. For many of these diseases, predisposing gene variants are partly known while the identification of the environmental component is much more difficult. This study aims to investigate whether there are correlations between the incidence of two complex traits, multiple sclerosis and type 1 diabetes, and some chemical elements and compounds present in soils and stream sediments in Europe. Data were obtained from the published literature and analyzed by calculating the mean values of each element and of disease incidence for each Country, respectively, 17 for multiple sclerosis and 21 for type 1 diabetes. Correlation matrices and regression analyses were used in order to compare incidence data and geochemical data. R correlation index and significance were evaluated. The analyses performed in this study have revealed significant positive correlations between barium and sodium oxide on one hand and multiple sclerosis and diabetes incidences on the other hand that may suggest interactions to be evaluated between silicon-rich lithologies and/or marine environments. The negative correlations shown by cobalt, chromium and nickel (typical of silicon-poor environment), which in this case can be interpreted as protective effects against the two diseases onset, make the split between favorable and protective environments even more obvious. In conclusion, if other studies will confirm the involvement of the above elements and compounds in the etiology of these pathologies, then it will be possible to plan strategies to reduce the spread of these serious pandemics. 相似文献