کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4476980 1315707 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Event monitoring of herbicides with naked and membrane-covered Empore disk integrative passive sampling devices
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Event monitoring of herbicides with naked and membrane-covered Empore disk integrative passive sampling devices
چکیده انگلیسی

Subsequent to an initial wet season flood event in the Brisbane River, Australia, both fast (naked disk) and slow (membrane-covered) variants of SDB–RPS Empore disk passive sampling devices were deployed with an automated grab sampling program. A trend increase in the aquatic dissolved concentrations of diuron and simazine was observed over a 10-day period. Kinetic and equilibrium parameters for each sampler were calculated based on the dynamic concentration. Absolute percent difference for duplicate passive samples was <10% in the fast and <25% in the slow samplers. For kinetic sampling, significantly shortened integrative periods are available with the fast compared with the slow variant, with higher sampling rates offering improved detection limits. The study demonstrates a method for determining kinetic parameters of passive samplers in a variable concentration field deployment, and illustrates the differences in quality between active and passive data, in terms of capturing changes in concentration associated with rainfall events.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 58, Issue 8, August 2009, Pages 1116–1122
نویسندگان
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