2014
DOI: 10.1111/jawr.12158
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The Hourglass: A Conceptual Framework for the Transport of Biologically Active Compounds from Agricultural Landscapes

Abstract: Recent research has suggested that the fate of biologically active compounds (BACs) originating from point sources such as wastewater treatment plants is fundamentally different from that of similar compounds released from nonpoint sources through runoff from agricultural landscapes. Downstream from wastewater treatment plants, BACs will degrade via a variety of mechanisms; however, their concentration in the water adjacent to the point of discharge may not decrease over time, as the compounds are continually … Show more

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Cited by 24 publications
(27 citation statements)
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“…Extraction of POCIS followed published protocols Alvarez et al (2004), Kolok et al (2014) and Sellin et al (2009). Briefly, samplers were rinsed with reagent water, disassembled, membranes separated and sorbent material quantitatively transferred using~10 mL of methanol to glass chromatography columns packed with a small plug of glass wool.…”
Section: Water and Sediment Chemistrymentioning
confidence: 99%
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“…Extraction of POCIS followed published protocols Alvarez et al (2004), Kolok et al (2014) and Sellin et al (2009). Briefly, samplers were rinsed with reagent water, disassembled, membranes separated and sorbent material quantitatively transferred using~10 mL of methanol to glass chromatography columns packed with a small plug of glass wool.…”
Section: Water and Sediment Chemistrymentioning
confidence: 99%
“…One plausible explanation for observed differences in aqueous and sediment-associated pesticide concentrations is that a fraction of dissolved pesticides entering the Elkhorn River during the pulse period partitioned into the sediment which was later mobilized as suspended solids during the lesser discharge event (S3). The role of sediments in the kinetics of agrichemicals in the Elkhorn River has been previously documented (Kolok et al 2014;Zhang et al 2015).…”
Section: Agrichemical Runoff In the Elkhorn Rivermentioning
confidence: 99%
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“…Moreover, any increases in the amount of time spent searching for food may lead to increases in vulnerability of crayfish to predation. On the whole, acute ATR exposures that are common after storms and precipitation (Kolok et al 2014; Table 1) events may have wide-spread and long-term effects on crayfish and subsequently affect aquatic food web dynamics. Future research will examine physiological changes in sensory appendages following ATR exposure.…”
Section: Discussionmentioning
confidence: 99%