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Cherfaoui B, Lemou A, Rabhi L, Cherifi N, Ladji R. Water-soluble organic compounds (WSOC) from atmospheric aerosols in Bou-Ismail (Algeria). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:50700-50708. [PMID: 39098969 DOI: 10.1007/s11356-024-34520-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 07/24/2024] [Indexed: 08/06/2024]
Abstract
In this contribution, we report the study of nuclear resonance magnetic spectroscopy techniques (1H-NMR, 13C-NMR, and 2D-NMR) efficiency in the characterisation of the functional composition of water-soluble organic compounds (WSOC) from atmospheric aerosols. The chosen site was our scientific and technical center of research (CRAPC) situated in Algerian Bou-Ismail city. where the concentrations of PM10 were found to be between 15.66 and 142.19 µg.m-3. As results, 1H-NMR analysis showed the coexistence of biological material and emissions from urban and biomass burning. The dominant source was identified by quantitative integration of each 1H NMR spectral region. By using the HSQC technique, many peaks are revealed in biogenic samples including biomass burning. On the other hand, the identification of the source of various organic compounds and their functional composition is possible through specific NMR spectra, which can also be used to adjust the surrounding organic aerosol sources.
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Affiliation(s)
- Brahim Cherfaoui
- Centre de Recherche Scientifique Et Technique en Analyses Physico-Chimiques (CRAPC), Zone Industrielle, BP 384, Bou-Ismail, Tipaza, Algeria.
- Unité de Recherche en Analyses Physico-Chimiques des Milieux Fluides et Sols - (URAPC-MFS/ CRAPC), 11, Chemin Doudou Mokhtar, Ben Aknoun, Alger, Algeria.
| | - Abdelkader Lemou
- Centre de Recherche Scientifique Et Technique en Analyses Physico-Chimiques (CRAPC), Zone Industrielle, BP 384, Bou-Ismail, Tipaza, Algeria
- Unité de Recherche en Analyses Physico-Chimiques des Milieux Fluides et Sols - (URAPC-MFS/ CRAPC), 11, Chemin Doudou Mokhtar, Ben Aknoun, Alger, Algeria
| | - Lyes Rabhi
- Centre de Recherche Scientifique Et Technique en Analyses Physico-Chimiques (CRAPC), Zone Industrielle, BP 384, Bou-Ismail, Tipaza, Algeria
- Unité de Recherche en Analyses Physico-Chimiques des Milieux Fluides et Sols - (URAPC-MFS/ CRAPC), 11, Chemin Doudou Mokhtar, Ben Aknoun, Alger, Algeria
| | - Nabila Cherifi
- Centre de Recherche Scientifique Et Technique en Analyses Physico-Chimiques (CRAPC), Zone Industrielle, BP 384, Bou-Ismail, Tipaza, Algeria
- Unité de Recherche en Analyses Physico-Chimiques des Milieux Fluides et Sols - (URAPC-MFS/ CRAPC), 11, Chemin Doudou Mokhtar, Ben Aknoun, Alger, Algeria
| | - Riad Ladji
- Centre de Recherche Scientifique Et Technique en Analyses Physico-Chimiques (CRAPC), Zone Industrielle, BP 384, Bou-Ismail, Tipaza, Algeria
- Unité de Recherche en Analyses Physico-Chimiques des Milieux Fluides et Sols - (URAPC-MFS/ CRAPC), 11, Chemin Doudou Mokhtar, Ben Aknoun, Alger, Algeria
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Christodoulou A, Bezantakos S, Bourtsoukidis E, Stavroulas I, Pikridas M, Oikonomou K, Iakovides M, Hassan SK, Boraiy M, El-Nazer M, Wheida A, Abdelwahab M, Sarda-Estève R, Rigler M, Biskos G, Afif C, Borbon A, Vrekoussis M, Mihalopoulos N, Sauvage S, Sciare J. Submicron aerosol pollution in Greater Cairo (Egypt): A new type of urban haze? ENVIRONMENT INTERNATIONAL 2024; 186:108610. [PMID: 38626495 DOI: 10.1016/j.envint.2024.108610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 02/24/2024] [Accepted: 03/26/2024] [Indexed: 04/18/2024]
Abstract
Greater Cairo, the largest megacity of the Middle East North Africa (MENA) region, is currently suffering from major aerosol pollution, posing a significant threat to public health. However, the main sources of pollution remain insufficiently characterized due to limited atmospheric observations. To bridge this knowledge gap, we conducted a continuous 2-month field study during the winter of 2019-2020 at an urban background site, documenting for the first time the chemical and physical properties of submicron (PM1) aerosols. Crustal material from both desert dust and road traffic dust resuspension contributed as much as 24 % of the total PM1 mass (rising to 66 % during desert dust events), a figure not commonly observed in urban environments. Our observations showed significant decreases in black carbon concentrations and ammonium sulfate compared to data from 15 years ago, indicating an important reduction in both local and regional emissions as a result of effective mitigation measures. The diurnal variability of carbonaceous aerosols was attributed to emissions emanating from local traffic at rush hours and nighttime open biomass burning. Surprisingly, semi-volatile ammonium chloride (NH4Cl) originating from local open biomass and waste burning was found to be the main chemical species in PM1 over Cairo. Its nighttime formation contributed to aerosol water uptake during morning hours, thereby playing a major role in the build-up of urban haze. While our results confirm the persistence of a significant dust reservoir over Cairo, they also unveil an additional source of highly hygroscopic (semi-volatile) inorganic salts, leading to a unique type of urban haze. This haze, with dominant contributors present in both submicron (primarily as NH4Cl) and supermicron (largely as dust) modes, underscores the potential implications of heterogeneous chemical transformation of air pollutants in urban environments.
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Affiliation(s)
- Aliki Christodoulou
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus; IMT Nord Europe, Institut Mines-Télécom, Univ. Lille, Centre for Energy and Environment, 59000 Lille, France.
| | - Spyros Bezantakos
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus
| | | | - Iasonas Stavroulas
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus; Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, Greece
| | - Michael Pikridas
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus
| | - Konstantina Oikonomou
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus
| | - Minas Iakovides
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus
| | - Salwa K Hassan
- Air Pollution Research Department, Environment and Climate Change Research Institute, National, Research Centre, El Behooth Str., Giza 12622 Dokki, Egypt
| | - Mohamed Boraiy
- Physics and Mathematical Engineering Department, Faculty of Engineering, Port Said University, Port Said, Egypt
| | - Mostafa El-Nazer
- Theoretical Physics Department, Physics Institute, National Research Centre, El Behooth Str., Giza 12622 Dokki, Egypt
| | - Ali Wheida
- Theoretical Physics Department, Physics Institute, National Research Centre, El Behooth Str., Giza 12622 Dokki, Egypt
| | - Magdy Abdelwahab
- Astronomy and Meteorology Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - Roland Sarda-Estève
- Laboratoire Des Sciences Du Climat Et de l'Environnement (LSCE), CNRS-CEA-UVSQ, Gif-sur-Yvette, France
| | - Martin Rigler
- Research and Development Department, Aerosol D.o.o., Ljubjana, Slovenia
| | - Giorgos Biskos
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus
| | - Charbel Afif
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus; Emissions, Measurements, and Modeling of the Atmosphere (EMMA) Laboratory, CAR, Faculty of Science, Saint Joseph University, Beirut, Lebanon
| | - Agnes Borbon
- Laboratoire de Météorologie Physique, UMR6016, Université Clermont Auvergne, OPGC, CNRS, 63000 Clermont-Ferrand, France
| | - Mihalis Vrekoussis
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus; University of Bremen, Institute of Environmental Physics and Remote Sensing (IUP), Germany; Center of Marine Environmental Sciences (MARUM), University of Bremen, Germany
| | - Nikos Mihalopoulos
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus; Institute for Environmental Research and Sustainable Development, National Observatory of Athens, Athens, Greece
| | - Stéphane Sauvage
- IMT Nord Europe, Institut Mines-Télécom, Univ. Lille, Centre for Energy and Environment, 59000 Lille, France
| | - Jean Sciare
- Climate and Atmosphere Research Center (CARE-C), the Cyprus Institute, Nicosia, 2121, Cyprus
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Faridi S, Yousefian F, Roostaei V, Harrison RM, Azimi F, Niazi S, Naddafi K, Momeniha F, Malkawi M, Moh'd Safi HA, Rad MK, Hassanvand MS. Source apportionment, identification and characterization, and emission inventory of ambient particulate matter in 22 Eastern Mediterranean Region countries: A systematic review and recommendations for good practice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 310:119889. [PMID: 35932896 DOI: 10.1016/j.envpol.2022.119889] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/16/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
Little is known about the main sources of ambient particulate matter (PM) in the 22 Eastern Mediterranean Region (EMR) countries. We designed this study to systematically review all published and unpublished source apportionment (SA), identification and characterization studies as well as emission inventories in the EMR. Of 440 articles identified, 82 (11 emission inventory ones) met our inclusion criteria for final analyses. Of 22 EMR countries, Iran with 30 articles had the highest number of studies on source specific PM followed by Pakistan (n = 15 articles) and Saudi Arabia (n = 8 papers). By contrast, there were no studies in Afghanistan, Bahrain, Djibouti, Libya, Somalia, Sudan, Syria, Tunisia, United Arab Emirates and Yemen. Approximately 72% of studies (51) were published within a span of 2015-2021.48 studies identified the sources of PM2.5 and its constituents. Positive matrix factorization (PMF), principal component analysis (PCA) and chemical mass balance (CMB) were the most common approaches to identify the source contributions of ambient PM. Both secondary aerosols and dust, with 12-51% and 8-80% (33% and 30% for all EMR countries, on average) had the greatest contributions in ambient PM2.5. The remaining sources for ambient PM2.5, including mixed sources (traffic, industry and residential (TIR)), traffic, industries, biomass burning, and sea salt were in the range of approximately 4-69%, 4-49%, 1-53%, 7-25% and 3-29%, respectively. For PM10, the most dominant source was dust with 7-95% (49% for all EMR countries, on average). The limited number of SA studies in the EMR countries (one study per approximately 9.6 million people) in comparison to Europe and North America (1 study per 4.3 and 2.1 million people respectively) can be augmented by future studies that will provide a better understanding of emission sources in the urban environment.
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Affiliation(s)
- Sasan Faridi
- Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Yousefian
- Department of Environmental Health Engineering, Faculty of Health, Kashan University of Medical Sciences, Kashan, Iran
| | - Vahid Roostaei
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Roy M Harrison
- School of Geography Earth and Environmental Science, University of Birmingham, Birmingham, UK; Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Faramarz Azimi
- Environmental Health Research Center, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Sadegh Niazi
- International Laboratory for Air Quality and Health, School of Earth and Atmospheric Sciences, Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Queensland, Australia
| | - Kazem Naddafi
- Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Momeniha
- Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
| | - Mazen Malkawi
- Environmental Health Exposures Centre for Environmental Health Action (CEHA), World Health Organization (WHO), Jordan
| | - Heba Adel Moh'd Safi
- Environmental Health Exposures Centre for Environmental Health Action (CEHA), World Health Organization (WHO), Jordan
| | - Mona Khaleghy Rad
- Environmental Health Exposures Centre for Environmental Health Action (CEHA), World Health Organization (WHO), Jordan
| | - Mohammad Sadegh Hassanvand
- Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran; Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
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Hereher M, Eissa R, Alqasemi A, El Kenawy AM. Assessment of air pollution at Greater Cairo in relation to the spatial variability of surface urban heat island. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:21412-21425. [PMID: 34757560 PMCID: PMC8578915 DOI: 10.1007/s11356-021-17383-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
Greater Cairo, Egypt, which lies in the apex of the Nile Delta, is one of the most populated regions in the world. Air pollution is a profound environmental issue prevailing in the urban/rural landscapes of this crowded megacity. The objectives of the present study were to utilize remotely sensed data in order to address the seasonal variations of the nocturnal surface urban heat island intensity (SUHII) as extracted from the American Moderate Resolution Imaging Spectroradiometer (MODIS) satellite and the related seasonal distribution of selected air pollutants, including nitrogen dioxide (NO2), sulphur dioxide (SO2), and carbon monoxide (CO) as extracted from the European TROPOspheric Monitoring Instrument (TROPOMI) for the period from 2018 to 2021. It is observed that there is clear nocturnal urban heat island over Greater Cairo, particularly at the administrative districts dominated by urban land use with high density of population and at the industrial and power generation locations. The highest SUHII is observed during winter. On the other hand, the selected pollutants also represent an urban pollution island (UPI) capping the regions of high SUHII. At the seasonal level, the highest NO2 correlation with the SUHII occurs during spring (R2 = 0.59), while the CO correlates maximum during winter (R2 = 0.51). Nonetheless, the seasonal SO2 distribution is poorly related to the SUHII as this specific pollutant is significantly associated with the industrial land use. Climatic and topographic factors could intensify the distribution of air pollution in the study area. Results of this study demonstrate the significance of geospatial technology tools in the subtle analysis and addressing regional air pollution. The outputs are also of a paramount implication on the management of urban environment and the adaptation of urban air quality.
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Affiliation(s)
- Mohamed Hereher
- Geography Department, College of Arts and Social Sciences, Sultan Qaboos University, Muscat, Oman.
- Department of Environmental Sciences, Faculty of Science, Damietta University, New Damietta, Egypt.
| | - Rasha Eissa
- Egyptian Environmental Affairs Agency, Mansoura Branch, Mansoura, Egypt
| | - Abduldaem Alqasemi
- Department of Geography and Urban Sustainability, United Arab Emirates University, Al-Ain, UAE
| | - Ahmed M El Kenawy
- Geography Department, College of Arts and Social Sciences, Sultan Qaboos University, Muscat, Oman
- Geography Department, Faculty of Education, Mansoura University, Mansoura, Egypt
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Pallarés S, Gómez ET, Martínez-Poveda Á, Jordán MM. Distribution Levels of Particulate Matter Fractions (<2.5 µm, 2.5-10 µm and >10 µm) at Seven Primary Schools in a European Ceramic Cluster. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18094922. [PMID: 34063092 PMCID: PMC8124735 DOI: 10.3390/ijerph18094922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/21/2021] [Accepted: 04/27/2021] [Indexed: 11/16/2022]
Abstract
This study addresses the concentration of particulate matter and their size using a statistical analysis of data obtained inside seven schools located in the towns of Castellón (S1, S2, and S3), Alcora (S4, S5, and S6) and Lucena (S7) in northeast Spain. Samples were taken for five to eight hours, depending on school hours, to obtain a monthly sample for each school. The main goal of this study is to assess the differences depending on the type of location and the sampling point to be able to design corrective measures that improve the habitability and safety of the teaching spaces analyzed. The lowest concentrations of fine particulate matter, less than 2.5 µm, were registered at the rural location. The values of these particles found in industrial and urban locations were not substantially different. In the case of particulate matter between 2.5 and 10 µm, significant differences were observed between the three types of locations. The lowest concentrations of particles larger than 10 µm were registered at the rural location, and the highest concentrations were found at the industrial locations. Among the urban stations, the particle concentration of this fraction in station S2 was significantly higher than that in stations S1 and S3, which had similar concentrations. These values are also similar to those registered at school S6, which is at an industrial location. The resuspension of particles from both indoor sources as well as those transported from the outside is an important factor in the concentrations of particles inside classrooms.
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Affiliation(s)
| | - Eva Trinidad Gómez
- Department of Agricultural and Environmental Sciences, Jaume I University, Campus Riu Sec s/n, 12071 Castellón, Spain;
| | - África Martínez-Poveda
- Department of Agricultural Economics, Cartographic Engineering, Graphic Expression in Engineering, Miguel Hernández University of Elche, 03312 Orihuela (Alicante), Spain;
| | - Manuel Miguel Jordán
- Department of Agrochemistry and Environment, Miguel Hernández University of Elche, 03202 Elche (Alicante), Spain
- Correspondence: ; Tel.: +34-966658896
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Rovella N, Aly N, Comite V, Randazzo L, Fermo P, Barca D, Alvarez de Buergo M, La Russa MF. The environmental impact of air pollution on the built heritage of historic Cairo (Egypt). THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 764:142905. [PMID: 33127125 DOI: 10.1016/j.scitotenv.2020.142905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/03/2020] [Accepted: 10/03/2020] [Indexed: 06/11/2023]
Abstract
In the last decades, many researchers investigated the relation between environmental pollution and the degradation phenomena on the built heritage, because of their rapid increase and growing harmfulness. Consequently, the identification of the main pollution sources has become essential to define mitigation actions against degradation and alteration phenomena of the stone materials. In this way, the present paper is focused on the study of the effect of air pollution on archaeological buildings in Historic Cairo. A multi-methodological approach was used to obtain information about the chemical composition of examined black crusts and to clarify their correlation with the air pollution, specifically the heavy metals and the carbonaceous fraction, their main sources, and their impact on the state of conservation of the studied sites. All specimens were characterized by polarized optical microscopy (POM), X-Ray Diffraction (XRD), Electron Probe Micro Analyser coupled with energy dispersive X-ray spectrometry (EPMA-EDS), laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and Thermo-gravimetric analysis (TGA). The study conducted on heavy metals and carbonaceous fraction showed that the greatest contribution of the accumulation of pollutants is attributable to vehicular traffic and industrial activities, the main polluting sources in Cairo city. Furthermore, the comparison with other studies conducted on the carbonaceous fraction in the black crusts coming from both European and non-European cities, has allowed to discriminate the contribution of the primary and secondary polluting sources. Finally, the correlation of the data obtained on the heavy metals and the carbonaceous fraction allowed to formulate important hypothesis about the processes of sulphation.
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Affiliation(s)
- Natalia Rovella
- Department of Biology, Ecology and Earth Sciences (DiBEST), University of Calabria, 87036 Arcavacata di Rende, CS, Italy.
| | - Nevin Aly
- Department of Science and Engineering Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, 43512 Suez, Egypt.
| | - Valeria Comite
- Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, Italy.
| | - Luciana Randazzo
- Department of Biology, Ecology and Earth Sciences (DiBEST), University of Calabria, 87036 Arcavacata di Rende, CS, Italy.
| | - Paola Fermo
- Department of Chemistry, University of Milan, Via Golgi 19, 20133 Milan, Italy.
| | - Donatella Barca
- Department of Biology, Ecology and Earth Sciences (DiBEST), University of Calabria, 87036 Arcavacata di Rende, CS, Italy.
| | | | - Mauro Francesco La Russa
- Department of Biology, Ecology and Earth Sciences (DiBEST), University of Calabria, 87036 Arcavacata di Rende, CS, Italy.
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Faraji Ghasemi F, Dobaradaran S, Saeedi R, Nabipour I, Nazmara S, Ranjbar Vakil Abadi D, Arfaeinia H, Ramavandi B, Spitz J, Mohammadi MJ, Keshtkar M. Levels and ecological and health risk assessment of PM 2.5-bound heavy metals in the northern part of the Persian Gulf. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:5305-5313. [PMID: 31848967 DOI: 10.1007/s11356-019-07272-7] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 12/03/2019] [Indexed: 05/24/2023]
Abstract
Bushehr, a port along the northern part of the Persian Gulf, has repeatedly encountered dust storms in recent years but there is not been a comprehensive study on the PM2.5 contents in this region. The present study reports the characteristics and health risks of atmospheric PM2.5-bound heavy metals (HMs) in Bushehr from December 2016 to September 2017. A total of 46 samples were analyzed, and a high volume air sampler equipped with quartz fiber filters was used for sampling. Inductively coupled plasma optical emission spectroscopy (ICP-OES) was also used for HMs analyses. Risk assessment and hazard index (HI) of these metals were computed by using USEPA's exposure parameters. The results showed that the average 24-h mass concentration of PM2.5 ranged from 22.09 to 292.45 μg/m3. The results also indicated that 95.65 and 82.61% of the samples were higher than WHO and EPA guidelines for 24-h PM2.5. Also there was no statistically significant relationship between wind direction and PM2.5.The average concentration levels of seven measured metals (Cd, Co, Cr, Fe, Ni, Pb, and V) in the PM2.5 samples were in the range of 6.03 ng/m3 to 1335.94 ng/m3, and the order of their concentration was Fe > Ni > Pb > Cr > Cd > V > Co. Principal component analysis (PCA) showed that PM2.5-bound heavy metals were categorized in three groups. The ecological risk level of calculated metals was very significant, and the major contribution of the ecological risk was related to Cd. The highest HQ in children and adults was related to Cr, and overall HI in children was higher than adults. Also the RI values of Cr in both groups of children and adults were indicated high risk of developing cancer in human.
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Affiliation(s)
- Fatemeh Faraji Ghasemi
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Sina Dobaradaran
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran.
- Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran.
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran.
| | - Reza Saeedi
- Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Department of Health, Safety and Environment, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Iraj Nabipour
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Shahrokh Nazmara
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Dariush Ranjbar Vakil Abadi
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Hossein Arfaeinia
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Bahman Ramavandi
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Jörg Spitz
- Akademie für menschliche Medizin GmbH, Krauskopfallee 27, 65388, Schlangenbad, Germany
| | - Mohammad Javad Mohammadi
- Department of Environmental Health Engineering, School of Public Health and Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Mozhgan Keshtkar
- Department of Environmental Health Engineering, Faculty of Health, Bushehr University of Medical Sciences, Bushehr, Iran
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Shaltout AA, Boman J, Hassan SK, Abozied AM, Al-Ashkar EA, Abd-Elkader OH, Yassin MA, Al-Tamimi JH. Elemental Composition of PM 2.5 Aerosol in a Residential-Industrial Area of a Mediterranean Megacity. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 78:68-78. [PMID: 31760439 DOI: 10.1007/s00244-019-00688-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
Very little is known about the elemental composition and possible sources of fine aerosol particles from Mediterranean megacities. Fine aerosol particles were collected at a residential-industrial area in Greater Cairo, Egypt, during the period from October 2010 to May 2011. The elemental compositions of the collected samples were quantified by using a homemade energy dispersive x-ray fluorescence spectrometer, whereas black carbon was quantified by a black smoke detector. Fifteen elements have been quantified. Of these constituents, Ca, C, Cl, S, and Fe had the highest concentrations: greater than 1 µg m-3. The overall mean mass concentration of the collected samples equals 70 µg m-3; this value exceeds the European Union annual Air Quality Standard levels. The individual elemental concentrations of the fine particles were found to be dominated by elements linked to mineral dust. Most of the monthly variations of elemental concentrations can be attributed to seasonal meteorological conditions. Other possible sources were vehicle-exhaust and industrial activities. The results pinpoint the problem of identifying different sources when one source, in this case, the nearby deserts, is dominant. The results from this study contribute to the growing knowledge of concentrations, composition, and possible sources of ambient fine particulate matter.
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Affiliation(s)
- Abdallah A Shaltout
- Spectroscopy Department, Physics Division, National Research Centre, El-Behooth St., Dokki, Cairo, 12622, Egypt.
- Physics Department, Faculty of Science, Taif University, P.O. Box 888, Taif, 21974, Kingdom of Saudi Arabia.
| | - Johan Boman
- Department of Chemistry and Molecular Biology, Atmospheric Science, University of Gothenburg, 412 96, Gothenburg, Sweden
| | - Salwa K Hassan
- Air Pollution Research Department, National Research Centre, El-Behooth St., Dokki, Cairo, 12622, Egypt
| | - Asmaa M Abozied
- Spectroscopy Department, Physics Division, National Research Centre, El-Behooth St., Dokki, Cairo, 12622, Egypt
| | - Emad A Al-Ashkar
- Spectroscopy Department, Physics Division, National Research Centre, El-Behooth St., Dokki, Cairo, 12622, Egypt
| | - Omar H Abd-Elkader
- Physics & Astronomy Department, Science College, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
- Physics Division, Electron Microscope & Thin Films Department, National Research Centre, El Behooth St., Giza, 12622, Egypt
| | - M A Yassin
- Botany & Microbiology Department, Science College, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
| | - J H Al-Tamimi
- Zoology Department, Science College, King Saud University, P.O. Box 2455, Riyadh, 11451, Kingdom of Saudi Arabia
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Studying the Impact on Urban Health over the Greater Delta Region in Egypt Due to Aerosol Variability Using Optical Characteristics from Satellite Observations and Ground-Based AERONET Measurements. REMOTE SENSING 2019. [DOI: 10.3390/rs11171998] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This research addresses the aerosol characteristics and variability over Cairo and the Greater Delta region over the last 20 years using an integrative multi-sensor approach of remotely sensed and PM10 ground data. The accuracy of these satellite aerosol products is also evaluated and compared through cross-validation against ground observations from the AErosol RObotic NETwork (AERONET) project measured at local stations. The results show the validity of using Multi-angle Imaging Spectroradiometer (MISR) and Moderate Resolution Imaging Spectroradiometer (MODIS) sensors on the Terra and Aqua platforms for quantitative aerosol optical depth (AOD) assessment as compared to Ozone Monitoring Instrument (OMI), Sea-viewing Wide Field-of-view Sensor (SeaWiFS), and POLarization and Directionality of the Earth’s Reflectances (POLDER). In addition, extracted MISR-based aerosol products have been proven to be quite effective in investigating the characteristics of mixed aerosols. Daily AERONET AOD observations were collected and classified using K-means unsupervised machine learning algorithms, showing five typical patterns of aerosols in the region under investigation. Four seasonal aerosol emerging episodes are identified and analyzed using multiple indicators, including aerosol optical depth (AOD), size distribution, single scattering albedo (SSA), and Ångström exponent (AE). The movements and detailed aerosol composition of the aforementioned episodes are demonstrated using NASA’s Goddard Space Flight Center (GSFC) back trajectories model in collaboration with aerosol subtype products from the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) mission. These episodes indicate that during the spring, fall, and summer, most of the severe aerosol events are caused by dust or mixed related scenarios, whereas during winter, aerosols of finer size lead to severe heavy conditions. It also demonstrates the impacts of different aerosol sources on urban human health, which are presented by the variations of multiple parameters, including solar radiation, air temperature, humidity, and UV exposure. Scarce ground PM10 data were collected and compared against satellite products, yet owed to their discrete nature of availability, our approach made use of the Random Decision Forest (RDF) model to convert satellite-based AOD and other meteorological parameters to predict PM10. The RDF model with inputs from the Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2) and Global Land Data Assimilation System (GLDAS) datasets improves the performance of using AOD products to estimate PM10 values. The connection between climate variability and aerosol intensity, as well as their impact on health-related PM2.5 over Egypt is also demonstrated.
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Mostafa AN, Zakey AS, Alfaro SC, Wheida AA, Monem SA, Abdul Wahab MM. Validation of RegCM-CHEM4 model by comparison with surface measurements in the Greater Cairo (Egypt) megacity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:23524-23541. [PMID: 31203549 DOI: 10.1007/s11356-019-05370-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 05/03/2019] [Indexed: 06/09/2023]
Abstract
The densely populated Greater Cairo (GC) region suffers from severe air quality issues caused by high levels of anthropogenic activities, such as motorized traffic, industries, and agricultural biomass burning events, along with natural sources of particulate matter, such as wind erosion of arid surfaces. Surface-measured concentrations of particulate matter (PM10), sulfur dioxide (SO2), and ozone (O3) and its precursor's gases (nitrogen dioxide, NO2; carbon monoxide, CO) were obtained for the GC region. The PM10 concentrations were found to exceed remarkably the Egyptian guidelines (150 μg/m3). These high levels of PM10 were recorded throughout 68% of the period of measurement in some industrial areas (El-Kolaly). The measured data of pollutants were used for both the evaluation of environmental pollution levels and the validation of the online-integrated regional climate chemistry model "RegCM-CHEM4." Calculation of the bias between the model results and the measured data was used to evaluate the model performance in order to assess its ability in reproducing the chemical species over the area. The model was found to reproduce the seasonal cycle of the pollutants successfully, but with a large underestimation of the PM10 values. Validation of the RegCM-CHEM4 indicated that the emission inventories of mobile sources and anthropogenic activities need to be improved especially with respect to local and regional activities in order to enhance air quality simulations over the GC region.
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Affiliation(s)
| | | | - Stephane C Alfaro
- Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR CNRS 7583, Université Paris-Est Créteil and Université Paris-Diderot, Institut Pierre-Simon Laplace (IPSL), Créteil, France
| | | | - Soltan A Monem
- Biophysics Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - Mohamed M Abdul Wahab
- Astronomy and Meteorology Department, Faculty of Science, Cairo University, Cairo, Egypt
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11
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Wanjun T, Qingxiang C. Dust distribution in open-pit mines based on monitoring data and fluent simulation. ENVIRONMENTAL MONITORING AND ASSESSMENT 2018; 190:632. [PMID: 30284664 DOI: 10.1007/s10661-018-7004-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 09/26/2018] [Indexed: 05/12/2023]
Abstract
To understand the concentration and distribution of PM2.5 and PM10 in open-pit mines, a beta-ray particle monitor and some laser monitors were arranged in Haerwusu Surface Coal Mine (HSCM), Inner Mongolia, China. A fluent simulation was made to study the dust move in the pit and escape rate and time out of the pit. The main conclusions include (1) in HSCM, the concentration of PM10 changes with that of PM2.5, meeting the power function PM10 = 2.548 × PM2.50.993. The dust concentration around the working mining equipment is very high. For example, around a working drill, the PM2.5 can be up to 426 μg/m3, and around a working power shovel, the PM2.5 can be up to 352 μg/m3. (2) At the same time, the PM2.5 concentration is nearly equal throughout the pit, away from the operating equipment, with a confidence level of 95%. The mean dust concentration away from the equipment is 76.7 μg/m3 when this mining equipment is working. So, the number of monitors in the pit can be decreased without affecting the quality of dust monitoring, which means that the cost of monitoring can be cut down. (3) Base on Fluent simulation results, the average escape time of dust particles with different diameters is similar, but the maximum escape time decreases as the particle diameter increases, which means that most dust moves with the air swirl, but some smaller dust particles can hang in the pit for a longer time. Also, the escape rate decreases rapidly as the diameter of the dust increases. (4) Dust is rotated and diffused evenly in the pit under the action of the eddy current in the pit. Finally, when the dust is swirled to a higher level than that of the pit head, the dust can escape out of the pit.
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Affiliation(s)
- Tang Wanjun
- School of Mining Engineering, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China.
- State Key Laboratory of Coal Resources and Mine Safety, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China.
| | - Cai Qingxiang
- School of Mining Engineering, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China
- State Key Laboratory of Coal Resources and Mine Safety, China University of Mining and Technology, Xuzhou, 221116, Jiangsu, China
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Ahmed SO, Mazloum R, Abou-Ali H. Spatiotemporal interpolation of air pollutants in the Greater Cairo and the Delta, Egypt. ENVIRONMENTAL RESEARCH 2018; 160:27-34. [PMID: 28941801 DOI: 10.1016/j.envres.2017.09.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 08/21/2017] [Accepted: 09/09/2017] [Indexed: 06/07/2023]
Abstract
This paper analyses the spatiotemporal variability of air pollutants in Egypt using monthly averages from the air quality monitoring network from 2011 to 2015. Particulate Matters (PM10) Nitrogen Dioxide (NO2) and Sulfur Dioxide (SO2), measured by the monitoring stations network are studied. A log transformation is applied for the three pollutants to achieve normality. The sum-metric function is utilized for modelling the spatiotemporal variogram as it gave the smallest Mean Squared Error (MSE) compared to other forms namely separable, metric, and product sum models. Therefore, employing the gstat package in R together with the trans-Gaussian spatiotemporal kriging, the maps are generated for the interpolated surfaces for the monthly averages of 2015 and the corresponding standard error values. These maps will help the decision maker to understand and visualize the spatial and temporal variability of the measured pollutants and hence undertake the necessary policies and decisions. The results show that the down town area has the highest pollutants levels. As concerns the temporal dimension, the highest values are depicted during the month of February as compared to the rest of the year. Furthermore, Egypt is suffering from a serious PM10 problem for the area and period under study that extremely exceed the WHO and Egyptian guidelines.
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Affiliation(s)
- Sara Osama Ahmed
- Department of Statistics, Faculty of Economics and Political Science, Cairo University, Giza, Egypt.
| | - Reda Mazloum
- Department of Statistics, Faculty of Economics and Political Science, Cairo University, Giza, Egypt.
| | - Hala Abou-Ali
- Department of Economics, Faculty of Economics and Political Science, Cairo University, Giza, Egypt; Economic Research Forum(ERF), Egypt.
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13
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Long-Term, High-Resolution Survey of Atmospheric Aerosols over Egypt with NASA’s MODIS Data. REMOTE SENSING 2017. [DOI: 10.3390/rs9101027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Offor IF, Adie GU, Ana GREE. Review of Particulate Matter and Elemental Composition of Aerosols at Selected Locations in Nigeria from 1985-2015. J Health Pollut 2016; 6:1-18. [PMID: 30524781 PMCID: PMC6236551 DOI: 10.5696/2156-9614-6-10.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND Over the past 30 years, various studies in Nigeria have monitored atmospheric particulate matter loads and elemental composition of ambient air around diverse receptor sites. OBJECTIVES A comparative discussion of the different sampling techniques, pre-treatment and analytical methods employed between 1985 and 2015. METHODS Air pollution indices from studies covered in this review were compared to relevant guideline standards such as the World Health Organization (WHO) 24-hr guideline and the United States Environmental Protection Agency (USEPA)'s National Ambient Air Quality Standard (NAAQS) daily permissible limits for fine particles of less than 2.5 micrometers in diameter (PM2.5) and coarse dust particles with a diameter of 10 micrometers (PM10) in ambient air. In addition, the sources of data for the average concentrations for PM2.5, PM10 and related metallic elements during 1985-2015 were assessed. Attempts were also made to compare varied particulate matter loads of atmospheric micro-environments in Nigeria with comparable micro-environments in selected cities around the world. DISCUSSION Results showed that PM2.5 concentration ranged from 5-248 μg/m3, while PM10 concentration ranged from 18-926 μg/m3, revealing that about 50% of the particulate matter loads in Nigeria exceeded both the WHO (25 μg/m3, 50 μg/m3) and NAAQS (35 μg/m3, 150 μg/m3) guideline limits for PM2.5 and PM10 respectively. PM2.5/PM10 ratios for the selected studies fall below the WHO guideline (0.5-0.8), suggesting that Nigerian aerosols are mainly made up of coarse, rather than fine particles. In addition, the order of the average highest concentrations of metallic elements for PM2.5 were magnesium (Mg) > strontium (Sr) > potassium (K) > zinc (Zn) > iron (Fe) > sodium (Na) > aluminium (Al) > chlorine (Cl) > lead (Pb) > silicon (Si), while those of PM10 were Sr > Zn > Fe > Mg > calcium (Ca) >Na > Pb > manganese (Mn) > K > Al. CONCLUSIONS Seasonal variation of particulate matter loads revealed higher concentrations during the dry season than during the rainy season. In addition, particulate matter loads in rural areas were generally lower than in urban areas. Wind-blown dust from the Sahara Desert is the major contributor to particulate matter loads in northern zones of the country, while sea spray and crustal matter are the highest contributors to particulate matter loads in southern zones.
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Affiliation(s)
- Ifeanyi F. Offor
- Department of Chemistry, Faculty of Science, Federal University, Ndufu Alike, Ikwo, Nigeria
| | - Gilbert U. Adie
- Department of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria
| | - Godson REE Ana
- Department of Environmental Health, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Nigeria
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Ezeh G, Obioh I, Asubiojo O, Chiari M, Nava S, Calzolai G, Lucarelli F, Nuviadenu C. The complementarity of PIXE and PIGE techniques: A case study of size segregated airborne particulates collected from a Nigeria city. Appl Radiat Isot 2015; 103:82-92. [DOI: 10.1016/j.apradiso.2015.05.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Revised: 04/15/2015] [Accepted: 05/23/2015] [Indexed: 10/23/2022]
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16
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Dickinson KL, Kanyomse E, Piedrahita R, Coffey E, Rivera IJ, Adoctor J, Alirigia R, Muvandimwe D, Dove M, Dukic V, Hayden MH, Diaz-Sanchez D, Abisiba AV, Anaseba D, Hagar Y, Masson N, Monaghan A, Titiati A, Steinhoff DF, Hsu YY, Kaspar R, Brooks B, Hodgson A, Hannigan M, Oduro AR, Wiedinmyer C. Research on Emissions, Air quality, Climate, and Cooking Technologies in Northern Ghana (REACCTING): study rationale and protocol. BMC Public Health 2015; 15:126. [PMID: 25885780 PMCID: PMC4336492 DOI: 10.1186/s12889-015-1414-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 01/14/2015] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Cooking over open fires using solid fuels is both common practice throughout much of the world and widely recognized to contribute to human health, environmental, and social problems. The public health burden of household air pollution includes an estimated four million premature deaths each year. To be effective and generate useful insight into potential solutions, cookstove intervention studies must select cooking technologies that are appropriate for local socioeconomic conditions and cooking culture, and include interdisciplinary measurement strategies along a continuum of outcomes. METHODS/DESIGN REACCTING (Research on Emissions, Air quality, Climate, and Cooking Technologies in Northern Ghana) is an ongoing interdisciplinary randomized cookstove intervention study in the Kassena-Nankana District of Northern Ghana. The study tests two types of biomass burning stoves that have the potential to meet local cooking needs and represent different "rungs" in the cookstove technology ladder: a locally-made low-tech rocket stove and the imported, highly efficient Philips gasifier stove. Intervention households were randomized into four different groups, three of which received different combinations of two improved stoves, while the fourth group serves as a control for the duration of the study. Diverse measurements assess different points along the causal chain linking the intervention to final outcomes of interest. We assess stove use and cooking behavior, cooking emissions, household air pollution and personal exposure, health burden, and local to regional air quality. Integrated analysis and modeling will tackle a range of interdisciplinary science questions, including examining ambient exposures among the regional population, assessing how those exposures might change with different technologies and behaviors, and estimating the comparative impact of local behavior and technological changes versus regional climate variability and change on local air quality and health outcomes. DISCUSSION REACCTING is well-poised to generate useful data on the impact of a cookstove intervention on a wide range of outcomes. By comparing different technologies side by side and employing an interdisciplinary approach to study this issue from multiple perspectives, this study may help to inform future efforts to improve health and quality of life for populations currently relying on open fires for their cooking needs.
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Affiliation(s)
- Katherine L Dickinson
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Ernest Kanyomse
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | | | - Evan Coffey
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Isaac J Rivera
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
| | - James Adoctor
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | - Rex Alirigia
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | | | - MacKenzie Dove
- Relief International, 5455 Wilshire Blvd., Suite 1280, Los Angeles, CA, 90036, USA.
| | - Vanja Dukic
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Mary H Hayden
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
| | - David Diaz-Sanchez
- EPA Human Studies Facility, 104 Mason Farm Road, Chapel Hill, NC, 27514-4512, USA.
| | - Adoctor Victor Abisiba
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | - Dominic Anaseba
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
| | - Yolanda Hagar
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Nicholas Masson
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Andrew Monaghan
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
| | - Atsu Titiati
- Relief International, 5455 Wilshire Blvd., Suite 1280, Los Angeles, CA, 90036, USA.
| | - Daniel F Steinhoff
- National Center for Atmospheric Research, PO Box 3000, Boulder, CO, 80307, USA.
| | - Yueh-Ya Hsu
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Rachael Kaspar
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Bre'Anna Brooks
- University of Colorado - Boulder, Boulder, CO, 80309-0427, USA.
| | - Abraham Hodgson
- Ghana Health Service, Private Mail Bag, Ministries, Accra, Ghana.
| | | | - Abraham Rexford Oduro
- Navrongo Health Research Centre, Behind Navrongo War Memorial Hospital, Navrongo, Ghana.
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Kholdebarin A, Biati A, Moattar F, Shariat SM. Outdoor PM₁₀ source apportionment in metropolitan cities--a case study. ENVIRONMENTAL MONITORING AND ASSESSMENT 2015; 187:49. [PMID: 25638060 DOI: 10.1007/s10661-015-4294-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Accepted: 01/11/2015] [Indexed: 06/04/2023]
Abstract
This study was carried out to specify contribution of different sources in PM10 emission in Tehran City using chemical mass balance method. This is the first time that this method is used in Iran. To this end, the metallic elements including V, Ni, As, Pb, Cd, Hg, Mn, Al, Ca, K, Na, Fe, Zn, Sc, and S were sampled on the filters of high-volume sampler installed at four stations in Tehran. Afterward, highly sensitive inductively coupled plasma (ICP-M90; model aurora-Elit) was used to determine concentration of the elements precipitated on the filters. The obtained results were then compared with standard values. According to the results, the concentration of Cd (16.8 ng/m(3)) was higher than the standard level of 5 ng/m(3) at District 16 on November 14th 2012 which is almost three times the permissible limit. None of the elements Pb, Mn, V, and Hg exceeded the permissible limits except for Ni at District 16. Subsequently, the enrichment factor of the elements was calculated to indicate that elements of anthropogenic origins (Zn, S, Ni, and Hg) are highly enriched with respect to crustal composition (Na, Fe, and Ca). Exceedance factor were calculated for elements of each site to show that all study sites were in low-pollution category. Afterward, the contribution of different pollution sources of road dust, vehicles, and industries in emission of outdoor PM10 was investigated through chemical mass balance (CMB) method. According to which, the highest contribution comes from road dust with a share of 95.4 % of the total outdoor PM10 emission in Tehran mainly originated from the wear and friction of car tires with asphalt pavement. High calcium concentration in all districts of the city confirms the claim. Furthermore, transportation, with a significant difference, has a contribution of 4.05 % of total outdoor PM10 released while industries share very little about 0.4 %. In overall, the quality of road pavement could be a determining factor in releasing considerable amount of outdoor PM10 in urban areas.
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Affiliation(s)
- Atefeh Kholdebarin
- Department of Natural Resources Engineering-Environment, Graduate Faculty of Environment and Energy, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran
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Shaltout AA, Boman J, Welz B, Castilho IN, Al Ashkar EA, Gaita S. Method development for the determination of Cd, Cu, Ni and Pb in PM2.5 particles sampled in industrial and urban areas of Greater Cairo, Egypt, using high-resolution continuum source graphite furnace atomic absorption spectrometry. Microchem J 2014. [DOI: 10.1016/j.microc.2013.10.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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El-Mubarak AH, Rushdi AI, Al-Mutlaq KF, Bazeyad AY, Simonich SLM, Simoneit BRT. Identification and source apportionment of polycyclic aromatic hydrocarbons in ambient air particulate matter of Riyadh, Saudi Arabia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:558-67. [PMID: 23812790 DOI: 10.1007/s11356-013-1946-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Accepted: 06/17/2013] [Indexed: 05/23/2023]
Abstract
In an effort to assess the occurrence and sources of polycyclic aromatic hydrocarbons (PAHs) in the ambient air of Riyadh, Saudi Arabia, PM10 samples were collected during December 2010. Diagnostic PAH concentration ratios were used as a tool to identify and characterize the PAH sources. The results reflect high PM10 and PAH concentrations (particulate matter (PM) = 270-1,270 μg/m(3)). The corresponding average PAH concentrations were in the range of 18 ± 8 to 1,003 ± 597 ng/m(3) and the total concentrations (total PAHs (TPAHs) of 17 compounds) varied from 1,383 to 13,470 ng/m(3) with an average of 5,871 ± 2,830 ng/m(3). The detection and quantification limits were 1-3 and 1-10 ng/ml, respectively, with a recovery range of 42-80%. The ratio of the sum of the concentrations of the nine major non-alkylated compounds to the total (CPAHs/TPAHs) was 0.87 ± 0.10, and other ratios were determined to apportion the PM sources. The PAHs found are characteristic for emissions from traffic with diesel being a predominant source.
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Affiliation(s)
- Aarif H El-Mubarak
- Department of Plant Protection and Chair of Green Energy Research, College of Food and Agriculture Sciences, King Saud University, P. O. Box 2460, Riyadh, 11451, Saudi Arabia,
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Argyropoulos G, Manoli E, Kouras A, Samara C. Concentrations and source apportionment of PM10 and associated major and trace elements in the Rhodes Island, Greece. THE SCIENCE OF THE TOTAL ENVIRONMENT 2012; 432:12-22. [PMID: 22705902 DOI: 10.1016/j.scitotenv.2012.05.076] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Revised: 04/25/2012] [Accepted: 05/23/2012] [Indexed: 06/01/2023]
Abstract
Ambient concentrations of PM(10) and associated major and trace elements were measured over the cold and the warm season of 2007 at two sites located in the Rhodes Island (Greece), in Eastern Mediterranean, aimed at source apportionment by Chemical Mass Balance (CMB) receptor modeling. Source chemical profiles, necessary in CMB modeling, were obtained for a variety of emission sources that could possibly affect the study area, including sea spray, geological material, soot emissions from the nearby oil-fuelled thermal power plant, and other anthropogenic activities, such as vehicular traffic, residential oil combustion, wood burning, and uncontrolled open-air burning of agricultural biomass and municipal waste. Source apportionment of PM(10) and elemental components was carried out by employing an advanced CMB version, the Robotic Chemical Mass Balance model (RCMB). Vehicular emissions were found to be major PM(10) contributor accounting, on average, for 36.8% and 31.7% during the cold period, and for 40.9% and 39.2% in the warm period at the two sites, respectively. The second largest source of ambient PM(10), with minor seasonal variation, was secondary sulfates (mainly ammonium and calcium sulfates), with total average contribution around 16.5% and 18% at the two sites. Soil dust was also a remarkable source contributing around 22% in the warm period, whereas only around 10% in the cold season. Soot emitted from the thermal power plant was found to be negligible contributor to ambient PM(10) (<1%), however it appeared to appreciably contribute to the ambient V and Ni (11.3% and 5.1%, respectively) at one of the sites during the warm period, when electricity production is intensified. Trajectory analysis did not indicate any transport of Sahara dust; on the contrary, long range transport of soil dust from arid continental regions of Minor Asia and of biomass burning aerosol from the countries surrounding the Black Sea was considered possible.
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Affiliation(s)
- Georgios Argyropoulos
- Environmental Pollution Control Laboratory, Department of Chemistry, Aristotle University of Thessaloniki, G-541 24 Thessaloniki, Greece
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Khodeir M, Shamy M, Alghamdi M, Zhong M, Sun H, Costa M, Chen LC, Maciejczyk P. Source Apportionment and Elemental Composition of PM2.5 and PM10 in Jeddah City, Saudi Arabia. ATMOSPHERIC POLLUTION RESEARCH 2012; 3:331-340. [PMID: 24634602 PMCID: PMC3951168 DOI: 10.5094/apr.2012.037] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
This paper presents the first comprehensive investigation of PM2.5 and PM10 composition and sources in Saudi Arabia. We conducted a multi-week multiple sites sampling campaign in Jeddah between June and September, 2011, and analyzed samples by XRF. The overall mean mass concentration was 28.4 ± 25.4 μg/m3 for PM2.5 and 87.3 ± 47.3 μg/m3 for PM10, with significant temporal and spatial variability. The average ratio of PM2.5/PM10 was 0.33. Chemical composition data were modeled using factor analysis with varimax orthogonal rotation to determine five and four particle source categories contributing significant amount of for PM2.5 and PM10 mass, respectively. In both PM2.5 and PM10 sources were (1) heavy oil combustion characterized by high Ni and V; (2) resuspended soil characterized by high concentrations of Ca, Fe, Al, and Si; and (3) marine aerosol. The two other sources in PM2.5 were (4) Cu/Zn source; (5) traffic source identified by presence of Pb, Br, and Se; while in PM10 it was a mixed industrial source. To estimate the mass contributions of each individual source category, the CAPs mass concentration was regressed against the factor scores. Cumulatively, resuspended soil and oil combustion contributed 77 and 82% mass of PM2.5 and PM10, respectively.
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Affiliation(s)
- Mamdouh Khodeir
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah Saudi Arabia
| | - Magdy Shamy
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah Saudi Arabia
| | - Mansour Alghamdi
- Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah Saudi Arabia
| | - Mianhua Zhong
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
| | - Hong Sun
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
| | - Max Costa
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
| | - Lung-Chi Chen
- Department of Environmental Medicine, NYU School of Medicine, Tuxedo, NY, USA
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Marey HS, Gille JC, El-Askary HM, Shalaby EA, El-Raey ME. Study of the formation of the “black cloud” and its dynamics over Cairo, Egypt, using MODIS and MISR sensors. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010jd014384] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Prasad AK, El-Askary H, Kafatos M. Implications of high altitude desert dust transport from Western Sahara to Nile Delta during biomass burning season. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2010; 158:3385-3391. [PMID: 20797813 DOI: 10.1016/j.envpol.2010.07.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 07/20/2010] [Accepted: 07/24/2010] [Indexed: 05/29/2023]
Abstract
The air over major cities and rural regions of the Nile Delta is highly polluted during autumn which is the biomass burning season, locally known as black cloud. Previous studies have attributed the increased pollution levels during the black cloud season to the biomass or open burning of agricultural waste, vehicular, industrial emissions, and secondary aerosols. However, new multi-sensor observations (column and vertical profiles) from satellites, dust transport models and associated meteorology present a different picture of the autumn pollution. Here we show, for the first time, the evidence of long range transport of dust at high altitude (2.5-6 km) from Western Sahara and its deposition over the Nile Delta region unlike current Models. The desert dust is found to be a major contributor to the local air quality which was previously considered to be due to pollution from biomass burning enhanced by the dominant northerly winds coming from Europe.
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Saliba NA, Massoud R. A Comparative Review of PM Levels, Sources, and Their Likely Fates in the Eastern Mediterranean Region. URBAN AIRBORNE PARTICULATE MATTER 2010. [DOI: 10.1007/978-3-642-12278-1_1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Safar ZS, Labib MW. Assessment of particulate matter and lead levels in the Greater Cairo area for the period 1998–2007. J Adv Res 2010. [DOI: 10.1016/j.jare.2010.02.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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26
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Vega E, Lowenthal D, Ruiz H, Reyes E, Watson JG, Chow JC, Viana M, Querol X, Alastuey A. Fine particle receptor modeling in the atmosphere of Mexico City. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2009; 59:1417-1428. [PMID: 20066907 DOI: 10.3155/1047-3289.59.12.1417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Source apportionment analyses were carried out by means of receptor modeling techniques to determine the contribution of major fine particulate matter (PM2.5) sources found at six sites in Mexico City. Thirty-six source profiles were determined within Mexico City to establish the fingerprints of particulate matter sources. Additionally, the profiles under the same source category were averaged using cluster analysis and the fingerprints of 10 sources were included. Before application of the chemical mass balance (CMB), several tests were carried out to determine the best combination of source profiles and species used for the fitting. CMB results showed significant spatial variations in source contributions among the six sites that are influenced by local soil types and land use. On average, 24-hr PM2.5 concentrations were dominated by mobile source emissions (45%), followed by secondary inorganic aerosols (16%) and geological material (17%). Industrial emissions representing oil combustion and incineration contributed less than 5%, and their contribution was higher at the industrial areas of Tlalnepantla (11%) and Xalostoc (8%). Other sources such as cooking, biomass burning, and oil fuel combustion were identified at lower levels. A second receptor model (principal component analysis, [PCA]) was subsequently applied to three of the monitoring sites for comparison purposes. Although differences were obtained between source contributions, results evidence the advantages of the combined use of different receptor modeling techniques for source apportionment, given the complementary nature of their results. Further research is needed in this direction to reach a better agreement between the estimated source contributions to the particulate matter mass.
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Affiliation(s)
- Elizabeth Vega
- Instituto Mexicano del Petróleo, Eje Central Lázaro Cárdenas, Delagación Gustavo A. Madero, México.
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Abu-Allaban M, Lowenthal DH, Gertler AW, Labib M. Sources of volatile organic compounds in Cairo's ambient air. ENVIRONMENTAL MONITORING AND ASSESSMENT 2009; 157:179-189. [PMID: 18843549 DOI: 10.1007/s10661-008-0526-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2006] [Accepted: 09/11/2008] [Indexed: 05/26/2023]
Abstract
The greater Cairo area suffers from extreme levels of gas and particulate phase air pollutants. In order to reduce the levels of ambient pollution, the USAID and the Egyptian Environmental Affairs Agency (EEAA) have supported the Cairo Air Improvement Project (CAIP). As part of this project, two intensive ambient monitoring studies were carried out during the period of February 22 to March 4 and October 27 to November 27, 1999. Volatile organic compounds (VOCs) were measured on a 24-h basis at six sampling stations during each of the intensive periods. During the February/March study, samples were collected daily, while in the October/November study samples were collected every other day. The six intensive measurement sites represented background levels, mobile source impacts, industrial impacts, and residential exposure. High levels of NMHC were observed at all locations. NMHC concentrations ranged from 365 ppb C at Helwan to 1,848 ppb C at El Qualaly during winter, 1999 and from 461 ppb C at Kaha to 2,037 ppb C at El Qualaly during fall, 1999. El Qualaly, the site chosen to represent mobile emissions, displayed the highest average NMHC concentrations of any site, by a factor of 2 or more. The highest mobile source contributions were estimated at this site. The major contributors to NMHC at all sites were mobile emissions, lead smelting, and compressed natural gas.
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Affiliation(s)
- M Abu-Allaban
- Department of Water Management & Environment, the Hashemite University, Zarqa, Jordan
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Engelbrecht JP, McDonald EV, Gillies JA, Jayanty RKM, Casuccio G, Gertler AW. Characterizing Mineral Dusts and Other Aerosols from the Middle East—Part 1: Ambient Sampling. Inhal Toxicol 2009; 21:297-326. [DOI: 10.1080/08958370802464273] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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