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211.
Bouchet S Tessier E Monperrus M Bridou R Clavier J Thouzeau G Amouroux D 《Journal of environmental monitoring : JEM》2011,13(5):1351-1359
The elemental mercury evasion from non-impacted natural areas is of significant importance in the global Hg cycle due to their large spatial coverage. Intertidal areas represent a dynamic environment promoting the transformations of Hg species and their subsequent redistribution. A major challenge remains in providing reliable data on Hg species variability and fluxes under typical transient tidal conditions found in such environment. Field experiments were thus carried out to allow the assessment and comparison of the magnitude of the gaseous Hg fluxes at the three interfaces, sediment-water, sediment-atmosphere and water-atmosphere of a mesotidal temperate lagoon (Arcachon Bay, Aquitaine, France) over three distinct seasonal conditions. The fluxes between the sediment-water and the sediment-atmosphere interfaces were directly evaluated with field flux chambers, respectively static or dynamic. Water-atmosphere fluxes were evaluated from ambient concentrations using a gas exchange model. The fluxes at the sediment-water interface ranged from -5.0 to 5.1 ng m(-2) h(-1) and appeared mainly controlled by diffusion. The occurrence of macrophytic covers (i.e.Zostera noltii sp.) enhanced the fluxes under light radiations. The first direct measurements of sediment-atmosphere fluxes are reported here. The exchanges were more intense and variable than the two other interfaces, ranging between -78 and 40 ng m(-2) h(-1) and were mostly driven by the overlying atmospheric Hg concentrations and superficial sediment temperature. The exchanges between the water column and the atmosphere, computed as a function of wind speed and gaseous mercury saturation ranged from 0.4 to 14.5 ng m(-2) h(-1). The flux intensities recorded over the intertidal sediments periodically exposed to the atmosphere were roughly 2 to 3 times higher than the fluxes of the other interfaces. The evasion of elemental mercury from emerged intertidal sediments is probably a significant pathway for Hg evasion in such tidal environments exhibiting background contamination level. 相似文献
212.
Wissal Selmi Slaheddine Selmi Jacques Teller Christiane Weber Emmanuel Rivire David J. Nowak 《Ambio》2021,50(5):1035
The distribution of urban ecosystem services (UES) is often uneven across socioeconomic groups, leading to environmental justice issues. Understanding the distribution of UES across a landscape can help managers ensure an equitable distribution of services. While many past studies have focused on the distribution of green spaces in relation to socioeconomic variables, this research analyzes the distribution of UES provided by these green spaces. This research quantified air pollution removal, atmospheric carbon reduction, and surface runoff mitigation provided by urban trees in Strasbourg city (France). The provision of these three UES was studied at the census block scale by creating an index of UES delivery, which was contrasted with a constructed social deprivation index. Our results show that there is no significant association between the delivery of UES and social deprivation. Some deprived populations benefit from high UES delivery. Results also suggest that mapping associations between UES delivery and social deprivation should be integrated with future development plans to enhance the equitable distribution of UES. This study provides insights into the French context where studies about the distribution of UES at a small-area level remain lacking. 相似文献
213.
Tchoffo Rodrigue Ngassa Guy B. P. Doungmo Giscard Kamdem Arnaud T. Tonlé Ignas K. Ngameni Emmanuel 《Environmental science and pollution research international》2022,29(1):222-235
Environmental Science and Pollution Research - A composite material prepared by polymerization of β-cyclodextrin (β-CD) on the surface of natural hydroxyapatite using citric acid as cross... 相似文献
214.
Yiridomoh Gordon Yenglier Bonye Samuel Ziem Derbile Emmanuel Kanchebe Owusu Victor 《Environment, Development and Sustainability》2022,24(1):810-831
Environment, Development and Sustainability - Climate extremes over the years have been a major concern for the globalized world. The hardest hit from these climate extremes are women farmers with... 相似文献
215.
Obuobi Bright Zhang Yifeng Nketiah Emmanuel Adu-Gyamfi Gibbson Cudjoe Dan 《Environmental science and pollution research international》2022,29(46):69540-69554
Environmental Science and Pollution Research - Sustainable Development Goal (SDG-7) stipulates the need for clean energy, reduced carbon dioxide emissions, prevention of environmental... 相似文献
216.
Okeke Emmanuel Sunday Chukwudozie Kingsley Ikechukwu Nyaruaba Raphael Ita Richard Ekeng Oladipo Abiodun Ejeromedoghene Onome Atakpa Edidiong Okokon Agu Chidozie Victor Okoye Charles Obinwanne 《Environmental science and pollution research international》2022,29(46):69241-69274
Environmental Science and Pollution Research - Aquaculture has emerged as one of the world’s fastest-growing food industries in recent years, helping food security and boosting global... 相似文献
217.
Bah Alseny Feng Daolun Kedjanyi Emmanuel Adu Gyamfi Shen Ziyi Bah Alhassane Li Feihu 《Journal of Material Cycles and Waste Management》2022,24(1):351-363
Journal of Material Cycles and Waste Management - Fly ash-based geopolymer is a crucial application for tackling climate change, limiting the production of greenhouse emissions. The main aim of... 相似文献
218.
Sarfo Isaac Shuoben Bi Beibei Li Amankwah Solomon Obiri Yeboah Yeboah Emmanuel Koku John Ernest Nunoo Edward Kweku Kwang Clement 《Environment, Development and Sustainability》2022,24(8):9851-9883
Environment, Development and Sustainability - This study assesses the spatiotemporal development of land use systems and climate variability in Southwestern Ghana over the past five decades using... 相似文献
219.
Onanuga Margaret Yejide Eludoyin Adebayo Oluwole Ofoezie Ifeanyi Emmanuel 《Environment, Development and Sustainability》2022,24(1):592-616
Environment, Development and Sustainability - The many widely reported significant environmental changes in sub-Saharan communities caused by population change and expansion of built-up areas have... 相似文献
220.
Kouadio Emmanuel Kouakou Goriaux Mathieu Laguionie Philippe Ruban Véronique 《Environmental science and pollution research international》2022,29(21):30837-30849
Environmental Science and Pollution Research - In order to estimate the resuspension of the particles empirically, it is necessary to carry out a homogeneous distribution of the particles on the... 相似文献