A Critique of a Steady-State Analytical Method for Estimating Contaminant Degradation Rates

Autor:	Walt W. McNab, Brendan P. Dooher
Rok vydání:	1998
Předmět:	Boundary concentration Steady state Transformation (function) Mathematical model Monte Carlo method Environmental engineering Environmental science Degradation (geology) Soil science Computers in Earth Sciences Water Science and Technology
Zdroj:	Ground Water. 36:983-987
ISSN:	1745-6584 0017-467X
Popis:	Contaminant transformation rates are routinely estimated from monitoring well data using a regression method based on a steady-state analytical model. This approach assumes one-dimensional solute transport in the presence of a continuous boundary concentration and a uniform first-order degradation coefficient. It must be recognized that this type of analysis is easily subject to misinterpretation, particularly when few monitoring points are used. This is because the dispersive nature of solute transport can produce concentration profiles which closely resemble those associated with a degrading contaminant even in the absence of any transformation processes. Monte Carlo analyses using simulated plumes suggest that this method may lead to significant overestimates of apparent transformation rates.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cd88692b6f11c0517d5047bac593ee73 https://doi.org/10.1111/j.1745-6584.1998.tb02105.x Zobrazit plný text záznamu Plný text