HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Supplement Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Google Scholar Articles by Kuchta, S. L. Articles by Headley, J. V. PubMed PubMed Citation Articles by Kuchta, S. L. Articles by Headley, J. V. Agricola Articles by Kuchta, S. L. Articles by Headley, J. V. Related Collections Water Quality Pharmaceuticals Runoff Animal Waste

TECHNICAL REPORTS

Waste Management

Transport of Lincomycin to Surface and Ground Water from Manure-amended Cropland

^a Toxicology Graduate Program, Univ. of Saskatchewan, Saskatoon, SK, Canada
^b Agriculture and Agri-Food Canada, Saskatoon, SK, Canada S7N 0X2; Current address: Environment Canada, National Hydrology Research Centre, 11 Innovation Blvd., Saskatoon, SK, Canada S7N 3H5
^c Environment Canada, National Hydrology Research Centre, 11 Innovation Blvd., Saskatoon, SK, Canada S7N 3H5

^* Corresponding author (allan.cessna{at}ec.gc.ca).

Received for publication August 14, 2008. Livestock manure containing antimicrobials becomes a possible source of these compounds to surface and ground waters when applied to cropland as a nutrient source. The potential for transport of the veterinary antimicrobial lincomycin to surface waters via surface runoff and to leach to ground water was assessed by monitoring manure-amended soil, simulated rainfall runoff, snowmelt runoff, and ground water over a 2-yr period in Saskatchewan, Canada, after fall application of liquid swine manure to cropland. Liquid chromatography tandem mass spectrometry was used to quantify lincomycin in all matrix extracts. Initial concentrations in soil (46.3–117 µg kg^–1) were not significantly different (p > 0.05) for manure application rates ranging from 60,000 to 95,000 L ha^–1 and had decreased to nondetectable levels by mid-summer the following year. After fall manure application, lincomycin was present in all simulated rainfall runoff (0.07–2.7 µg L^–1) and all snowmelt runoff (0.038–3.2 µg L^–1) samples. Concentrations in snowmelt runoff were not significantly different from those in simulated rainfall runoff the previous fall. On average, lincomycin concentrations in ephemeral wetlands dissipated by 50% after 31 d. Concentrations of lincomycin in ground water were generally <0.005 µg L^–1. This study demonstrates that the management practice of using livestock manure from confined animal feeding operations as a plant nutrient source on cropland may result in antimicrobial transport to surface and ground waters.

Abbreviations: PLE, pressurized liquid extraction