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Updated: Dec 24, 2025

Characterization and Application of Passive Samplers for Monitoring of Pesticides in Water
Published on: August 3, 2016
Organic contaminant sorption parameters should only be compared across a consistent system of linear functions
Mark A Chappell1, Jennifer M Seiter1, Haley M West1
1U.S. Army Engineer Research & Development Center, 3909 Halls Ferry Rd, Vicksburg, MS, 39180, USA.
Abstract:
Modeling contaminant sorption data using a linear model is very common; however, the rationale for whether the y-intercept should be constrained or not remains a subject of debate. This article justifies constraining the y-intercept in the linear model to zero. By doing so, one imposes consistency on the system of linear equations, allowing for direct comparison of the sorption coefficients.
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