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排序方式: 共有132条查询结果,搜索用时 15 毫秒
21.
Soil ingestion can be an important route of exposure to contaminants present in the environment. This study examined the effects of exposure to contaminants in aqueous soil extracts from an industrial urban settlement in renal biochemical parameters of treated rats. Male Wistar rats were gavaged with an aqueous soil extract, from the municipality of Rio Grande, Southern Brazil. After exposure, plasma and urine concentrations and plasma protein were assessed compared to rats treated with aqueous soil from relatively unpolluted site (control soil). There was increase in plasma creatinine and total protein in urine, and a decreased glomerular filtration rate in treated rats compared to control. It is possible that Cd, Cr, As, Cu, Pb, Zn, and Ni analyzed in the soil samples and unidentified components may have provoked the observed changes in renal biochemistry of the exposed rat. This may suggest that exposure to contaminated soils can cause damage to the viscera in mammals and it is of public health importance. 相似文献
22.
Ben Vanpeperstraete Sébastien Duyck Medani P. Bhandari Janis Brizga Leida Rijnhout Sylvia Lorek A. Peter Castro Chiung Ting Chang Herman Daly Robert J. Didham Gianluca Ferraro Oliver Greenfield Ashok Khosla Ernst Ulrich von Weizsäcker Birgit Lode Simon Miles Henrique Pacini Semida Silveira Leisa Perch Jaap Rijnsburger Mukul Sanwal Sameera Savarala S. Jacob Scherr Kallidaikurichi E. Seetharam A.M.M. Adeeb Donna Shepherd Adrian Smith Lisinka Ulatowska Alice Vincent Werner John 《Natural resources forum》2011,35(4):334-342
23.
This study quantifies metal concentrations in washed and unwashed feathers of feral pigeons (Columba livia). The material was collected in two different sites: Goiania (capital of Goiás State), with high anthropic activities, and Jataí (a city in Goiás), with low anthropic activities. Results revealed that metals such as Pb, Cr, and Cd were deposited in the feathers originating from air and soil (exogenous process). Other metals such as Cu, Fe, Mn, and Zn, which are part of the tissue constitution of a living being, were absorbed through the pigeons' diet (endogenous process). There was a statistically significant difference between mean values of Cd, Pb, and Cr in the three collection sites. The order of metal concentrations were Civic Square > Zoo > Jataí, which shows highest levels of metal contamination in anthropic environments. Significant differences between Cd, Pb, and Cr in washed and unwashed feathers suggest that metal concentrations are directly related to exposure time due to exogenous sources. We concluded that it is possible to quantify and monitor metal levels in the environment by analyzing the feathers of urban feral pigeons. Furthermore, unwashed feathers were especially efficient to investigate endogenous and exogenous absorption of the metals in our study. 相似文献
24.
Guimarães Barbara Maria Ribeiro Scatolino Mário Vanoli Martins Maria Alice Ferreira Saulo Rocha Mendes Lourival Marin Lima José Tarcísio Junior Mario Guimarães Tonoli Gustavo Henrique Denzin 《Environmental science and pollution research international》2022,29(6):8665-8683
Environmental Science and Pollution Research - The growing demand for products with lower environmental impact and the extensive applicability of cellulose nanofibrils (CNFs) have received... 相似文献
25.
Lumbaque Elisabeth Cuervo Schweigert Cálita Elis dos Santos Leonardo Oliveira Lavayen Vladimir dos Santos João Henrique Zimnoch Sirtori Carla 《Environmental science and pollution research international》2021,28(19):24124-24137
Environmental Science and Pollution Research - Pharmaceuticals, such as dipyrone (DIP), paracetamol (PCT), and propranolol (PPN), are widely used analgesics and beta-blockers with the greatest... 相似文献
26.
Erin K. Cameron Inês S. Martins Patrick Lavelle Jérôme Mathieu Leho Tedersoo Mohammad Bahram Felix Gottschall Carlos A. Guerra Jes Hines Guillaume Patoine Julia Siebert Marten Winter Simone Cesarz Olga Ferlian Holger Kreft Thomas E. Lovejoy Luca Montanarella Alberto Orgiazzi Henrique M. Pereira Helen R. P. Phillips Josef Settele Diana H. Wall Nico Eisenhauer 《Conservation biology》2019,33(5):1187-1192
Human activities are accelerating global biodiversity change and have resulted in severely threatened ecosystem services. A large proportion of terrestrial biodiversity is harbored by soil, but soil biodiversity has been omitted from many global biodiversity assessments and conservation actions, and understanding of global patterns of soil biodiversity remains limited. In particular, the extent to which hotspots and coldspots of aboveground and soil biodiversity overlap is not clear. We examined global patterns of these overlaps by mapping indices of aboveground (mammals, birds, amphibians, vascular plants) and soil (bacteria, fungi, macrofauna) biodiversity that we created using previously published data on species richness. Areas of mismatch between aboveground and soil biodiversity covered 27% of Earth's terrestrial surface. The temperate broadleaf and mixed forests biome had the highest proportion of grid cells with high aboveground biodiversity but low soil biodiversity, whereas the boreal and tundra biomes had intermediate soil biodiversity but low aboveground biodiversity. While more data on soil biodiversity are needed, both to cover geographic gaps and to include additional taxa, our results suggest that protecting aboveground biodiversity may not sufficiently reduce threats to soil biodiversity. Given the functional importance of soil biodiversity and the role of soils in human well-being, soil biodiversity should be considered further in policy agendas and conservation actions by adapting management practices to sustain soil biodiversity and considering soil biodiversity when designing protected areas. 相似文献
27.
Costa Henrique Santana Tejerina-Garro Francisco Leonardo Rocha Cleonice 《Environmental science and pollution research international》2017,24(27):22018-22025
Environmental Science and Pollution Research - This research aimed to determine the water-sediment interaction (partition coefficient Kd) of trace element (Cd, Cu, total Cr, Pb, and Zn) in tropical... 相似文献
28.
29.
Carlos Henrique Wachholz de Souza Walter Rossi Cervi Jansle Vieira Rocha Rubens Augusto Camargo Lamparelli 《Journal of Land Use Science》2017,12(6):457-476
In Brazil, the main biofuel crop is sugarcane, and with its rapid expansion, there is much debate about what land uses and land covers it is replacing, and what are the associated environmental and social impacts. Some argue sugarcane is mainly replacing cattle pasture, thus having minimal impacts on native vegetation and small-scale family farming. In contrast, others claim sugarcane is replacing cropland traditionally under soybeans, rice, beans, and corn. Thus, food security is negatively affected and small-scale family farming livelihoods and culture are threatened. This is a proof-of-concept paper illustrating methods contributing toward the resolution of such debates. First we map land use and cover change in areas undergoing sugarcane expansion using satellite data from MODIS (Moderate Resolution Imaging Spectroradiometer); second, we test the hypothesis that sugarcane is replacing traditional annual crops using intensity analysis, via a case study of land change in the municipality of Pedro Afonso, Tocantins in northern Brazil between the 2008–2013 crop years. Maps matched reference data with overall agreements between 87–91%. Intensity analysis confirmed sugarcane is replacing annual crops much more than cattle pasture and other land uses and covers, pointing to particular economic and social processes driving land change. 相似文献
30.
Druzian Daniel Moro Muraro Pâmela Cristine Ladwig Oviedo Leandro Rodrigues da Costa Matheus Londero Wouters Robson Dias Loureiro Sthéfany Nunes da Silva William Leonardo dos Santos João Henrique Zimnoch 《Journal of Material Cycles and Waste Management》2023,25(5):2691-2705
Journal of Material Cycles and Waste Management - Waste water contaminated with inorganic mercury is considered a serious environmental problem, mainly due to the hazardous effects this contaminant... 相似文献