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Influences of water chemistry on the acute toxicity of lead to Pimephales promelas and Ceriodaphnia dubia.
Comp Biochem Physiol C Toxicol Pharmacol. 2011 Jan; 153(1):82-90.CB

Abstract

The acute toxicity of lead (Pb) was examined for fathead minnows (Pimephales promelas; 96-h) and daphnids (Ceriodaphnia dubia; 48-h) in waters modified for hardness (as CaSO₄), dissolved organic carbon (DOC; as Aldrich humic acid) and alkalinity (as NaHCO₃) for parameterization of an acute freshwater biotic ligand model (BLM). Additionally, acute (96-h) and chronic (30-d) bioassays were performed for P. promelas to more clearly define the influence of pH (5.5-8.3) on Pb toxicity as modified by addition of HCl or NaOH using an automated titration system. Results indicate that Ca(2+) is protective against acute Pb toxicity to P. promelas but not C. dubia. Strong protection was afforded by DOC and NaHCO(3) against acute Pb toxicity to P. promelas, whereas milder protection was observed for C. dubia with both parameters. Dissolved Pb LC50s from the P. promelas pH bioassays revealed a complex effect of pH on Pb toxicity, likely explained in part by Pb speciation and the competitive interaction of H(+) with ionic Pb(2+). Chronic pH bioassays also demonstrated that 30-d growth is not impaired in fathead minnows at relevant Pb concentrations. The findings reported herein suggest that development of separate BLMs for P. promelas and C. dubia should be considered.

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Authors+Show Affiliations

Mager EM
Division of Marine Biology and Fisheries, University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, FL 33149, USA. emager@rsmas.miami.edu
Esbaugh AJ
No affiliation info available
Brix KV
No affiliation info available
Ryan AC
No affiliation info available
Grosell M
No affiliation info available

MeSH

AnimalsCladoceraCyprinidaeFresh WaterHydrogen-Ion ConcentrationLeadMortalityToxicity Tests, AcuteWater Pollutants, Chemical

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

20869465

Citation

Mager, Edward M., et al. "Influences of Water Chemistry On the Acute Toxicity of Lead to Pimephales Promelas and Ceriodaphnia Dubia." Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP, vol. 153, no. 1, 2011, pp. 82-90.
Mager EM, Esbaugh AJ, Brix KV, et al. Influences of water chemistry on the acute toxicity of lead to Pimephales promelas and Ceriodaphnia dubia. Comp Biochem Physiol C Toxicol Pharmacol. 2011;153(1):82-90.
Mager, E. M., Esbaugh, A. J., Brix, K. V., Ryan, A. C., & Grosell, M. (2011). Influences of water chemistry on the acute toxicity of lead to Pimephales promelas and Ceriodaphnia dubia. Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP, 153(1), 82-90. https://doi.org/10.1016/j.cbpc.2010.09.004
Mager EM, et al. Influences of Water Chemistry On the Acute Toxicity of Lead to Pimephales Promelas and Ceriodaphnia Dubia. Comp Biochem Physiol C Toxicol Pharmacol. 2011;153(1):82-90. PubMed PMID: 20869465.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influences of water chemistry on the acute toxicity of lead to Pimephales promelas and Ceriodaphnia dubia. AU - Mager,Edward M, AU - Esbaugh,Andrew J, AU - Brix,Kevin V, AU - Ryan,Adam C, AU - Grosell,Martin, Y1 - 2010/09/22/ PY - 2010/06/01/received PY - 2010/09/13/revised PY - 2010/09/13/accepted PY - 2010/9/28/entrez PY - 2010/9/28/pubmed PY - 2011/2/22/medline SP - 82 EP - 90 JF - Comparative biochemistry and physiology. Toxicology & pharmacology : CBP JO - Comp Biochem Physiol C Toxicol Pharmacol VL - 153 IS - 1 N2 - The acute toxicity of lead (Pb) was examined for fathead minnows (Pimephales promelas; 96-h) and daphnids (Ceriodaphnia dubia; 48-h) in waters modified for hardness (as CaSO₄), dissolved organic carbon (DOC; as Aldrich humic acid) and alkalinity (as NaHCO₃) for parameterization of an acute freshwater biotic ligand model (BLM). Additionally, acute (96-h) and chronic (30-d) bioassays were performed for P. promelas to more clearly define the influence of pH (5.5-8.3) on Pb toxicity as modified by addition of HCl or NaOH using an automated titration system. Results indicate that Ca(2+) is protective against acute Pb toxicity to P. promelas but not C. dubia. Strong protection was afforded by DOC and NaHCO(3) against acute Pb toxicity to P. promelas, whereas milder protection was observed for C. dubia with both parameters. Dissolved Pb LC50s from the P. promelas pH bioassays revealed a complex effect of pH on Pb toxicity, likely explained in part by Pb speciation and the competitive interaction of H(+) with ionic Pb(2+). Chronic pH bioassays also demonstrated that 30-d growth is not impaired in fathead minnows at relevant Pb concentrations. The findings reported herein suggest that development of separate BLMs for P. promelas and C. dubia should be considered. SN - 1532-0456 UR - https://www.unboundmedicine.com/medline/citation/20869465/Influences_of_water_chemistry_on_the_acute_toxicity_of_lead_to_Pimephales_promelas_and_Ceriodaphnia_dubia_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1532-0456(10)00167-5 DB - PRIME DP - Unbound Medicine ER -