The Integrated Model Evaluation System (IMES): A Database for Evaluation of Exposure Assessment Models

1991 ◽  
Vol 24 (6) ◽  
pp. 315-322 ◽  
Author(s):  
S. P. Schreiner ◽  
M. Gaughan ◽  
H. L. Schultz ◽  
R. Walentowicz
Keyword(s):  
Surface Water ◽  
Exposure Assessment ◽  
Model Evaluation ◽  
Evaluation System ◽  
Chemical Exposure ◽  
Integrated Model ◽  
Assessment Model ◽  
Other Information ◽  
Access Information ◽  
Query Systems

The USEPA Office of Health and Environmental Assessment develops methodologies for conducting exposure and risk assessments. Protocols appropriate for specific analyses have been developed to aid in the selection of an exposure assessment model and to assess the validation and uncertainties associated with models used for toxic chemical exposure assessments in surface water, groundwater, and air. A software package has been developed to provide users with a quick and intuitive tool to access information for selected models and applications based on these protocols. The Integrated Model Evaluation System (IMES) is composed of three modules: 1) Selection, query systems for selecting a model based on technical criteria (currently for surface water, non-point source, and groundwater models); 2) Validation, a database containing validation and other information on over 50 models in various media; and 3) Uncertainty, a database demonstrating uncertainty simulations for several surface water models applied to exposure assessments of several chemicals. The selection modules are linked to the uncertainty and validation modules to access information for chosen models. The PC-based software system employs pull-down menus, help screens, and graphics to display its information.

scholarly journals Development of an aquatic exposure assessment model for Imidacloprid in sewage treatment plant discharges arising from use of veterinary medicinal products

2020 ◽  
Vol 32 (1) ◽  
Author(s):  
Mechthild Anthe ◽  
Beatrice Valles-Ebeling ◽  
Jan Achtenhagen ◽  
Martina Arenz-Leufen ◽  
Jackie Atkinson ◽  
...  
Keyword(s):  
Surface Water ◽  
Exposure Assessment ◽  
Sewage Treatment ◽  
Assessment Model ◽  
Monitoring Data ◽  
Small Contribution ◽  
Medicinal Products ◽  
Worst Case ◽  
The Uk ◽  
Veterinary Medicinal Products

Abstract Background Imidacloprid is an active ingredient included in plant protection, biocidal and veterinary medicinal products (VMPs). VMPs containing Imidacloprid are formulated as spot-on products or collars and designed to protect pets, predominantly dogs and cats, from parasite infestation. Monitoring data collected under the Water Framework Directive between 2016 and 2018 showed detectable and varying levels of Imidacloprid in the UK surface water bodies. The aim of the work was to investigate the potential contribution of VMPs by developing a model for predicting the emissions from sewage treatment plants from the use of dog and cat spot-on and collar VMPs. Due to the absence of appropriate exposure models for VMPs, the model was built based on the principles of environmental exposure assessment for biocidal products. Results Three emission paths were considered to be the most likely routes for repeated emissions to waterways from the use of spot-on and collar VMPs, i.e., transfer to pet bedding followed by washing, washing/bathing of dogs, and walking dogs in the rain. The developed model was used to calculate the Imidacloprid concentrations in surface water after discharge from wastewater treatment plants. Realistic worst-case input parameters were deduced from sales and survey data and experimental studies. Modelled total concentrations in surface water for each pathway ranged from 0.84 to 4.8 ng/L. The calculated concentrations did not exceed the ecological thresholds for the most sensitive aquatic invertebrate organisms and were found to be much lower than the UK monitoring data for river water. For example, the calculated concentration from the bathing/washing of dogs was < 3% of the highest levels of Imidacloprid measured in surface waters. Conclusion In conclusion, a model has been successfully built and applied. The modelled data indicate that these VMPs make only a very small contribution to the levels of Imidacloprid observed in the UK water monitoring programme. Further, calculated concentrations do not exceed ecotoxicological threshold values indicating acceptable chronic safety to aquatic organisms.

The road towards an EU-wide tiered approach assessment of pesticide concentration at drinking water abstraction locations - a combined approach of GIS analysis and modelling on catchment level

2020 ◽  
Author(s):  
Sebastian Gebler ◽  
Tom Schröder ◽  
Shanghua Li
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Exposure Assessment ◽  
Assessment Model ◽  
Agricultural Area ◽  
Proxy Data ◽  
Water Abstraction ◽  
Crop Area ◽  
Landscape Level ◽  
The Eu

&lt;p&gt;The exposure assessment of plant protection products (PPP) at drinking water abstraction points is of growing interest for authorities, water suppliers, industry, and other stake holders and is hence particularly addressed in the EU regulatory framework (regulation 1107/2009). However, there is no generic guidance available on the derivation of drinking water abstraction concentrations in the EU. An exception is the national approach of the Netherlands, a simplistic but very solid first Tier approach, which considers edge-of-field PEC&lt;sub&gt;sw&lt;/sub&gt;, use intensity including cropping area within a drinking water catchment, application practice and dissipation in the water system amongst others.&amp;#160; The Dutch approach underlies worst-case assumptions e.g. all agricultural land is connected and releases water to a water body. Our work explores the feasibility of a general tiered EU-wide approach to derive realistic PPP concentrations at drinking water abstraction points. Specifically, our goals are: (i) the characterization of EU-wide drinking water catchments, (ii) the identification of vulnerable catchments based on agricultural area or specific crops, (iii) to enable substance specific modelling for agricultural area/crop using a landscape-level assessment model.&lt;/p&gt;&lt;p&gt;On this account, we analyzed the European catchments for specific crops on the basis of the Water Framework Directive (WFD). The focus was on catchment characteristics (e.g. crop area, soil hydraulic properties) which have a strong impact on runoff as well as drainage generation and therefore on the mixing of PPPs in surface water. In a first step, the spatial variation of the mixing factor by crop area was investigated taking into account the stream course from headwater catchment to a larger main river. In the second step, we identified typical abstraction areas for surface water and groundwater using proxy data (e.g. protection zones and other proxy data) with the aim to explore the most vulnerable combinations in the EU. These data can then be used for the definition of specific (vulnerable) scenarios regarding the mixing of PPPs in surface water for a specific crop on EU level.&lt;/p&gt;&lt;p&gt;It is expected that these data in combination with landscape-level modelling using the Soil and Water Assessment tool (SWAT) can be used as starting point for a tiered exposure assessment to derive generic mixing factors and drinking water concentrations at abstraction locations.&lt;/p&gt;

The exposure models of library and integrated model evaluation system: a modeling information system on a CD-ROM with world-wide web links

1997 ◽  
Vol 36 (5) ◽  
pp. 243-249
Author(s):  
S. P. Schreiner ◽  
M. Gaughan ◽  
T. Myint ◽  
R. Walentowicz
Keyword(s):  
Information System ◽  
World Wide Web ◽  
Model Evaluation ◽  
Evaluation System ◽  
World Wide ◽  
Integrated Model ◽  
Easy Access ◽  
Cd Rom ◽  
Exposure Models ◽  
Windows Applications

We developed the Exposure Models Library and Integrated Model Evaluation System (EML/IMES) to distribute models and information about models used for exposure assessments and other fate/transport studies. The library includes models and their documentation, a model selection system, and a model validation information system (IMES) containing information about these computer models. We published the latest version of the EML/IMES on a hybrid CD-ROM with World-Wide Web (WWW) links to allow the model codes and documentation to be more easily and efficiently distributed and updated. The disc contains over 100 models which may be used for exposure assessments and fate/transport modeling. The model subdirectories contain source code, sample input and output files, and in some cases, model documentation in electronic formats. All models contained in this CD-ROM are in the public domain. The disc also contains the IMES with information and assistance on selecting an appropriate model and information on validation of models from field applications. The IMES software is available as MS-DOS and Microsoft Windows applications and can be used on a PC-compatible system. An MS-DOS and HTML interface is included to provide easy access to the IMES and to the model directories. WWW links to sources of many of the models are also provided.

Goal setting in Missouri's model evaluation system

2019 ◽  
Author(s):  
◽  
Kimberly Burger
Keyword(s):  
Public Schools ◽  
No Child Left Behind ◽  
Goal Setting ◽  
Model Evaluation ◽  
Professional Growth ◽  
Evaluation System ◽  
Goal Commitment ◽  
Elementary And Secondary Education ◽  
Effective Evaluation ◽  
Seven Principles

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Goal setting in Missouri's Model Evaluation is the central focus of this research. Years of legislation increased the federal presence in public education and made accountability a household term for educators. The direct piece of policy that connects this research to is Missouri's ESEA Flexibility Waiver. The waiver established goals that would bypass the rigorous mandates of No Child Left Behind but would still ensure high-quality programs within Missouri schools. Effective leadership and instruction were a core goal of the waiver and established the seven principles of effective evaluation for Missouri public schools. The seven principles of effective evaluation were to serve as the guiding principles for educator evaluation in Missouri by the 2014-15 academic year. Missouri's Department of Elementary and Secondary Education created the Missouri Model Evaluation System, offering districts a premade evaluation system. The model system utilizes goal setting within growth guides to provide evaluation participants a focus for both evaluation and professional growth. The four moderators of Locke and Latham's Goal Setting Theory serve as the conceptual framing of this research. These moderators, or variables, are goal specificity, goal commitment, goal difficulty, and goal feedback. The likelihood of goal achievement increases when the moderators are considered during implementation.

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