Occurrence of arsenic and phosphorus in ditch flow from litter-amended soils and barn areas

Clinton D. Church, Peter J.A. Kleinman, Ray B. Bryant, Lou S. Saporito, Arthur L. Allen

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Abstract

Little is known about the fate of arsenic (As) in land-applied litter from chickens that have been fed roxarsone, an organic feed additive containing As. Th is study seeks to elucidate the transfer of As in runoff from ditch-drained soils of the poultryproducing region of the Delmarva Peninsula by tracking As and phosphorus (P) export from seven drainage ditches over two water-years (1 July 2005 to 30 June 2007). Annual losses of As from ditches ranged from 0.004 to 0.071 kg ha-1 while P losses ranged from 0.33 to 18.56 kg h a-1, with the largest loads associated with a litter storage shed that served as a point source. Event-based As and P losses in ditch flow fluctuated by a factor of 162 and 1882, respectively. Th e two elements were correlated in flow from the ditch draining a litter storage shed (r = 0.99), and in sediment extracts in soils near the litter shed (r = 0.73), pointing to similar behavior under point source conditions. Indeed, As and P exhibited similar behavior within storms for all ditches, characterized by relatively high initial concentrations subject to rapid concentration declines before peak flow, consistent with dilution of a finite source. However, As and P concentrations varied significantly between ditches and showed considerable temporal variability within ditches, with no clear seasonal trends or associations with current management strategies. Th e results suggest that similar management strategies might be effective for As and P point sources, but that field management practices geared toward controlling nonpoint source P losses may not readily transfer to the control of As losses.

Original languageEnglish (US)
Pages (from-to)2080-2088
Number of pages9
JournalJournal of Environmental Quality
Volume39
Issue number6
DOIs
StatePublished - Nov 1 2010

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All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution
  • Management, Monitoring, Policy and Law

Cite this

Church, C. D., Kleinman, P. J. A., Bryant, R. B., Saporito, L. S., & Allen, A. L. (2010). Occurrence of arsenic and phosphorus in ditch flow from litter-amended soils and barn areas. Journal of Environmental Quality, 39(6), 2080-2088. https://doi.org/10.2134/jeq2009.0210