Farmyards, an overlooked source for highly contaminated runoff

Journal of Environmental Management
Anthony C EdwardsM D Wyer

Abstract

Summer sampling of storm runoff generated from areas of roofs and hardstanding situated on four dairy/beef farms has provided novel information regarding its microbiological and chemical quality. All farm hardstandings generated runoff that was contaminated with respect to those pollutants (faecal coliforms, FC, and faecal streptococci, FS, major nutrients, organic carbon) that are ubiquitously associated with faecal matter and urine. The separate analysis of roof runoff indicated that these can contribute significant concentrations of FS, phosphorus (P) and potentially toxic elements such as zinc (Zn), and suggests a level of 'background' contamination originating from wash-off of bird droppings and in the case of Zn galvanised surfaces. On average hardstanding runoff showed enhanced concentrations of >4 orders of magnitude for FC and 2-3 for major nutrients and carbon relative to roof runoff. Organic forms of nitrogen (N) and P contributed significantly (averaging >40%) to the total dissolved fraction in both roof and hardstanding runoff. Part of the substantial variability in composition of runoff samples could be attributed to differences between farms as well as the timing of sample collection during individual storms. Whe...Continue Reading

References

Jun 9, 2005·Journal of Environmental Quality·W Dean HivelyTimothy J Fahey

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Citations

Jun 8, 2012·Preventive Veterinary Medicine·Malin E JonssonMerete Hofshagen
Mar 25, 2011·The Science of the Total Environment·S GreeneP Jordan
Dec 18, 2007·Journal of Environmental Management·P S Hooda
Apr 5, 2015·The Science of the Total Environment·S MurphyV O' Flaherty
Sep 10, 2011·The Veterinary Journal·Joshua P A SweenyC Jacobson
Nov 5, 2013·The Science of the Total Environment·Md Imran KabirFederico Maggi
Oct 5, 2016·The Science of the Total Environment·Steven J GrangerAdrian L Collins
Sep 23, 2008·The Science of the Total Environment·P J A Withers, H P Jarvie
Jan 21, 2015·Journal of Environmental Quality·Sabine PeukertRichard E Brazier
Aug 26, 2009·Journal of Environmental Quality·P J A WithersH D Wickham
Nov 6, 2020·Environmental Science and Pollution Research International·Hasti DaraeiAmin Mousavi Khaneghah
May 10, 2019·The Science of the Total Environment·Simon HarrisonTimothy Sullivan
Oct 16, 2010·Environmental Science & Technology·L Delgado-MorenoJ Gan

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