A semicontinuous study on the ecotoxicity of atmospheric particles using a versatile aerosol concentration enrichment system (VACES): development and field characterization

A semicontinuous study on the ecotoxicity of atmospheric particles using a versatile aerosol concentration enrichment system (VACES): development and field characterization

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Oxidative stress can be used to evaluate not only adverse health effects but also adverse ecological effects, but limited research uses eco-toxicological assay to assess the risks posed by particle matters to non-human biomes.One important reason might be that the concentration of toxic components of atmospheric particles is far below the high detection limit of eco-toxic measurement.To solve the rapid detection problem, we extended a versatile aerosol concentration enrichment system (VACES) for ecotoxicity aerosol measurement and firstly used VACES to provide a comparison of ecotoxicity Sweatshirt between non-concentrated and concentrated aerosols in ambient air.In this study, the total concentration (number or mass), the concentration of chemical components and the ecotoxicity were all increased by approximately 7 to 10 times in VACES, making the detection of ecotoxicity above the baseline.The comparison of ecotoxicity data and PM2.

5 concentration showed that low concentration was not matched with ecotoxicity, although high concentration corresponded to higher ecotoxicity.In addition, the higher Vaporizer Parts saturation temperature in VACES caused a loss of particulate matter, of which nitrate accounted for about 18 %.