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Science of the Total Environment

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https://www.readbyqxmd.com/read/27919559/effects-of-flow-regime-on-benthic-algae-and-macroinvertebrates-a-comparison-between-regulated-and-unregulated-rivers
#1
Susanne C Schneider, Zlatko Petrin
Natural fluctuations in flow are important for maintaining the ecological integrity of riverine ecosystems. However, the flow regime of many rivers has been modified. We assessed the impact of water chemistry, habitat and streamflow characteristics on macroinvertebrates and benthic algae, comparing 20 regulated with 20 unregulated sites. Flow regime, calculated from daily averaged discharge over the five years preceding sampling, was generally more stable at regulated sites, with higher relative discharges in winter, lower relative discharges in spring and smaller differences between upper and lower percentiles...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27919558/do-salt-and-low-temperature-impair-metal-treatment-in-stormwater-bioretention-cells-with-or-without-a-submerged-zone
#2
Laila C Søberg, Maria Viklander, Godecke-Tobias Blecken
Although seasonal temperature changes and (road) salt in winter and/or coastal stormwater runoff might interfere with the metal treatment performance of stormwater bioretention cells, no previous study has evaluated the effect of these factors and their interactions under controlled conditions. In this 18week long study 24 well established pilot-scale bioretention columns were employed to evaluate the individual and combined effect(s) of low/high temperature, salt and presence of a submerged zone with an embedded carbon source on metal removal using a three factor, two-level full factorial experimental design...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27919557/trend-shifts-in-satellite-derived-vegetation-growth-in-central-eurasia-1982-2013
#3
Hao-Jie Xu, Xin-Ping Wang, Tai-Bao Yang
Central Eurasian vegetation is critical for the regional ecological security and the global carbon cycle. However, climatic impacts on vegetation growth in Central Eurasia are uncertain. The reason for this uncertainty lies in the fact that the response of vegetation to climate change showed nonlinearity, seasonality and differences among plant functional types. Based on remotely sensed vegetation index and in-situ meteorological data for the years 1982-2013, in conjunction with the latest land cover type product, we analyzed how vegetation growth trend varied across different seasons and evaluated vegetation response to climate variables at regional, biome and pixel scales...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27919556/the-science-policy-and-practice-of-nature-based-solutions-an-interdisciplinary-perspective
#4
Carsten Nesshöver, Timo Assmuth, Katherine N Irvine, Graciela M Rusch, Kerry A Waylen, Ben Delbaere, Dagmar Haase, Lawrence Jones-Walters, Hans Keune, Eszter Kovacs, Kinga Krauze, Mart Külvik, Freddy Rey, Jiska van Dijk, Odd Inge Vistad, Mark E Wilkinson, Heidi Wittmer
In this paper, we reflect on the implications for science, policy and practice of the recently introduced concept of Nature-Based Solutions (NBS), with a focus on the European context. First, we analyse NBS in relation to similar concepts, and reflect on its relationship to sustainability as an overarching framework. From this, we derive a set of questions to be addressed and propose a general framework for how these might be addressed in NBS projects by funders, researchers, policy-makers and practitioners...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27919555/benefits-on-public-health-from-transport-related-greenhouse-gas-mitigation-policies-in-southeastern-european-cities
#5
D A Sarigiannis, P Kontoroupis, S Nikolaki, A Gotti, D Chapizanis, S Karakitsios
Climate change is a major environmental threat of our time. Cities have a significant impact on greenhouse gas emissions as most of the traffic, industry, commerce and more than 50% of world population is situated in urban areas. Southern Europe is a region that faces financial turmoil, enhanced migratory fluxes and climate change pressure. The case study of Thessaloniki is presented, one of the only two cities in Greece with established climate change action plans. The effects of feasible traffic policies in year 2020 are assessed and their potential health impact is compared to a business as usual scenario...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27919554/quantitative-structure-property-relationships-for-predicting-sorption-of-pharmaceuticals-to-sewage-sludge-during-waste-water-treatment-processes
#6
L Berthod, D C Whitley, G Roberts, A Sharpe, R Greenwood, G A Mills
Understanding the sorption of pharmaceuticals to sewage sludge during waste water treatment processes is important for understanding their environmental fate and in risk assessments. The degree of sorption is defined by the sludge/water partition coefficient (Kd). Experimental Kd values (n=297) for active pharmaceutical ingredients (n=148) in primary and activated sludge were collected from literature. The compounds were classified by their charge at pH7.4 (44 uncharged, 60 positively and 28 negatively charged, and 16 zwitterions)...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27919553/the-enhanced-reduction-of-c-and-n-dbp-formation-in-treatment-of-source-water-containing-microcystis-aeruginosa-using-a-novel-ctsac-composite-coagulant
#7
Chunxia Ma, Haiyan Pei, Wenrong Hu, Yuting Wang, Hangzhou Xu, Yan Jin
This study investigated the effect of a chitosan-aluminium chloride (CTSAC) composite coagulation process on reducing the formation of algal organic matters (AOM) related carbonaceous disinfection by-products (C-DBPs) and nitrogenous disinfection by-products (N-DBPs), by removing or adsorbing their precursors. Compared with aluminium chloride (AC) and chitosan (CTS) alone, CTSAC significantly enhanced the removal of dissolved organic matter (DOC), polysaccharide, protein and humic acids, attaining removals of 64...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916301/atmospheric-pollution-in-city-centres-and-urban-environments-the-impact-of-scientific-regulatory-and-industrial-progress
#8
EDITORIAL
Alessandra Cincinelli, Athanasios Katsoyiannis
No abstract text is available yet for this article.
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916312/effects-of-pulse-and-press-additions-of-salt-on-biofilms-of-nutrient-rich-streams
#9
Joaquín Cochero, Magdalena Licursi, Nora Gómez
Chronic and pulse increments of salinity can cause different consequences on the aquatic communities, and its effects are related to factors such as the magnitude, frequency and ionic composition, as well as on the baseline salt concentrations in the water. The aim of this study was to explore the responses of the biofilms from a nutrient-rich stream to both pulse and chronic additions of salt, along with their recovery after the stressor had been removed. For this purpose, a microcosm study was conducted exposing biofilms to water enriched with sodium chloride in two treatments (press and pulse), and comparing the changes in the biofilm with control microcosms without salt additions...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916311/land-use-regression-modeling-of-ultrafine-particles-ozone-nitrogen-oxides-and-markers-of-particulate-matter-pollution-in-augsburg-germany
#10
Kathrin Wolf, Josef Cyrys, Tatiana Harciníková, Jianwei Gu, Thomas Kusch, Regina Hampel, Alexandra Schneider, Annette Peters
Important health relevance has been suggested for ultrafine particles (UFP) and ozone, but studies on long-term effects are scarce, mainly due to the lack of appropriate spatial exposure models. We designed a measurement campaign to develop land use regression (LUR) models to predict the spatial variability focusing on particle number concentration (PNC) as indicator for UFP, ozone and several other air pollutants in the Augsburg region, Southern Germany. Three bi-weekly measurements of PNC, ozone, particulate matter (PM10, PM2...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916310/effects-of-chronic-dietary-exposure-of-zinc-oxide-nanoparticles-on-the-serum-protein-profile-of-juvenile-common-carp-cyprinus-carpio-l
#11
Latifeh Chupani, Eliška Zusková, Hamid Niksirat, Aleš Panáček, Vanessa Lünsmann, Sven-Bastiaan Haange, Martin von Bergen, Nico Jehmlich
Zinc oxide (ZnO) nanoparticles (NPs) have been dramatically used in industry, biology, and medicine. Despite their interesting physico-chemical properties for application in various industrial, medical, and consumer products, safe use of ZnO NPs are under challenges due to the inadequate information related to their toxicological endpoints. Proteomics was applied to evaluate the sub-lethal effects of dietary exposure to ZnO NPs on serum proteome profile of juvenile common carp, (Cyprinus carpio). Therefore, ZnO NPs solution (500mgkg(-1) of feed) was added to a commercial carp feed for six weeks...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916309/optical-properties-of-secondary-organic-aerosols-derived-from-long-chain-alkanes-under-various-nox-and-seed-conditions
#12
Junling Li, Kun Li, Weigang Wang, Jing Wang, Chao Peng, Maofa Ge
Long-chain alkanes are a type of important intermediate-volatile organic compounds (IVOCs) in the atmosphere, which contribute to a large proportion of secondary organic aerosol (SOA). However, the optical properties of SOA derived from long-chain alkanes remain poorly understood. Here, we investigate the refractive index (RI) of SOA derived from photo-oxidation of dodecane (C12), pentadecane (C15) and heptadecane (C17) under low-NOx and high-NOx conditions with the absence or presence of inorganic aerosol seeds...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916308/a-multi-attribute-methodology-for-the-prioritisation-of-oil-contaminated-sites-in-the-niger-delta
#13
Kabari Sam, Frédéric Coulon, George Prpich
The Ogoniland region of the Niger Delta contains a vast number of sites contaminated with petroleum hydrocarbons that originated from Nigeria's active oil sector. The United Nations Environment Programme (UNEP) reported on this widespread contamination in 2011, however, wide-scale action to clean-up these sites has yet to be initiated. A challenge for decision makers responsible for the clean-up of these sites has been the prioritisation of sites to enable appropriate allocation of scarce resources. In this study, a risk-based multi-criteria decision analysis framework was used to prioritise high-risk sites contaminated with petroleum hydrocarbons in the Ogoniland region of Nigeria...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916307/summertime-ambient-ammonia-and-its-effects-on-ammonium-aerosol-in-urban-beijing-china
#14
Zhaoyang Meng, Weili Lin, Renjian Zhang, Zhiwei Han, Xiaofang Jia
To improve the understanding of NH3 variation in urban Beijing, high temporal resolution (1-min averaged) NH3 data derived during the summer of 2009 were analyzed. The results indicated that after rain there was generally an increase in NH3 concentration. The analysis of the 1-min data revealed that a weak but significant linear correlation existed between NH3 and NOx in August, indicating a connection between NH3 concentrations and traffic levels during summer. This was further supported by peak NH3 levels approximately coinciding with morning rush hours...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916306/mass-loading-and-emission-of-benzophenone-3-bp-3-and-its-derivatives-in-wastewater-treatment-plants-in-new-york-state-usa
#15
Wei Wang, Kurunthachalam Kannan
The occurrence of benzophenone type ultra-violet (UV) light filters, especially 2-hydroxy-4-methoxy benzophenone (2OH-4MeO-BP; BP-3), in aquatic ecosystems is a concern due to the endocrine disruption potential of these chemicals. In this study, mass loading, emission and fate of BP-3 and its derivatives were investigated in two wastewater treatment plants (WWTPs) in the Albany area of New York State, USA. The median concentrations of BP-3 and sum of its four derivatives (ΣBPderivatives) in influents were 35...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916305/microbial-communities-involved-in-arsenic-mobilization-and-release-from-the-deep-sediments-into-groundwater-in-jianghan-plain-central-china
#16
Xiaoming Chen, Xian-Chun Zeng, Jianing Wang, Yamin Deng, Teng Ma, Guoji E, Yao Mu, Ye Yang, Hao Li, Yanxin Wang
It was shown that groundwater in Jianghan Plain was severely contaminated by arsenic; however, little is known about the mechanism by which the mineral arsenic was mobilized and released into groundwater from the high-arsenic sediments in this area. Here, we collected sediment samples from the depths of 5-230m in Jianghan Plain. Although all of the samples contain high contents of total arsenic, the soluble arsenic was only detectable in few of the shallow sediments, but was readily detectable in all of the deep sediments at the depths of 190-230m...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916304/risk-of-bone-tumors-in-children-and-residential-proximity-to-industrial-and-urban-areas-new-findings-from-a-case-control-study
#17
Javier García-Pérez, Antonio Morales-Piga, Diana Gómez-Barroso, Ibon Tamayo-Uria, Elena Pardo Romaguera, Gonzalo López-Abente, Rebeca Ramis
Few epidemiologic studies have explored risk factors for bone tumors in children, and the role of environmental factors needs to be analyzed. Our objective was to ascertain the association between residential proximity to industrial plants and urban areas and risk of bone tumors in children, taking into account industrial groups and toxic pollutants released. A population-based case-control study of childhood bone cancer in Spain was carried out, covering 114 incident cases obtained from the Spanish Registry of Childhood Tumors (between 1996 and 2011), and 684 controls individually matched by sex, year of birth, and autonomous region of residence...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916303/seasonal-variation-of-particle-induced-oxidative-potential-of-airborne-particulate-matter-in-beijing
#18
Longyi Shao, Ying Hu, Rongrong Shen, Klaus Schäfer, Jing Wang, Jianying Wang, Jürgen Schnelle-Kreis, Ralf Zimmermann, Kelly BéruBé, Peter Suppan
An in vitro plasmid scission assay (PSA), the cell apoptosis assay, and ICP-MS were employed to study the oxidative potentials and trace element compositions of the airborne particulate matter (PM) in Beijing during a one year-long field campaign from June 2010 to June 2011. The cell damages induced by PM reveled by the cell apoptosis assay showed a similar variation pattern to the DNA damages obtained by PSA, verifying the feasibility of the PSA in analyzing the oxidative capacity of PM samples. The PSA experiments showed that the particle-induced DNA damage was highest in summer, followed by spring, winter and autumn in descending order...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916302/modelling-seasonal-effects-of-temperature-and-precipitation-on-honey-bee-winter-mortality-in-a-temperate-climate
#19
Matthew Switanek, Karl Crailsheim, Heimo Truhetz, Robert Brodschneider
Insect pollinators are essential to global food production. For this reason, it is alarming that honey bee (Apis mellifera) populations across the world have recently seen increased rates of mortality. These changes in colony mortality are often ascribed to one or more factors including parasites, diseases, pesticides, nutrition, habitat dynamics, weather and/or climate. However, the effect of climate on colony mortality has never been demonstrated. Therefore, in this study, we focus on longer-term weather conditions and/or climate's influence on honey bee winter mortality rates across Austria...
December 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27916300/seasonal-induced-changes-in-spinach-rhizosphere-microbial-community-structure-with-varying-salinity-and-drought
#20
A Mark Ibekwe, Selda Ors, Jorge F S Ferreira, Xuan Liu, Donald L Suarez
Salinity is a common problem under irrigated agriculture, especially in low rainfall and high evaporative demand areas of southwestern United States and other semi-arid regions around the world. However, studies on salinity effects on soil microbial communities are relatively few while the effects of irrigation-induced salinity on soil chemical and physical properties and plant growth are well documented. In this study, we examined the effects of salinity, temperature, and temporal variability on soil and rhizosphere microbial communities in sand tanks irrigated with prepared solutions designed to simulate saline wastewater...
December 1, 2016: Science of the Total Environment
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