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Integrated Environmental Assessment and Management

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https://www.readbyqxmd.com/read/30207049/integrating-laboratory-and-field-studies-to-assess-impacts-of-discharge-from-a-uranium-mine-and-validate-a-water-quality-guideline-value-for-agnesium
#1
Melanie A Trenfield, Andrew J Harford, Thomas Mooney, Mark Ellis, Chris Humphrey, Rick A van Dam
Magnesium (Mg) is a primary contaminant in mine water discharges from the Ranger Uranium Mine (north Australia). Site-specific Water Quality Guideline Values (WQGVs) for Mg have been derived from laboratory and field studies. Contaminated groundwater with elevated electrical conductivity and metals (Mg, manganese, uranium, sulfate and calcium) was detected flowing from the mine site into adjacent surface waters. This provided an opportunity to investigate the protectiveness of the Mg WQGV by conducting an integrated laboratory and field study...
September 12, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30144268/risk-based-approach-in-the-revised-eu-drinking-water-legislation-opportunities-for-bioanalytical-tools
#2
Milou M L Dingemans, Kirsten A Baken, Ron van der Oost, Merijn Schriks, Annemarie P van Wezel
A plethora of in vitro bioassays is developed in the context of chemical risk assessment and clinical diagnostics to test effects on different biological processes. Such assays can also be implemented in effect-based monitoring (EBM) of (drinking) water quality in parallel to chemical analyses. EBM can provide insight in the risks for environmental and human health associated with exposure to (unknown) complex low-level mixtures of micropollutants, which fits in the risk-based approach that was recently introduced in the European Drinking Water Directive...
August 24, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30136757/assessment-of-chronic-low-dose-elemental-and-radiological-exposures-to-biota-at-the-kanab-north-uranium-mine-site-in-the-grand-canyon-watershed
#3
Danielle Cleveland, Jo Ellen Hinck, Julia S Lankton
High grade uranium ore (U) deposits are in various stages of exploitation across the Grand Canyon watershed, yet the impacts of U mining on ecological and cultural resources are largely unknown. We characterized the concentrations of aluminum (Al), arsenic (As), bismuth (Bi), cadmium (Cd), cobalt (Co), copper (Cu), iron (Fe), lead (Pb), mercury (Hg), molybdenum (Mo), nickel (Ni), selenium (Se), silver (Ag), thallium (Tl), thorium (Th), U, and zinc (Zn), gross alpha and beta activities, and U and Th radioisotopes in soil, vegetation (Hesperostipa comata, Artemisia tridentata, Tamarix chinensis), and rodents (Peromyscus maniculatus, P...
August 23, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30117284/advancing-alternatives-assessment-for-safer-chemical-substitution-a-research-and-practice-agenda
#4
REVIEW
Joel Tickner, Molly Jacobs, Tim Malloy, Topher Buck, Alex Stone, Ann Blake, Sally Edwards
Alternatives assessment has emerged as a science policy field that supports the evaluation and adoption of safer chemistries in manufacturing processes and consumer products. The recent surge in the development and practice of alternatives assessment has revealed notable methodological challenges. Spurred by this need, we convened an informal community of practice comprising industry experts, academics, and scientists within government and non-governmental organizations to prioritize a research and practice agenda for the next five years that, if implemented, would significantly advance the field of alternatives assessment...
August 17, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30117283/using-bayesian-networks-to-predict-risk-to-estuary-water-quality-and-patterns-of-benthic-environmental-dna-in-queensland
#5
Scarlett E Graham, Anthony A Chariton, Wayne G Landis
Predictive modeling can inform natural resource management by representing stressor-response pathways in a logical way and quantifying the effects on selected endpoints. This study demonstrates a risk assessment model using the Bayesian network-relative risk model (BN-RRM) approach to predict water quality and; for the first time, eukaryote environmental DNA (eDNA) data as a measure of benthic community structure. Environmental DNA sampling is a technique for biodiversity measurements that involves extracting DNA from environmental samples, amplicon sequencing a targeted gene, in this case the 18s rDNA gene which targets eukaryotes, and matching the sequences to organisms...
August 17, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30117277/short-term-to-long-term-extrapolation-of-lethal-effects-of-a-herbicide-on-the-marine-mysid-shrimp-americamysis-bahia-using-the-general-unified-threshold-model-of-survival-guts
#6
Faten Gabsi, Andreas Solga, Eric Bruns, Christopher Leake, Thomas G Preuss
Risk assessments for plant protection products and their active ingredients based on standard laboratory tests which were performed under constant exposure conditions may result in an overestimation of risks because exposure in the environment is often characterised by a few short peaks. Here, the General Unified Threshold Model of Survival (GUTS) was used to conduct a refined risk assessment for the herbicide tembotrione and its effects on the marine invertebrate Americamysis bahia, for which the standard chronic effect assessment failed...
August 17, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30117274/nanosilver-enabled-food-storage-container-tradeoffs-environmental-impacts-versus-food-savings-benefit-informed-by-literature
#7
Edward I Westerband, Andrea L Hicks
Globally, thousands of tons of food are lost each year around the world due to spoilage and degraded quality. This is a current critical issue that must be addressed to ensure adequate food supply for the growing world population, with the use of technology and regulatory practices as one avenue to a solution. One considered approach is the reduction of the microorganism population on the surface of food products to delay spoilage through the use of antimicrobials. One current method is the use of the antimicrobial properties of nano-scale silver (nAg) particles in order to prolong the freshness of stored food by reducing the bacteria present...
August 17, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30095221/bioavailability-of-mercury-in-power-plant-wastewater-and-ambient-river-samples-evidence-that-the-regulation-of-total-mercury-is-not-appropriate
#8
Robin J Reash
Mercury (Hg) is a neurotoxin that can cause debilitating effects to human and environmental receptors under high exposure conditions. For industrial and municipal point sources that discharge Hg, wastewater limitations on total mercury (THg) concentrations or loads are typical. While this regulatory practice provides simplicity for regulated industry and water resource agencies (re: analytical detection and reporting purposes), it ignores the important considerations of speciation and bioavailability. In this study water samples were collected from multiple power plant wastewater, simulated mixing zone, and ambient river locations (N = 10 to 20) and analyzed for bioavailable Hg (methylmercury and acid-labile mercury, or BHg) forms, THg, and dissolved Hg...
August 10, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30079459/an-integrative-model-to-assess-water-quality-in-china-s-taihu-lake-basin-comparing-single-factor-and-multifactor-assessments
#9
Huaqing Zhu, Xiwu Lu
To determine the differences between single-factor assessment (SFA) and multifactor assessment (MFA) of the water quality in Taihu Lake Basin in China, a software program was developed to perform absolute distance (AD) computations between SFA and MFAs that refer to the Nemerow comprehensive index (NCI) and fuzzy comprehensive assessment (FCA). Symbolic models were established to describe the computation types and sequences that are involved in the models above. Water data that were obtained weekly from 7 monitoring sites (MSs) of the basin over 10 years were tested to generate water quality grades and ADs...
August 5, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30024091/macroinvertebrate-sensitivity-thresholds-for-sediment-in-virginia-streams
#10
Heather Govenor, Leigh Anne H Krometis, Lawrence Willis, Paul L Angermeier, W Cully Hession
Sediment is the most commonly identified pollutant associated with macroinvertebrate community impairments in freshwater streams nationwide. Management of this physical stressor is complicated by the multiple measures of sediment available (e.g., suspended, dissolved, bedded) and the variability in natural "healthy" sediment loadings across ecoregions. Here we examine the relative importance of 9 sediment parameters on macroinvertebrate community health as measured by the Virginia Stream Condition Index (VSCI) across 5 ecoregions...
July 19, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/30024088/structural-alerts-for-the-identification-of-bioaccumulative-compounds
#11
Cecile Valsecchi, Francesca Grisoni, Viviana Consonni, Davide Ballabio
Legislators have included bioaccumulation in the evaluation of chemicals in the framework of the European Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation. REACH requires information on the bioconcentration factor (BCF), which is a parameter for assessing bioaccumulation and encourages the use of a weight-of-evidence approach, including predictions from quantitative structure-activity relationships (QSARs). This study presents a novel approach, based on structural alerts, to be used as a decision-support system for the identification of substances with bioaccumulation potential...
July 19, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/29968963/relative-abundance-trends-of-bird-populations-in-high-intensity-croplands-in-the-central-united-states
#12
Jason B Belden, Scott T McMurry, Jonathan D Maul, Richard A Brain, Lula T Ghebremichael
Declining bird populations across the United States have been noted in a number of studies. Although multiple explanations have been proposed as causes of these declines, agricultural intensification has often been suggested as a significant driver of bird population dynamics. Using spatially explicit USDA-NASS Cropland Data Layer, we examined this relationship by comparing bird count data from the Breeding Bird Survey collected between 1995 and 2016 across 13 states in the central United States to corresponding categorical changes in land cover within a 2-km radius of each survey transect...
July 2, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/29963740/quantifying-wildlife-and-navigation-benefits-of-a-dredging-beneficial-use-project-in-the-lower-atchafalaya-river-a-demonstration-of-engineering-with-nature%C3%A2
#13
Christy M Foran, Kelly A Burks-Copes, Jacob Berkowitz, Jeffrey Corbino, Burton C Suedel
The US Army Corps of Engineers (USACE) operates and maintains numerous projects in support of its various civil works missions including flood damage risk reduction, navigation, and ecosystem restoration. Originally authorized on an economic basis, these projects may produce a broad array of unaccounted for ecosystem services (ESs) that contribute to overall human, societal, and environmental well-being. Efforts are underway to capture the full array of environmental, economic, and social impacts of these projects...
July 2, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/29947470/a-closed-formula-for-calculating-pesticide-residue-levels-in-the-feed-items-of-terrestrial-species
#14
Cornelia Van Cott, Andrew Van Cott, James Gagne
Calculating pesticide residue levels in feed items for terrestrial species requires accounting for the application rate of the pesticide, the frequency and interval of application, the half-life of the pesticide on the food item, and the residue unit dose. Microsoft Excel™-based applications such as the US Environmental Protection Agency's Terrestrial Residue Exposure model (T-REX) and Terrestrial Herpetofaunal Exposure Residue Program (T-HERPS) calculate the residue levels in feed items using a recursive sequence...
June 27, 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/29906356/beyond-citizen-science-multigenerational-education-and-mentoring-in-environmental-monitoring-a-case-study
#15
Beth Polidoro, Cassandra Clement
No abstract text is available yet for this article.
July 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/29906355/navigating-challenges-in-evaluating-life-cycle-impacts-of-consumer-products-to-achieve-sustainability
#16
Dingsheng Li, Andrea Hicks
No abstract text is available yet for this article.
July 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/29906354/application-of-innovative-techniques-for-investigation-of-cause-studies-in-environmental-effects-monitoring-for-metal-mines-in-canada-need-for-technical-guidance
#17
James Elphick, Guy Gilron, Jennie Christensen
No abstract text is available yet for this article.
July 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/29906353/developing-saicm-into-a-framework-for-the-international-governance-of-chemicals-throughout-their-lifecycle-looking-beyond-2020
#18
EDITORIAL
Thomas Backhaus, Martin Scheringer, Zhanyun Wang
No abstract text is available yet for this article.
July 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/29906352/learned-discourses-timely-scientific-opinions
#19
(no author information available yet)
No abstract text is available yet for this article.
July 2018: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/29714036/the-end-justifies-the-means-rethinking-ecotoxicological-studies
#20
LETTER
Flavio H Tincani, Marta M Cestari
No abstract text is available yet for this article.
July 2018: Integrated Environmental Assessment and Management
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