Airborne particulate matter biotoxicity estimated by chemometric analysis on bacterial luminescence data
| Autor: | Silvia Parmeggiani, Laura Tositti, Elida Nora Ferri, Luca Bolelli, Erika Brattich, Stefano Girotti |
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| Přispěvatelé: | Laura Tositti, Erika Brattich, Silvia Parmeggiani, Luca Bolelli, Elida Ferri, Stefano Girotti |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Environmental Engineering
Luminescence 010504 meteorology & atmospheric sciences Bioluminescent bacteria Photobacterium phosphoreum 010501 environmental sciences Chemometric multivariate analysis 01 natural sciences PM10 Toxicity Tests Environmental Chemistry Waste Management and Disposal Chemical composition 0105 earth and related environmental sciences Pollutant Air Pollutants biology Bacteria Toxicity Chemistry Photobacterium Luminescent bacteria Dust Particulates biology.organism_classification Pollution Environmental chemistry Light emission Particulate Matter |
| Popis: | In this work, PM10 samples previously subjected to thorough chemical speciation and receptor modelling, have been investigated for their bio-toxicity using an inhibition test based on bacterial luminescence modulation when in contact with airborne particulate samples. The variation of light emission intensity from a luminescent bacteria strain, the Photobacterium phosphoreum, is proposed as an efficient proxy for the quantification of bio-toxic effects induced by airborne particulate matter. PM10 samples characterized by definite levels of pollutants from the pertaining air shed were found to induce a decrease in the bacterial bioluminescence intensity, expressed as percentage of Inhibition Ratio (IR%). This behaviour suggests the decay of this energy-consuming activity because of a toxic effect. Cluster analysis on chemical composition and IR% data provides evidence of a statistically significant association between the adverse effects on living cells and the range of specific chemical species in PM10. |
| Databáze: | OpenAIRE |
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