Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment
We have conducted a comprehensive sampling campaign of PM₁₀ pollutants at a site next to a major highway, using standard protocols. Particulate matter (PM) total mass, elemental and chemical/mineral compositions of the fine and coarse fractions of traffic-related PM pollutants were determined using...
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , |
| التنسيق: | article |
| منشور في: |
2021
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://hdl.handle.net/11073/23892 |
| الوسوم: |
إضافة وسم
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| _version_ | 1864513440675004416 |
|---|---|
| author | Hamdan, Nasser |
| author2 | Alawadhi, Hussain Shameer, Mohamed |
| author2_role | author author |
| author_facet | Hamdan, Nasser Alawadhi, Hussain Shameer, Mohamed |
| author_role | author |
| dc.creator.none.fl_str_mv | Hamdan, Nasser Alawadhi, Hussain Shameer, Mohamed |
| dc.date.none.fl_str_mv | 2021 2022-05-25T10:04:53Z 2022-05-25T10:04:53Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | Hamdan NM, Alawadhi H and Shameer M (2021) Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment. Front. Environ. Sci. 9:666678. doi: 10.3389/fenvs.2021.666678 2296-665X http://hdl.handle.net/11073/23892 10.3389/fenvs.2021.666678 |
| dc.language.none.fl_str_mv | en_US |
| dc.publisher.none.fl_str_mv | Frontiers Media S.A. |
| dc.relation.none.fl_str_mv | https://doi.org/10.3389/fenvs.2021.666678 |
| dc.subject.none.fl_str_mv | Chemical composition Anthropogenic sources Traffic site Aerosol pollution Seasonal variation PM₁₀ |
| dc.title.none.fl_str_mv | Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment |
| dc.type.none.fl_str_mv | Peer-Reviewed Published version info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | We have conducted a comprehensive sampling campaign of PM₁₀ pollutants at a site next to a major highway, using standard protocols. Particulate matter (PM) total mass, elemental and chemical/mineral compositions of the fine and coarse fractions of traffic-related PM pollutants were determined using several complementary techniques, including gravimetric analysis, x-ray fluorescence, scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction. The PM mass concentrations show that PM₁₀ is within acceptable international standards except during dust storms within the sampled periods. Desert dust, crustal minerals, and sea salts are the major natural sources of PM₁₀ pollution. Examples of these minerals are quartz [SiO₂], calcite [CaCO₃], gypsum [CaSO₄·2H₂O], palygorskite [(Mg,Al)₂Si₄O₁₀ (OH)•₄(H₂O], chlorite-serpentine [(Mg,Fe)₆AlSi₃O₁₀ (OH)₈], halite [NaCl] and nitratine [NaNO₃]. Anthropogenic mineral-based pollutants, such as mascagnite [(NH₄)₂SO₄] and koktaite [(NH₄)₂Ca(SO₄)₂·H₂O], were also observed to contribute to PM₁₀. Trace elements such as Zn, Cu, Fe, Cr and Mn that are markers for traffic sources, Ni and V that are markers for heavy oil combustion, and Pb, which is attributed to industrial emissions, were also identified in PM₁₀. Seasonal variation of the average total mass concentrations and the average mass concentration of elements emitted from natural sources show that the hot season is associated with higher pollution levels compared to the cold season due to increased dust events in the spring and summer. Correlation coefficients between elements have identified elements originating from common sources such as dust storms (e.g., Si, Ca, Al, Fe, Ti, Mn) and sea breeze (Cl and Na), in addition to anthropogenic elements. Enrichment factors calculations have identified elements that mainly have crustal origins, and elements that are partially or highly enriched by humans. Anthropogenic elements were more enriched during the cold season due to reduced human activities in the summer.. |
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| id | aus_e1bf71a452d014fa91bd062a1c8ece59 |
| identifier_str_mv | Hamdan NM, Alawadhi H and Shameer M (2021) Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment. Front. Environ. Sci. 9:666678. doi: 10.3389/fenvs.2021.666678 2296-665X 10.3389/fenvs.2021.666678 |
| language_invalid_str_mv | en_US |
| network_acronym_str | aus |
| network_name_str | aus |
| oai_identifier_str | oai:repository.aus.edu:11073/23892 |
| publishDate | 2021 |
| publisher.none.fl_str_mv | Frontiers Media S.A. |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh EnvironmentHamdan, NasserAlawadhi, HussainShameer, MohamedChemical compositionAnthropogenic sourcesTraffic siteAerosol pollutionSeasonal variationPM₁₀We have conducted a comprehensive sampling campaign of PM₁₀ pollutants at a site next to a major highway, using standard protocols. Particulate matter (PM) total mass, elemental and chemical/mineral compositions of the fine and coarse fractions of traffic-related PM pollutants were determined using several complementary techniques, including gravimetric analysis, x-ray fluorescence, scanning electron microscopy, energy dispersive spectroscopy, and x-ray diffraction. The PM mass concentrations show that PM₁₀ is within acceptable international standards except during dust storms within the sampled periods. Desert dust, crustal minerals, and sea salts are the major natural sources of PM₁₀ pollution. Examples of these minerals are quartz [SiO₂], calcite [CaCO₃], gypsum [CaSO₄·2H₂O], palygorskite [(Mg,Al)₂Si₄O₁₀ (OH)•₄(H₂O], chlorite-serpentine [(Mg,Fe)₆AlSi₃O₁₀ (OH)₈], halite [NaCl] and nitratine [NaNO₃]. Anthropogenic mineral-based pollutants, such as mascagnite [(NH₄)₂SO₄] and koktaite [(NH₄)₂Ca(SO₄)₂·H₂O], were also observed to contribute to PM₁₀. Trace elements such as Zn, Cu, Fe, Cr and Mn that are markers for traffic sources, Ni and V that are markers for heavy oil combustion, and Pb, which is attributed to industrial emissions, were also identified in PM₁₀. Seasonal variation of the average total mass concentrations and the average mass concentration of elements emitted from natural sources show that the hot season is associated with higher pollution levels compared to the cold season due to increased dust events in the spring and summer. Correlation coefficients between elements have identified elements originating from common sources such as dust storms (e.g., Si, Ca, Al, Fe, Ti, Mn) and sea breeze (Cl and Na), in addition to anthropogenic elements. Enrichment factors calculations have identified elements that mainly have crustal origins, and elements that are partially or highly enriched by humans. Anthropogenic elements were more enriched during the cold season due to reduced human activities in the summer..College of Arts and SciencesAmerican University of SharjahFrontiers Media S.A.2022-05-25T10:04:53Z2022-05-25T10:04:53Z2021Peer-ReviewedPublished versioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfHamdan NM, Alawadhi H and Shameer M (2021) Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment. Front. Environ. Sci. 9:666678. doi: 10.3389/fenvs.2021.6666782296-665Xhttp://hdl.handle.net/11073/2389210.3389/fenvs.2021.666678en_UShttps://doi.org/10.3389/fenvs.2021.666678oai:repository.aus.edu:11073/238922024-08-22T12:02:26Z |
| spellingShingle | Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment Hamdan, Nasser Chemical composition Anthropogenic sources Traffic site Aerosol pollution Seasonal variation PM₁₀ |
| status_str | publishedVersion |
| title | Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment |
| title_full | Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment |
| title_fullStr | Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment |
| title_full_unstemmed | Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment |
| title_short | Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment |
| title_sort | Physicochemical Characterization and Seasonal Variations of PM10 Aerosols in a Harsh Environment |
| topic | Chemical composition Anthropogenic sources Traffic site Aerosol pollution Seasonal variation PM₁₀ |
| url | http://hdl.handle.net/11073/23892 |