, Volume 17, Issue 7, pp 660–679

Aquatic risk assessment of pesticides in surface waters in and adjacent to the Everglades and Biscayne National Parks: I. Hazard assessment and problem formulation


DOI: 10.1007/s10646-008-0230-0

Cite this article as:
Carriger, J.F. & Rand, G.M. Ecotoxicology (2008) 17: 660. doi:10.1007/s10646-008-0230-0


An aquatic risk assessment under the U.S. Environment Protection Agency (EPA) ecological risk framework was conducted for atrazine, metolachlor, malathion, chlorpyrifos, and endosulfan in the C-111 freshwater basin (eastern boundary of the Everglades National Park), northeast Florida Bay, and south Biscayne Bay in South Florida. Based on the use of the hazard quotient approach, measured concentrations of chlorpyrifos and endosulfan in surface waters suggest potential hazards to aquatic organisms and were, therefore, considered as chemicals of potential ecological concern (COPECs). The problem formulation included an overview of the physical/chemical and environmental fate characteristics and aquatic toxicology of the COPECs. Background surface water exposure concentrations of endosulfan and toxicity data from laboratory and field studies indicate that fish and invertebrate mortality may be a concern when endosulfan is applied in agricultural areas near aquatic ecosystems.


EndosulfanChlorpyrifosAtrazineMalathionMetolachlorEcological risk assessmentEverglades National ParkBiscayne National ParkC-111 canalFlorida BayBiscayne BayEverglades restoration

Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Department of Environmental Studies, Ecotoxicology & Risk Assessment Laboratory, Southeast Environmental Research CenterFlorida International UniversityNorth MiamiUSA