Toxic effects of single animal hormones and their mixtures on the growth of Chlorella vulgaris and Scenedesmus armatus

被引:38
|
作者
Czarny, Karolina [1 ]
Szczukocki, Dominik [1 ]
Krawczyk, Barbara [1 ]
Skrzypek, Slawomira [1 ]
Zielinski, Marek [1 ]
Gadzala-Kopciuch, Renata [2 ]
机构
[1] Univ Lodz, Fac Chem, Dept Inorgan & Analyt Chem, Lab Environm Threat, Tamka 12 St, PL-91403 Lodz, Poland
[2] Nicolaus Copernicus Univ, Fac Chem, Dept Environm Chem & Bioanalyt, Gagarina7 St, PL-87100 Torun, Poland
关键词
Chlorella vulgaris; Scenedesmus armatus; Green algae; Hormones; Endocrine disrupting compounds; ENDOCRINE DISRUPTING CHEMICALS; WASTE-WATER; GENE-EXPRESSION; ETHINYLESTRADIOL; IMPACT; 17-ALPHA-ETHINYLESTRADIOL; BIOACCUMULATION; PROGESTERONE; PROGESTINS; NORGESTREL;
D O I
10.1016/j.chemosphere.2019.02.072
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In their environments, aquatic organisms are simultaneously exposed to mixtures of several endocrine disrupting compounds, including hormones. However, most of the toxicity studies so far focused on effects of single contaminants. The available information on the potential toxicity of combined hormones on microalgae is extremely limited. For these reasons the aim of this study was to evaluate the individual and mixture effect of estrone (El ), beta-estradiol (E2), estriol (E3), 17-alpha-ethinylestradiol (EE2), progesterone (PRO), 5-pregnen-3 beta-o1-20-one (PRE), levonorgestrel (LG) and testosterone (TST) on Chlorella vulgaris and Scenedesmus armatus. Green algae cells were exposed to different concentrations (0.1-100 mg L-1) of hormones for 14 days. Biomass in the form of dry weight and chlorophyll a was examined. The decreasing order of toxicity (based on EC50, 14d) to Chlorella vulgaris and Scenedesmus armatus was: EE2>PRO> E2>PRE > TST > E3>LG > E1 and EE2>PRO > TST > E2>PRE > LG > E1 >E3, respectively. Chlorella vulgaris was more sensitive to the effects of hormones than Scenedesmus armatus. Although mixed hormones were more toxic to green algae than single hormones, in the ecosystem mixtures can pose higher ecological risk than single pollutants. Therefore, data on the toxicology of both single and mixed hormones is very valuable for assessment of the possibility of adverse ecological effects caused by these pollutants. Furthermore, these results suggest that environmental exposure to hormone mixtures may cause toxicity levels different to the sum of those of the single hormones and provides a basic understanding of their toxic effect on algae. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码:93 / 102
页数:10
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