Location: Harry K. Dupree Stuttgart National Aquaculture Research CntrTitle: Acute toxicity of peracetic acid: differences in fish species and influence of chemical-physical water parameters
|MEINELT, THOMAS - Leibniz Institute Of Freshwater Ecology And Inland Fisheries|
|LIU, DIBO - Leibniz Institute Of Freshwater Ecology And Inland Fisheries|
|Straus, David - Dave|
|BARTSCHAT, PETRA - State Agency For The Environment|
Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 3/20/2019
Publication Date: 6/6/2019
Citation: Meinelt, T., Liu, D., Straus, D.L., Bartschat, P. 2019. Acute toxicity of peracetic acid: differences in fish species and influence of chemical-physical water parameters [abstract]. Fish Day 2019, Christian-Albrechts-University - Kiel, Germany, June 6, 2019. p. 1-15.
Technical Abstract: Peracetic acid (PAA; also called peroxyacetic acid) is a stabilized mixture of acetic acid, hydrogen peroxide and water that does not leave dangerous residues in the environment when it breaks down as most compounds do. This study determined the acute toxicity of PAA to 12 fish species in well water. Experiments were designed to provide the 24 h LC50 (median lethal concentration), LOEC (lowest observed effect concentration) and NOEC (no observed effect concentration) values for each species at approximately 23 deg C. Ten fish were placed in static aquaria containing 10 L of well water. Each experiment consisted of 6 PAA concentrations and an untreated control (n=3). Water chemistry for the well water was: pH = 7.5, total alkalinity = 200 mg/L, total hardness = 125 mg/L. The mean LC50 value for all species tested was 5.3 mg/L PAA with the range of 2.8 mg/L to 9.3 mg/L. Black fathead minnows and blue tilapia were most and least sensitive, respectively. The mean NOEC value for all species tested was 3.7 mg/L PAA with the range of 1.9 mg/L to 5.8 mg/L. The immediate impact of this research is to understand the toxicity variance among species and ultimately to determine safe and effective therapeutic treatments.