IMPACT OF ENVIRONMENTALLY BASED CHEMICAL HARDNESS ON URANIUM SPECIATION AND TOXICITY IN SIX AQUATIC SPECIES

被引:30
|
作者
Goulet, Richard R. [1 ]
Thompson, Patsy A. [1 ]
Serben, Kerrie C. [2 ]
Eickhoff, Curtis V. [3 ]
机构
[1] Canadian Nucl Safety Commiss, Ottawa, ON, Canada
[2] Golder Associates, Saskatoon, SK, Canada
[3] Maxxam Analyt, Burnaby, BC, Canada
关键词
Uranium; Acute toxicity; Chronic toxicity; Speciation; Freshwater; HYALELLA-AZTECA; WATER HARDNESS; DERIVATION; METALS; DISTURBANCE; RESIDUES; ION;
D O I
10.1002/etc.2834
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Treated effluent discharge from uranium (U) mines and mills elevates the concentrations of U, calcium (Ca), magnesium (Mg), and sulfate (SO42-) above natural levels in receiving waters. Many investigations on the effect of hardness on U toxicity have been experiments on the combined effects of changes in hardness, pH, and alkalinity, which do not represent water chemistry downstream of U mines and mills. Therefore, more toxicity studies with water chemistry encountered downstream of U mines and mills are necessary to support predictive assessments of impacts of U discharge to the environment. Acute and chronic U toxicity laboratory bioassays were realized with 6 freshwater species in waters of low alkalinity, circumneutral pH, and a range of chemical hardness as found in field samples collected downstream of U mines and mills. In laboratory-tested waters, speciation calculations suggested that free uranyl ion concentrations remained constant despite increasing chemical hardness. When hardness increased while pH remained circumneutral and alkalinity low, U toxicity decreased only to Hyalella azteca and Pseudokirchneriella subcapitata. Also, Ca and Mg did not compete with U for the same uptake sites. The present study confirms that the majority of studies concluding that hardness affected U toxicity were in fact studies in which alkalinity and pH were the stronger influence. The results thus confirm that studies predicting impacts of U downstream of mines and mills should not consider chemical hardness. Environ Toxicol Chem 2015;34:562-574. (c) 2014 The Authors. Published by Wiley Periodicals, Inc. on behalf of SETAC
引用
收藏
页码:562 / 574
页数:13
相关论文
共 50 条
  • [1] Chemical speciation dynamics and toxicity assessment in aquatic systems
    Witters, HE
    ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY, 1998, 41 (01) : 90 - 95
  • [2] DETERMINING CHEMICAL TOXICITY TO AQUATIC SPECIES
    BLUM, DJW
    SPEECE, RE
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1990, 24 (03) : 284 - 293
  • [3] Impact of aquatic humic substances on speciation and toxicity of arsenic and cobalt to Ceriodaphnia dubia
    Watanabe, Claudia Hitomi
    Gontijo, Erik Sartori Jeunon
    Domingues, Murilo Teles
    Fracacio, Renata
    Rosa, Andre Henrique
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 30 (31) : 77238 - 77245
  • [4] Impact of aquatic humic substances on speciation and toxicity of arsenic and cobalt to Ceriodaphnia dubia
    Cláudia Hitomi Watanabe
    Erik Sartori Jeunon Gontijo
    Murilo Teles Domingues
    Renata Fracácio
    André Henrique Rosa
    Environmental Science and Pollution Research, 2023, 30 : 77238 - 77245
  • [5] Chemical Speciation and Stability of Uranium in Unconventional Shales: Impact of Hydraulic Fracture Fluid
    Jew, Adam D.
    Besancon, Clemence J.
    Roycroft, Scott J.
    Noel, Vincent S.
    Bargar, John R.
    Brown, Gordon E., Jr.
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2020, 54 (12) : 7320 - 7329
  • [6] Effects of salinity and chemical speciation on cadmium accumulation and toxicity to two mysid species
    Roast, SD
    Widdows, J
    Jones, MB
    ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY, 2001, 20 (05) : 1078 - 1084
  • [8] Chemical speciation and toxicity of nickel species in natural waters from the Sudbury area (Canada)
    Mandal, R
    Hassan, NM
    Murimboh, J
    Chakrabarti, CL
    Back, MH
    ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2002, 36 (07) : 1477 - 1484
  • [9] A general definition of the concept of chemical speciation, chemical species transformation and chemical species evolution based on a semantics of meaning
    Quiroz, Waldo
    Morales-Aguilar, Roberto
    Perez, Pablo A.
    FOUNDATIONS OF CHEMISTRY, 2024,
  • [10] The Study of Acute Aquatic Ecological Threshold of Silver Nanoparticles Based on the Acute Toxicity of Aquatic Species
    He, Longchao
    Liu, Tongzhou
    PROCEEDINGS OF THE 2017 6TH INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENTAL PROTECTION (ICEEP 2017), 2017, 143 : 981 - 984