The impact of climate change on aquatic risk from agricultural pesticides in the US

Nikolinka G. Koleva and Uwe Schneider ()

No FNU-173, Working Papers from Research unit Sustainability and Global Change, Hamburg University

Abstract: Agricultural pesticides have adverse impacts on water quality and aquatic species. These impacts are sensitive to climate because pest pressure and corresponding pesticide application rates vary with weather and climate conditions. In this paper, we investigate how climate change affects the acute and chronic toxicity risk to algae, daphnia, and fish from the ten most hazardous pesticides in twelve coastal states of the US. We combine climate change projections from the Canadian and Hadley climate model, statistically estimated dependencies of pesticide applications to climate and weather variables, and the environmental risk indicator REXTOX developed by the OECD. On average, we find that climate change is likely to increase the toxicity risk to aquatic species because of increased application of agricultural pesticides. Algae appear to be the most negatively affected category. Across five broad crop groups, pesticide use on fruits and vegetables contributes the most to increased aquatic pollution. Within the twelve coastal states, the highest impacts are found in Texas, Florida, California, South and North Carolina.

Keywords: climate change scenarios; agricultural pesticides; acute toxicity; chronic risk; aquatic species; marine environment; United States (search for similar items in EconPapers)
JEL-codes: Q10 Q53 Q54 (search for similar items in EconPapers)
Pages: 40 pages
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.fnu.zmaw.de/fileadmin/fnu-files/publica ... rs/FNU173_Koleva.pdf First version, 2009 (application/pdf)
Our link check indicates that this URL is bad, the error code is: 500 Can't connect to www.fnu.zmaw.de:80 (No such host is known. )

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:sgc:wpaper:173

Access Statistics for this paper

More papers in Working Papers from Research unit Sustainability and Global Change, Hamburg University Contact information at EDIRC.
Bibliographic data for series maintained by Uwe Schneider ( this e-mail address is bad, please contact ).