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Research Article
Angelo Cecinato
National Research Council of Italy
Corresponding Author
ORCiD: https://orcid.org/0000-0002-3308-0479
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The composition of organic fraction released in emissions varies with its nature and contour conditions; hence, the chemical signature of atmospheric particulate matter and dusts are investigated to identify the pollution sources and assess the respective aftermaths on environment and health. For this purpose, three complementary tools are usually adopted, i.e. specific source markers, concentration ratios of pairs of congeners, and percent distribution profiles of homologues (including derived “carbon preference indexes”). This paper provides an overview of investigations dealing with chemical signature of emission sources, applied to non-polar aliphatic (alkanes), aromatic (PAHs, Nitro-PAHs) and polar (fatty acids, organic halides, polysaccharides) organics affecting atmospheric particulate matter and deposition dust. Despite a rich literature is nowadays available, further investigations seem necessary to clarify the nature, sources and behaviors of mid-volatile, non-polar organic contaminants. More sophisticated investigations have gained importance recently (principal component analysis, source factorization modelling), nevertheless molecular fingerprints remain suitable to draw primary insights about the nature and impact of sources of environmental pollution.
Keywords
molecular markers, chemical source signature, diagnostic concentration ratios, particulate organic matter (POM), air pollution, toxicants
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The full text of this article is available to read as a PDF.
This is a list of supplementary files associated with this preprint. Click to download.
- FigS1.jpg
Supplementary Materials: Figure S1. GC-MS profiles (reconstructed ion chromatograms) of non-polar fraction extracted from particulate matters. A1) El Bey, Tunisia, m/z = 85 (n-alkanes); A2) El Bey, Tunisia, m/z = 83 (n-alkenes); B1) Tipaza, Algeria, m/z = 85 (n-alkanes); B2) Tipaza, Algeria, m/z = 83 (n-alkenes); C1) Reggio Calabria, Italy, m/z = 85 (n-alkanes); C2) Reggio Calabria, Italy, m/z = 83 (n-alkenes).
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This preprint is under consideration at Environmental Science and Pollution Research. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Angelo Cecinato
National Research Council of Italy
Corresponding Author
ORCiD: https://orcid.org/0000-0002-3308-0479
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 15 Feb, 2021
No community comments so far
Reviews received
Received 14 Feb, 2021
Reviewers invited
Invitations sent on 10 Feb, 2021
Editor invited
On 02 Feb, 2021
First submitted
On 28 Jan, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The composition of organic fraction released in emissions varies with its nature and contour conditions; hence, the chemical signature of atmospheric particulate matter and dusts are investigated to identify the pollution sources and assess the respective aftermaths on environment and health. For this purpose, three complementary tools are usually adopted, i.e. specific source markers, concentration ratios of pairs of congeners, and percent distribution profiles of homologues (including derived “carbon preference indexes”). This paper provides an overview of investigations dealing with chemical signature of emission sources, applied to non-polar aliphatic (alkanes), aromatic (PAHs, Nitro-PAHs) and polar (fatty acids, organic halides, polysaccharides) organics affecting atmospheric particulate matter and deposition dust. Despite a rich literature is nowadays available, further investigations seem necessary to clarify the nature, sources and behaviors of mid-volatile, non-polar organic contaminants. More sophisticated investigations have gained importance recently (principal component analysis, source factorization modelling), nevertheless molecular fingerprints remain suitable to draw primary insights about the nature and impact of sources of environmental pollution.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
The full text of this article is available to read as a PDF.
This is a list of supplementary files associated with this preprint. Click to download.
- FigS1.jpg
Supplementary Materials: Figure S1. GC-MS profiles (reconstructed ion chromatograms) of non-polar fraction extracted from particulate matters. A1) El Bey, Tunisia, m/z = 85 (n-alkanes); A2) El Bey, Tunisia, m/z = 83 (n-alkenes); B1) Tipaza, Algeria, m/z = 85 (n-alkanes); B2) Tipaza, Algeria, m/z = 83 (n-alkenes); C1) Reggio Calabria, Italy, m/z = 85 (n-alkanes); C2) Reggio Calabria, Italy, m/z = 83 (n-alkenes).
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