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Title
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Environmental Risk Assessment of Vehicle Exhaust Particles on Aquatic Organisms of Different Trophic Levels
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Type
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JournalPaper
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Keywords
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algae; aquatic toxicity; bioassay; ecotoxicology; particulate matter; sea urchin; ultrafine particles
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Abstract
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Vehicle emission particles (VEPs) represent a significant part of air pollution in urban areas. However, the toxicity of this category of particles in different aquatic organisms is still unexplored. This work aimed to extend the understanding of the toxicity of the vehicle exhaust particles in two species of marine diatomic microalgae, the planktonic crustacean Artemia salina, and the sea urchin Strongylocentrotus intermedius. These aquatic species were applied for the first time in the risk assessment of VEPs. Our results demonstrated that the samples obtained from diesel-powered vehicles completely prevented egg fertilization of the sea urchin S. intermedius and caused pronounced membrane depolarization in the cells of both tested microalgae species at concentrations between 10 and 100 mg/L. The sample with the highest proportion of submicron particles and the highest content of polycyclic aromatic hydrocarbons (PAHs) had the highest growth rate inhibition in both microalgae species and caused high toxicity to the crustacean. The toxicity level of the other samples varied among the species. We can conclude that metal content and the difference in the concentrations of PAHs by itself did not directly reflect the toxic level of VEPs, but the combination of both a high number of submicron particles and high PAH concentrations had the highest toxic effect on all the tested species
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Researchers
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Kirill Golokhvast (Not In First Six Researchers), Tatiana Kalenik (Not In First Six Researchers), Vladimir Chaika (Not In First Six Researchers), Valery Chernyshev (Not In First Six Researchers), Sergey Ugay (Fifth Researcher), Seyed Ali Johari (Fourth Researcher), Konstantin Pikula (First Researcher), Alexander Zakharenko (Third Researcher), Mariya Tretyakova (Second Researcher)
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