Statistical tools for determining appropriate selection of regression models for analysis of environmental fate datasets |
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Authors: | Aldworth Jeremy Jackson Scott H |
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Institution: | RTI International, 3040 Cornwallis Road, Research Triangle Park, NC 27709, USA. |
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Abstract: | BACKGROUND: In the NAFTA regulatory community, a currently consistent methodology used to estimate dissipation times for environmental fate data is not applied. RESULTS: This work demonstrates through a case study that the inappropriate use of pseudo-first-order regression models can result in inaccurate estimates of soil degradation rates, and it proposes some statistical tools that can be used to identify an appropriate statistical model to fit a particular environmental fate dataset. Diagnostic procedures have been proposed to identify the appropriate scale, and statistical testing procedures have been proposed to select the appropriate model within that scale. CONCLUSION: Results from this work demonstrate that, unless the proposed diagnostic and statistical procedures are used, inaccurate estimates of dissipation times may result. |
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Keywords: | regression model non‐linear guideline study rate constant DT50 |
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