The hourglass: A conceptual framework for the transport of biologically active compounds from agricultural landscapes

Alan S Kolok, Marlo K. Sellin Jeffries, Lindsey Knight, Daniel D Snow, Shannon L Bartelt-Hunt

Research output: Contribution to journalArticle

13 Citations (Scopus)

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 released. In contrast, in agricultural systems, BACs are episodically introduced to surface water during snowmelt and rainstorm events, and under these circumstances, may be found in water for only hours or days after a storm event. Recent research in our laboratories as well as others, has suggested that sediments play an important role in the persistence of herbicides and steroids in watersheds after nonpoint source loading events. Conceptually, the sediment serves as both a sink and a source, equilibrating with BACs during storm events then slowly releasing them back into the water over time, long after the initial pulse of chemicals has moved downstream.

Original languageEnglish (US)
Pages (from-to)266-274
Number of pages9
JournalJournal of the American Water Resources Association
Volume50
Issue number2
DOIs
StatePublished - Apr 2014

Fingerprint

conceptual framework
agricultural land
rainstorm
steroid
snowmelt
farming system
water
sediment
point source
herbicide
persistence
watershed
runoff
surface water
wastewater treatment plant

Keywords

  • Agrichemicals
  • Biologically active compounds
  • Endocrine disruptive activity
  • Pharmaceuticals
  • Sediment
  • Steroids

ASJC Scopus subject areas

  • Water Science and Technology
  • Earth-Surface Processes
  • Ecology

Cite this

@article{3d9040f18fde4da2a94a5057c2be8b83,
title = "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 released. In contrast, in agricultural systems, BACs are episodically introduced to surface water during snowmelt and rainstorm events, and under these circumstances, may be found in water for only hours or days after a storm event. Recent research in our laboratories as well as others, has suggested that sediments play an important role in the persistence of herbicides and steroids in watersheds after nonpoint source loading events. Conceptually, the sediment serves as both a sink and a source, equilibrating with BACs during storm events then slowly releasing them back into the water over time, long after the initial pulse of chemicals has moved downstream.",
keywords = "Agrichemicals, Biologically active compounds, Endocrine disruptive activity, Pharmaceuticals, Sediment, Steroids",
author = "Kolok, {Alan S} and {Sellin Jeffries}, {Marlo K.} and Lindsey Knight and Snow, {Daniel D} and Bartelt-Hunt, {Shannon L}",
year = "2014",
month = "4",
doi = "10.1111/jawr.12158",
language = "English (US)",
volume = "50",
pages = "266--274",
journal = "Journal of the American Water Resources Association",
issn = "1093-474X",
publisher = "Wiley-Blackwell",
number = "2",

}

TY - JOUR

T1 - The hourglass

T2 - A conceptual framework for the transport of biologically active compounds from agricultural landscapes

AU - Kolok, Alan S

AU - Sellin Jeffries, Marlo K.

AU - Knight, Lindsey

AU - Snow, Daniel D

AU - Bartelt-Hunt, Shannon L

PY - 2014/4

Y1 - 2014/4

N2 - 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 released. In contrast, in agricultural systems, BACs are episodically introduced to surface water during snowmelt and rainstorm events, and under these circumstances, may be found in water for only hours or days after a storm event. Recent research in our laboratories as well as others, has suggested that sediments play an important role in the persistence of herbicides and steroids in watersheds after nonpoint source loading events. Conceptually, the sediment serves as both a sink and a source, equilibrating with BACs during storm events then slowly releasing them back into the water over time, long after the initial pulse of chemicals has moved downstream.

AB - 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 released. In contrast, in agricultural systems, BACs are episodically introduced to surface water during snowmelt and rainstorm events, and under these circumstances, may be found in water for only hours or days after a storm event. Recent research in our laboratories as well as others, has suggested that sediments play an important role in the persistence of herbicides and steroids in watersheds after nonpoint source loading events. Conceptually, the sediment serves as both a sink and a source, equilibrating with BACs during storm events then slowly releasing them back into the water over time, long after the initial pulse of chemicals has moved downstream.

KW - Agrichemicals

KW - Biologically active compounds

KW - Endocrine disruptive activity

KW - Pharmaceuticals

KW - Sediment

KW - Steroids

UR - http://www.scopus.com/inward/record.url?scp=84897458811&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84897458811&partnerID=8YFLogxK

U2 - 10.1111/jawr.12158

DO - 10.1111/jawr.12158

M3 - Article

AN - SCOPUS:84897458811

VL - 50

SP - 266

EP - 274

JO - Journal of the American Water Resources Association

JF - Journal of the American Water Resources Association

SN - 1093-474X

IS - 2

ER -