Special Issue "Oxidative Potential of Atmospheric Aerosols"
Deadline for manuscript submissions: closed (31 October 2019).
Interests: aerosol geochemistry; atmospheric composition and air quality; organic aerosols
Interests: electrochemistry, (bio)sensors, surface analysis, thin (bio)films, nano materials, CMEs
Interests: analytical environmental chemistry; aerosol chemical characterization; development of analytical procedure for environmental matrices
Interests: atmosphere composition; toxicological effects of atmospheric aerosols and sources; characterisation of aerosol sources; receptor models; air quality and health; turbulent fluxes; particle deposition; nucleation process
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In recent years, oxidative stress has been proposed as an important mechanism of toxicity of atmospheric aerosols. This is caused by the oxidative potential (OP) of particulate matter (PM) that measures the capacity of inhaled particulate matter (PM) to induce a redox imbalance generated through the consumption of antioxidants and the production of reactive oxygen species (ROS). The OP is evaluated through acellular or in vitro assays, and an issue in current research is the comparability of different assays and protocols as well as the correlation between acellular OP and in vitro (or in vivo) toxicity. There is a lack of long-term studies of PM oxidative potential in Europe, even though several studies have been done worldwide, suggesting that smaller size fractions are generally associated with higher specific (intrinsic) OP compared with larger PM size fractions. An increasing number of studies, in different sites and for different particle sizes, have attempted to associate OP with specific chemical components in the aerosol, like, for instance, water-soluble organic carbon (WSOC) and water-soluble transition metals. Current studies suggest that the main sources that drive PM oxidative potential are combustion sources (like biomass burning, and road traffic); instead, particles due to natural sources (like soil/desert dust) seem to have lower specific OP. Moreover, recent studies show that photochemical aging increases the oxidative potential of atmospheric aerosol. However, several aspects regarding the specific chemical species, aerosol sources, and atmospheric processes that affect OP are not well established, and further research is needed. Another topic that needs extensive research is the characterization of the OP of indoor aerosols. In this Special Issue, we promote the publication of papers dealing broadly with the topic of characterization of the oxidative potential of atmospheric particles addressing several different perspectives. These include laboratory studies and measurement protocols, a comparison of acellular and in vitro or in vivo approaches, the influence of chemical composition and sources on oxidative potential, indoor and outdoor measurements, source apportionment results, as well as the assessment of health effects related to oxidative stress and population exposure.
Dr. Stefano Decesari
Prof. Dr. Maria Rachele Guascito
Prof. Dr. Maria Chiara Pietrogrande
Dr. Daniele Contini
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atmosphere is an international peer-reviewed open access monthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- reactive oxygen species
- oxidative potential
- chemical composition of aerosols
- natural and anthropogenic sources of aerosols
- toxicity of aerosols
- impact on health and the environment