Toxicity assessment of particulate matter emitted from different types of vehicles on marine microalgae
| Autor: | Aristidis Tsatsakis, Vladimir V. Chaika, T.T. Hien, L.H. Hai, Kirill S. Golokhvast, Alexander M. Zakharenko, Konstantin Pikula, Greta Waissi, V. V. Chernyshev |
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| Rok vydání: | 2019 |
| Předmět: |
Air pollution
010501 environmental sciences medicine.disease_cause 01 natural sciences Biochemistry Aquatic toxicology 03 medical and health sciences 0302 clinical medicine Microalgae medicine Ecotoxicology 030212 general & internal medicine Particle Size Vehicle Emissions 0105 earth and related environmental sciences General Environmental Science Air Pollutants biology Sedimentation Particulates biology.organism_classification Motor Vehicles Wastewater Environmental chemistry Environmental science Particle Particulate Matter Heterosigma akashiwo Gasoline Environmental Monitoring |
| Zdroj: | Environmental Research. 179:108785 |
| ISSN: | 0013-9351 |
| Popis: | Air pollution caused by vehicle emissions remains a serious environmental threat in urban areas. Sedimentation of atmospheric aerosols, surface wash, drainage water, and urbane wastewater can bring vehicle particle emissions into the aquatic environment. However, the level of toxicity and mode of toxic action for this kind of particles are not fully understood. Here we explored the aquatic toxic effects of particulate matter emitted from different types of vehicles on marine microalgae Porphyridium purpureum and Heterosigma akashiwo. We used flow cytometry to evaluate growth rate inhibition, changes in the level of esterase activity, changes in membrane potential and size changes of microalgae cells under the influence of particulate matter emitted by motorcycles, cars and specialized vehicles with different types of engines and powered by different types of fuel. Both microalgae species were highly influenced by the particles emitted by diesel-powered vehicles. These particle samples had the highest impact on survival, esterase activity, and membrane potential of microalgae and caused the most significant increase in microalgae cell size compared to the particles produced by gasoline-powered vehicles. The results of the algae-bioassay strongly correlate with the data of laser granulometry analyses, which indicate that the most toxic samples had a significantly higher percentage of particles in the size range less than 1 μm. Visual observation with an optical microscope showed intensive agglomeration of the particles emitted by diesel-powered vehicles with microalgae cells. Moreover, within the scope of this research, we did not observe the direct influence of metal content in the particles to the level of their aquatic toxicity, and we can conclude that physical damage is the most probable mechanism of toxicity for vehicle emitted particles. |
| Databáze: | OpenAIRE |
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