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Journal of Environmental Management

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https://www.readbyqxmd.com/read/28549316/method-for-assessment-of-stormwater-treatment-facilities-synthetic-road-runoff-addition-including-micro-pollutants-and-tracer
#1
Karin Cederkvist, Marina B Jensen, Peter E Holm
Stormwater treatment facilities (STFs) are becoming increasingly widespread but knowledge on their performance is limited. This is due to difficulties in obtaining representative samples during storm events and documenting removal of the broad range of contaminants found in stormwater runoff. This paper presents a method to evaluate STFs by addition of synthetic runoff with representative concentrations of contaminant species, including the use of tracer for correction of removal rates for losses not caused by the STF...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28549304/landowner-preferences-for-wetlands-conservation-programs-in-two-southern-ontario-watersheds
#2
Ryan Trenholm, Wolfgang Haider, Van Lantz, Duncan Knowler, Pascal Haegeli
Wetlands in the region of Southern Ontario, Canada have declined substantially from their historic area. Existing regulations and programs have not abated this decline. However, reversing this trend by protecting or restoring wetlands will increase the supply of important ecosystem services. In particular, these actions will contribute to moderating the impacts of extreme weather predicted to result from climate change as well as reducing phosphorous loads in Lake Erie and ensuing eutrophication. Since the majority of land in the region is privately owned, landowners can play an important role...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28549303/end-of-life-eol-mobile-phone-management-in-hong-kong-households
#3
Wen-Jing Deng, John P Giesy, C S So, Hai-Long Zheng
A questionnaire survey and interviews were conducted in households and end-of-life (EoL) mobile phone business centres in Hong Kong. Widespread Internet use, combined with the rapid evolution of modern social networks, has resulted in the more rapid obsolescence of mobile phones, and thus a tremendous increase in the number of obsolete phones. In 2013, the volume of EoL mobile phones generated in Hong Kong totalled at least 330 tonnes, and the amount is rising. Approximately 80% of electronic waste is exported to Africa and developing countries such as mainland China or Pakistan for recycling...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28549275/understanding-the-relationships-between-water-quality-recreational-fishing-practices-and-human-health-in-phoenix-arizona
#4
E Pulford, B A Polidoro, M Nation
Across the United States, recreational freshwater fisheries are not only an important leisure activity, but can also provide a relatively inexpensive source of protein in local diets. However, recreational freshwater fisheries are generally not well-monitored in terms of fish consumption vs. catch and release, nor are all recreational surface waters regularly monitored for the presence of potentially harmful contaminants in water or fishes. In six urban lakes that support recreational fisheries in Phoenix, Arizona, a majority of surveyed anglers reported eating recreationally caught fishes, even though they thought the water might be polluted...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28549274/mechanisms-and-risk-of-cumulative-impacts-to-coastal-ecosystem-services-an-expert-elicitation-approach
#5
Gerald G Singh, Jim Sinner, Joanne Ellis, Milind Kandlikar, Benjamin S Halpern, Terre Satterfield, Kai M A Chan
Coastal environments are some of the most populated on Earth, with greater pressures projected in the future. Managing coastal systems requires the consideration of multiple uses, which both benefit from and threaten multiple ecosystem services. Thus understanding the cumulative impacts of human activities on coastal ecosystem services would seem fundamental to management, yet there is no widely accepted approach for assessing these. This study trials an approach for understanding the cumulative impacts of anthropogenic change, focusing on Tasman and Golden Bays, New Zealand...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28545948/numerical-investigation-of-mist-air-impingement-cooling-on-ribbed-blade-leading-edge-surface
#6
Qingfei Bian, Jin Wang, Yi-Tung Chen, Qiuwang Wang, Min Zeng
The working gas turbine blades are exposed to the environment of high temperature, especially in the leading-edge region. The mist/air two-phase impingement cooling has been adopted to enhance the heat transfer on blade surfaces and investigate the leading-edge cooling effectiveness. An Euler-Lagrange particle tracking method is used to simulate the two-phase impingement cooling on the blade leading-edge. The mesh dependency test has been carried out and the numerical method is validated based on the available experimental data of mist/air cooling with jet impingement on a concave surface...
May 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28545947/transformation-of-oil-palm-fronds-into-pentose-sugars-using-copper-ii-sulfate-pentahydrate-with-the-assistance-of-chemical-additive
#7
Yu-Loong Loow, Ta Yeong Wu
Among the chemical pretreatments available for pretreating biomass, the inorganic salt is considered to be a relatively new but simple reagent that offers comparable pentose (C5) sugar recoveries as the conventional dilute acid hydrolysis. This study investigated the effects of different concentrations (1.5-6.0% (v/v)) of H2O2 or Na2S2O8 in facilitating CuSO4·5H2O pretreatment for improving pentose sugar recovery from oil palm fronds. The best result was observed when 0.2 mol/L of CuSO4·5H2O was integrated with 4...
May 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28544939/risk-trading-in-flood-management-an-economic-model
#8
Chiung Ting Chang
Although flood management is no longer exclusively a topic of engineering, flood mitigation continues to be associated with hard engineering options. Flood adaptation or the capacity to adapt to flood risk, as well as a demand for internalizing externalities caused by flood risk between regions, complicate flood management activities. Even though integrated river basin management has long been recommended to resolve the above issues, it has proven difficult to apply widely, and sometimes even to bring into existence...
May 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28544928/achieving-advanced-nitrogen-removal-for-small-flow-wastewater-using-a-baffled-bioreactor-bbr-with-intermittent-aeration
#9
Guoqiang Liu, Jianmin Wang
Nitrogen discharge from decentralized and onsite wastewater treatment systems, such as recirculating sand filters, stabilization ponds, and septic tanks, is an important source of groundwater and surface water contamination. This study demonstrated a simple baffled bioreactor (BBR) technology, operated with an intermittent aeration mode, that effectively removed nearly all nitrogen for small flow wastewater treatment. The BBR is characterized by an aeration zone, followed by an integrated internal settler, which automatically retains a high biomass concentration of approximately 6 g/L without using a separate sludge return device...
May 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28544927/estuarine-sediment-resuspension-and-acidification-release-behaviour-of-contaminants-under-different-oxidation-levels-and-acid-sources
#10
M Camino Martín-Torre, Eva Cifrian, Gema Ruiz, Berta Galán, Javier R Viguri
Carbon dioxide (CO2) Capture and Storage (CCS) is a technology to reduce the emissions of this gas to the atmosphere by sequestering it in geological formations. In the case of offshore storage, unexpected CO2 leakages will acidify the marine environment. Reductions of the pH might be also caused by anthropogenic activities or natural events such as acid spills and dredging operations or storms and floods. Changes in the pH of the marine environment will trigger the mobilisation of elements trapped in contaminated shallow sediments with unclear redox boundary...
May 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28544926/understanding-the-influence-of-power-and-empathic-perspective-taking-on-collaborative-natural-resource-management
#11
Dara M Wald, Elizabeth A Segal, Erik W Johnston, Ajay Vinze
Public engagement in collaborative natural resource management necessitates shared understanding and collaboration. Empathic perspective-taking is a critical facilitator of shared understanding and positive social interactions, such as collaboration. Yet there is currently little understanding about how to reliably generate empathic perspective-taking and collaboration, particularly in situations involving the unequal distribution of environmental resources or power. Here we examine how experiencing the loss or gain of social power influenced empathic perspective-taking and behavior within a computer-mediated scenario...
May 22, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28538194/synthesis-and-characterization-of-a-molecularly-imprinted-polymer-for-the-isolation-of-the-16-us-epa-priority-polycyclic-aromatic-hydrocarbons-pahs-in-solution
#12
Somandla Ncube, Phumlile Kunene, Nikita T Tavengwa, Hlanganani Tutu, Heidi Richards, Ewa Cukrowska, Luke Chimuka
A smart sorbent consisting of benzo[k]fluoranthene-imprinted and indeno[1 2 3-cd]pyrene-imprinted polymers mixed at 1:1 (w/w) was successfully screened from several cavity-tuning experiments and used in the isolation of polycyclic aromatic hydrocarbons from spiked solution. The polymer mixture showed high cross selectivity and affinity towards all the 16 US-EPA priority polycyclic aromatic hydrocarbons. The average extraction efficiency from a cyclohexane solution was 65 ± 13.3% (n = 16, SD). Batch adsorption and kinetic studies confirmed that the binding of polycyclic aromatic hydrocarbons onto the polymer particles resulted in formation of a monolayer and that the binding process was the rate limiting step...
May 21, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28535447/application-of-a-life-cycle-assessment-to-compare-environmental-performance-in-coal-mine-tailings-management
#13
Joni Safaat Adiansyah, Nawshad Haque, Michele Rosano, Wahidul Biswas
This study compares coal mine tailings management strategies using life cycle assessment (LCA) and land-use area metrics methods. Hybrid methods (the Australian indicator set and the ReCiPe method) were used to assess the environmental impacts of tailings management strategies. Several strategies were considered: belt filter press (OPT 1), tailings paste (OPT 2), thickened tailings (OPT 3), and variations of OPT 1 using combinations of technology improvement and renewable energy sources (OPT 1A-D). Electrical energy was found to contribute more than 90% of the environmental impacts...
May 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28532592/extending-the-scope-of-eco-labelling-in-the-food-industry-to-drive-change-beyond-sustainable-agriculture-practices
#14
Marco A Miranda-Ackerman, Catherine Azzaro-Pantel
New consumer awareness is shifting industry towards more sustainable practices, creating a virtuous cycle between producers and consumers enabled by eco-labelling. Eco-labelling informs consumers of specific characteristics of products and has been used to market greener products. Eco-labelling in the food industry has yet been mostly focused on promoting organic farming, limiting the scope to the agricultural stage of the supply chain, while carbon labelling informs on the carbon footprint throughout the life cycle of the product...
May 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28531797/a-macrophyte-bioassessment-approach-linking-taxon-specific-tolerance-and-abundance-in-north-temperate-lakes
#15
Alison Mikulyuk, Martha Barton, Jennifer Hauxwell, Catherine Hein, Ellen Kujawa, Kristi Minahan, Michelle E Nault, Daniel L Oele, Kelly I Wagner
Bioassessment methods are critically needed to evaluate and monitor lake ecological condition. Aquatic macrophytes are good candidate indicators, but few lake bioassessment methods developed in North America use them. The few macrophyte bioassessment methods that do exist suffer from problems related to subjectivity and discernibility along disturbance gradients. We developed and tested a bioassessment approach for 462 north temperate lakes. The approach links macrophyte abundance to lake ecological condition via estimates of taxon-specific abundance-weighted tolerance to anthropogenic disturbance...
May 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28531796/spatially-explicit-modeling-of-multi-scale-drivers-of-aboveground-forest-biomass-and-water-yield-in-watersheds-of-the-southeastern-united-states
#16
Mukhtar Ahmed Ajaz Ahmed, Amr Abd-Elrahman, Francisco J Escobedo, Wendell P Cropper, Timothy A Martin, Nilesh Timilsina
Understanding ecosystem processes and the influence of regional scale drivers can provide useful information for managing forest ecosystems. Examining more local scale drivers of forest biomass and water yield can also provide insights for identifying and better understanding the effects of climate change and management on forests. We used diverse multi-scale datasets, functional models and Geographically Weighted Regression (GWR) to model ecosystem processes at the watershed scale and to interpret the influence of ecological drivers across the Southeastern United States (SE US)...
May 19, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28528757/temporal-and-seasonal-variations-of-black-carbon-in-a-highly-polluted-european-city-apportionment-of-potential-sources-and-the-effect-of-meteorological-conditions
#17
Marek Kucbel, Agnieszka Corsaro, Barbora Švédová, Helena Raclavská, Konstantin Raclavský, Dagmar Juchelková
Black carbon - a primary component of particulate matter emitted from an incomplete combustion of fossil fuels, biomass, and biofuels - has been found to have a detrimental effect on human health and the environment. Since black carbon emissions data are not readily available, no measures are implemented to reduce black carbon emissions. The temporal and seasonal variations of black carbon concentrations were evaluated during 2012-2014. The data were collected in the highly polluted European city - Ostrava, Czech Republic, surrounded by major highways and large industries...
May 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28527741/reeling-in-the-damages-harmful-algal-blooms-impact-on-lake-erie-s-recreational-fishing-industry
#18
David Wolf, Will Georgic, H Allen Klaiber
Lake Erie is one of the most valuable natural resources in the United States, providing billions of dollars in benefits each year to recreationalists, homeowners and local governments. The ecosystem services provided by Lake Erie, however, are under threat due to harmful algal blooms. This paper provides recreational damage estimates using spatially and temporally varying algae measures and monthly fishing permit sales collected between 2011 and 2014. Results indicate that fishing license sales drop between 10% and 13% when algal conditions surpass the World Health's Organization's moderate health risk advisory threshold of 20,000 cyanobacteria cells/mL...
May 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28527740/reductions-of-plant-cover-induced-by-sheep-grazing-change-the-above-belowground-partition-and-chemistry-of-organic-c-stocks-in-arid-rangelands-of-patagonian-monte-argentina
#19
C Larreguy, A L Carrera, M B Bertiller
The objective of this study was to estimate the size and chemical quality of the total organic C stock and its partition between above-belowground plant parts and soil at sites with different plant cover induced by sheep grazing in the arid Patagonian Monte. This study was conducted at six representative sites with increasing signs of canopy disturbance attributed to grazing pressure. We used faeces density as a proxy of grazing pressure at each site. We assessed the total plant cover, shrub and perennial grass cover, total standing aboveground biomass (AGB), litter mass and belowground biomass (BGB) at each site...
May 18, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28527739/local-people-s-knowledge-with-regard-to-land-use-activities-in-southwest-madagascar-conceptual-insights-for-sustainable-land-management
#20
Nadine V M Fritz-Vietta, H Stone Tahirindraza, Susanne Stoll-Kleemann
Environmental conditions in the Mahafaly Plateau region in southwest Madagascar are harsh, with a long dry season and a short rainy season. The local people's land use capabilities and skills are adapted to these conditions. Nevertheless, they are currently confronted by drastic climatic changes, including longer dry seasons, which have resulted in food and water scarcities. It is therefore essential to ensure sustainable land management in the region. At present, the main land use activities are agriculture, livestock farming, natural resource collection including timber and non-timber forest products, and the practice of local customs...
May 18, 2017: Journal of Environmental Management
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