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A comparative study on the uptake of polycyclic aromatic hydrocarbons by Anodonta californiensis |
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| Authors: | Cheney Marcos A Liu Jing Amei Amei Zhao Xuxin Joo Sang W Qian Shizhi |
| Affiliation: | a Department of Natural Sciences, University of Maryland Eastern Shore, Princess Ann, MD 21853, USA b State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China c Department of Mathematical Sciences, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154, USA d Department of Environment Science and Engineering, Shenzhen University, Shenzhen, Guandong 518060, China e School of Mechanical Engineering, Yeungnam University, Gyongsan 712-749, Korea f Department of Aerospace Engineering, Old Dominion University, ECSB 1309, Elkhorn Avenue, Norfolk, VA 23529-0247, USA |
| Abstract: | Uptake of polycyclic aromatic hydrocarbons (PAHs) by the freshwater bivalve mollusc Anodonta californiensis was examined in the presence and absence of surfactant in order to gain further insight into mixture toxicity and to predict whether certain mixtures have negative and/or positive effects on aquatic organisms. In the presence of surfactant, the uptake of anthracene or chrysene was higher than that of naphthalene, given the same concentration in the solution. In the absence of surfactant, the trend was similar, but the uptakes were increased by approximately 100% compared to those in the presence of surfactant. On the uptake of naphthalene, the presence of anthracene showed only minor influence. The uptake of anthracene was affected by both naphthalene and chrysene. The uptake of chrysene was influenced by neither naphthalene nor anthracene. There was no observable displacement of divalent cations from the surface of the gill membrane by any of the PAHs studied. |
| Keywords: | Uptake Polycyclic aromatic hydrocarbons (PAHs) Surfactant Mixture toxicity |
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