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Science of the Total Environment

Sainan Sun, Yanan Chen, Yujin Lin, Dong An
The long-term low concentrations of trace "contaminants of emerging concern" (CECs) can have potential toxic effects on human health and serious risks to the ecological environment. This study investigated the occurrence, spatial distributions, and seasonal variations of 65 target CECs, including 35 pesticides, 17 antibiotics, 7 microcystins, 5 estrogens, and 1 plasticizers in Shanghai's source water. The detected pesticides and antibiotics of sulfonamides and macrolides were relatively ubiquitous in source water of Shanghai, with levels decreasing in the following order: pesticides (average (avg...
May 16, 2018: Science of the Total Environment
Angela Taboada, Javier Calvo-Fernández, Elena Marcos, Leonor Calvo
Elevated atmospheric nitrogen (N) deposition is a major driver of change, altering the structure/functioning of nutrient-poor Calluna vulgaris-heathlands over Europe. These effects amply proven for north-western/central heathlands may, however, vary across the ecosystem's distribution, especially at the range limits, as heathlands are highly vulnerable to land-use changes combined with present climate change. This is an often overlooked and greatly understudied aspect of the ecology of heathlands facing global change...
May 12, 2018: Science of the Total Environment
Jingxia Guo, Yunyun Li, Cong Hu, Shi Zhou, Hao Xu, Qijia Zhang, Guo Wang
The influence of three Ca-containing amendments (dolomite, slaked lime, and limestone) on soil water soluble Pb (Pb-w) levels, Pb accumulation by two rice plants (TJ-8, japonica and II-3301, indica), and the factors affecting Pb-w were investigated. Pot experiment was performed under waterlogged conditions using Pb-contaminated soil collected from an agricultural field near a mine. It was found that the soil amendments significantly reduced Pb content in the rice plants in the order dolomite > slaked lime > limestone, irrespective of rice cultivar...
May 12, 2018: Science of the Total Environment
Mostafa A R Hossain, Munir Ahmed, Elena Ojea, Jose A Fernandes
Aquatic ecosystems are of global importance for maintaining high levels of biodiversity and ecosystem services, and for the number of livelihoods dependent on them. In Bangladesh, coastal and delta communities rely on these systems for a livelihood, and the sustainability of the productivity is seriously threatened by both climate change and unsustainable management. These multiple drivers of change shape the livelihood dependence and adaptation responses, where a better understanding is needed to achieve sustainable management in these systems, while maintaining and improving dependent livelihoods...
May 12, 2018: Science of the Total Environment
Hao Zhou, Chuanlong Zhou, Philip K Hopke, Thomas M Holsen
Measurements of ambient speciated mercury (Hg) concentrations and Hg wet deposition were made at two urban sites (Bronx, NY and Rochester, NY) and one rural site (Potsdam, NY) in New York State in 2013 and 2014 to: 1) determine the factors influencing Hg wet deposition concentrations, 2) identify the contribution of gaseous oxidized Hg (GOM) and particulate bound Hg (PBM) scavenging to Hg wet deposition concentrations, and 3) identify potential source areas associated with high concentration events. The Bronx had the highest mean gaseous elemental Hg (GEM) and GOM concentrations, Rochester had the highest mean PBM and the lowest GOM concentrations, and Potsdam had the lowest mean GEM and PBM concentrations...
May 12, 2018: Science of the Total Environment
António Soares, Sandra Ramos, Tomás Albergaria, Cristina Delerue-Matos
The contamination of soils is a global environmental problem that urges an increased effort to recover polluted sites. In Europe, there are an estimated 20,000 polluted sites that need to be remediated and around 350,000 sites that are classified as potentially contaminated by the European Environment Agency (EEA). Remediation is a part of the solution to this problem, requiring the most innovative and sustainable technologies. In this context, the use of zero valent iron nanoparticles (nZVI) is a promising, low cost and efficient technology for the remediation of soil and groundwater contaminated with a wide range of organic and inorganic pollutants...
May 12, 2018: Science of the Total Environment
Tatenda Dalu, Ryan J Wasserman, Jonathan D Tonkin, Mhairi E Alexander, Mwazvita T B Dalu, Samuel N Motitsoe, Kwanele I Manungo, Onias Bepe, Timothy Dube
No abstract text is available yet for this article.
May 12, 2018: Science of the Total Environment
Bing-Bing Li, Yuan-Yuan Cheng, Yang-Yang Fan, Dong-Feng Liu, Cai-Yun Fang, Chao Wu, Wen-Wei Li, Zong-Chuang Yang, Han-Qing Yu
Shewanella species have a diverse respiratory ability and wide distribution in environments and play an important role in bioremediation and the biogeochemical cycles of elements. Primers with more accuracy and broader coverage are required with consideration of the increasing number of Shewanella species and evaluation of their roles in various environments. In this work, a new primer set of 640F/815R was developed to quantify the abundance of Shewanella species in natural and engineered environments. In silico tools for primer evaluation, quantitative polymerase chain reaction (qPCR) and clone library results showed that 640F/815R had a higher specificity and coverage than the previous primers in quantitative analysis of Shewanella...
May 12, 2018: Science of the Total Environment
E Baldi, L Cavani, A Margon, M Quartieri, G Sorrenti, C Marzadori, M Toselli
The aim of the present study was to compare the quantity and the type of carbon (C) stored during the 14-year lifetime of a commercial nectarine orchard ecosystem fertilized with mineral or organic fertilizers. The study was carried out in the Po valley, Italy, in a nectarine orchard of the variety Stark RedGold, grafted on GF677 hybrid peach × almond. Since orchard planting in August 2001, the following treatments were applied in a randomized complete block design with four replicates per block and compared: 1...
May 12, 2018: Science of the Total Environment
Li Jin, Paul G Whitehead, Harvey Rodda, Ian Macadam, Sananda Sarkar
Delta systems formed by the deposition of sediments at the mouths of large catchments are vulnerable to sea level rise and other climate change impacts. Deltas often have some of the highest population densities in the world and the Mahanadi Delta in India is one of these, with a population of 39 million. The Mahanadi River is a major river in East Central India and flows through Chattisgarh and Orissa states before discharging into the Bay of Bengal. This study uses an Integrated Catchment Model (INCA) to simulate flow dynamics and water quality (nitrogen and phosphorus) and to analyze the impacts of climate change and socio-economic drivers in the Mahanadi River system...
May 12, 2018: Science of the Total Environment
Najoi El Azhari, Eftychia Dermou, Romain L Barnard, Veronika Storck, Maria Tourna, Jérémie Beguet, Panagiotis A Karas, Luigi Lucini, Nadine Rouard, Lucio Botteri, Federico Ferrari, Marco Trevisan, Dimitrios G Karpouzas, Fabrice Martin-Laurent
Tebuconazole (TBZ) is a widely used triazole fungicide at EU level on cereals and vines. It is relatively persistent in soil where it is transformed to various transformation products (TPs) which might be environmentally relevant. We assessed the dissipation of TBZ in soil under contrasting incubation conditions (standard vs winter simulated) that are relevant to its application scheme, determined its transformation pathway using advanced analytical tools and 14 C-labeled TBZ and assessed its soil microbial toxicity...
May 12, 2018: Science of the Total Environment
Eric Yang, Marian Pavuk, Andreas Sjödin, Michael Lewin, Richard Jones, Jim Olson, Linda Birnbaum
The 2014 follow-up of the Anniston Community Health Survey (ACHS II) consisted of 338 surviving participants from the 2005-2007 baseline study (ACHS) who had previous polychlorinated biphenyl (PCB) measurements, were not pregnant, and were not institutionalized. Questionnaires and blood samples provided the demographic, personal history, and chemical concentration data of the Anniston residents. Approximately 51% of participants were African American, 72% were female, and the mean age was 63 years old. The objectives of this study were to provide an exposure assessment of dioxin-like chemicals in the ACHS II participants and compare the measurements with the general United States (U...
May 12, 2018: Science of the Total Environment
RuiHua Dong, JianHeng Zheng, MeiRu Zhang, JingSi Chen, Han Zhang, Xi Gao, YiFei Wang, Min Wu, ShuGuang Li, Bo Chen
Phthalates are predominantly used as plasticizers in daily consumer products. People are regularly exposed to phthalates through contact with these products. Phthalates are suspected to cause adverse effects in general population. We detected 10 metabolites of 6 phthalates in 3348 urine samples of general population (infants (0-1 yr), children and adolescents (2-19 yr), adults (≥20 yr), and pregnant women) from Shanghai. The Daily intake for phthalates was estimated based on the levels of urinary metabolites...
May 12, 2018: Science of the Total Environment
C Brehony, J Cullinan, M Cormican, D Morris
Shiga toxigenic Escherichia coli (STEC) are pathogenic E. coli that cause infectious diarrhoea. In some cases infection may be complicated by renal failure and death. The incidence of human infection with STEC in Ireland is the highest in Europe. The objective of the study was to examine the spatial incidence of human STEC infection in a region of Ireland with significantly higher rates of STEC incidence than the national average and to identify possible risk factors of STEC incidence at area level. Anonymised laboratory records (n = 379) from 2009 to 2015 were obtained from laboratories serving three counties in the West of Ireland...
May 12, 2018: Science of the Total Environment
Cong Men, Ruimin Liu, Qingrui Wang, Lijia Guo, Zhenyao Shen
Due to significant human activity, road dust is becoming contaminated by heavy metals in many cities. To comprehensively investigate the variation of contamination level and sources of heavy metals in road dust, 10 heavy metals in road dust samples from Beijing, China, in both summer and winter, were evaluated by spatial analysis using geographic information system (GIS) mapping technology and the positive matrix factorization (PMF) Model. Although the concentrations of some heavy metals between summer and winter had similarities, the differences of others and spatial distributions of heavy metals between summer and winter were considerable...
May 12, 2018: Science of the Total Environment
Peng Li, Changhui Peng, Meng Wang, Yunpeng Luo, Mingxu Li, Kerou Zhang, Dingling Zhang, Qiuan Zhu
Autumn phenological shifts induced by environmental change have resulted in substantial impacts on ecosystem processes. However, autumn phenology and its multiple related controlling factors have not been well studied. In this study, the spatiotemporal patterns of the end date of the vegetation growing season (EGS) and their multiple controls (climate change, summer vegetation growth and human activities) over the Qinghai-Tibetan Plateau (QTP) were investigated using the satellite-derived normalized difference vegetation index (NDVI) based on GIMMS3g datasets during 1982-2012...
May 11, 2018: Science of the Total Environment
Lutz Ahrens, Atlasi Daneshvar, Anna E Lau, Jenny Kreuger
Three passive sampler types including Chemcatcher® C18 , polar organic chemical integrative sampler-hydrophilic-lipophilic balance (POCIS-HLB) and silicone rubber (SR) based on polydimethylsiloxane (PDMS) were evaluated for 124 legacy and current used pesticides at two sampling locations in southern Sweden over a period of 6 weeks and compared to time-proportional composite active sampling. In addition, an in situ calibration was performed resulting in median in situ sampling rates (RS , L day-1 ) of 0...
May 11, 2018: Science of the Total Environment
Jing Li, Ruoqi Wang, Zhen Su, Dandan Zhang, Heping Li, Youwei Yan
Nowadays, it is extremely urgent to search for efficient and effective catalysts for water purification due to the severe worldwide water-contamination crises. Here, 3D Fe@VO2 core-shell mesh, a highly efficient catalyst toward removal of organic dyes with excellent recycling ability in the dark is designed and developed for the first time. This novel core-shell structure is actually 304 stainless steel mesh coated by VO2 , fabricated by an electrophoretic deposition method. In such a core-shell structure, Fe as the core allows much easier separation from the water, endowing the catalyst with a flexible property for easy recycling, while VO2 as the shell is highly efficient in degradation of organic dyes with the addition of H2 O2 ...
May 11, 2018: Science of the Total Environment
Daniele De Rosa, David W Rowlings, Johannes Biala, Clemens Scheer, Bruno Basso, Peter R Grace
Accounting for nitrogen (N) release from organic amendments (OA) can reduce the use of synthetic N-fertiliser, sustain crop production, and potentially reduce soil borne greenhouse gases (GHG) emissions. However, it is difficult to assess the GHG mitigation potential for OA as a substitute of N-fertiliser over the long term due to only part of the organic N added to soil is being released in the first year after application. High-resolution nitrous oxide (N2 O) and carbon dioxide (CO2 ) emissions monitored from a horticultural crop rotation over 2...
May 11, 2018: Science of the Total Environment
Miguel Ángel Álvarez-Vázquez, Serafín Jesús González-Prieto, Ricardo Prego
The Umia-Grove Intertidal Complex is located within the Ria of Arousa (NW Iberian Peninsula). Out of its significance for wintering shorebirds it has been included in the Ramsar List of Wetlands of International Importance as well as in international protection networks such as the European Natura 2000 and Important Bird and Biodiversity Areas-BirdLife International. In a sediment analysis conducted in the year 1999, the wetland was found to have been contaminated by potentially toxic trace metals, to wit: Cr, Cu, Ni, and Pb...
May 11, 2018: Science of the Total Environment
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