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Aguilera A, Gallegos Á, Luna V, Hernández L, Gutiérrez M, Amaro D, Goguitchaichvili A, Quintana P, Bautista F. Higher heavy metal contamination indoors than outdoors during COVID-19 in Mexico City. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:16696-16709. [PMID: 38326683 PMCID: PMC10894124 DOI: 10.1007/s11356-024-32085-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 01/16/2024] [Indexed: 02/09/2024]
Abstract
People spend most of their time indoors, especially during the coronavirus disease. Prolonged exposure to heavy metal-contaminated dust can be harmful to human health. The objectives of this study were to identify the contamination level in outdoor and indoor dust, compare contamination in both environments, and assess the human health risk. Two-hundred thirty-nine samples of dust were taken by Mexico City citizens in 38 homes on the weekends of May 2020. Heavy metal concentrations were measured through XRF. The contamination level was set using the contamination factor with a local and global background value, mixed linear models were used to identify indoor and outdoor differences, and USEPA human health risk methodology was used. Pb, Zn, and Cu had the highest contamination levels, followed by Sr and Mn, using both the local and global background values. The Pb, Zn, and Cu contamination was greater indoors, while higher Mn, Sr, and Fe were detected outdoors. According to the outdoor/indoor ratios, the main sources of Ca, Pb, Zn, and Cu must be indoors, while the main sources of Fe, Mn, Sr, Y, and Ti are outdoors. A human health risk was not detected, as the hazard index was lower than one. However, ailments can be developed due to exposure to Pb, Mn, and Fe in children (hazard index > 0.1). A higher risk due to Pb exposition was found indoors. Indoor environments in Mexico City were more contaminated by heavy metals and represented a higher risk to human health than outdoors during the pandemic isolation.
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Affiliation(s)
- Anahí Aguilera
- Centro de Investigaciones en Geografía Ambiental, Laboratorio Universitario de Geofísica Ambiental, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de La Huerta, C.P, 58190, Morelia, Michoacan, Mexico
| | - Ángeles Gallegos
- Centro de Investigaciones en Geografía Ambiental, Laboratorio Universitario de Geofísica Ambiental, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de La Huerta, C.P, 58190, Morelia, Michoacan, Mexico
| | - Víctor Luna
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - Luciano Hernández
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - Margarita Gutiérrez
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - Daniel Amaro
- Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico
| | - Avto Goguitchaichvili
- Instituto de Geofísica, Laboratorio Universitario de Geofísica Ambiental, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de La Huerta, C.P, 58190, Morelia, Michoacan, Mexico
| | - Patricia Quintana
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados. Carr. Mérida - Progreso, Loma Bonita, 97205, Merida, Yucatan, Mexico
| | - Francisco Bautista
- Centro de Investigaciones en Geografía Ambiental, Laboratorio Universitario de Geofísica Ambiental, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de La Huerta, C.P, 58190, Morelia, Michoacan, Mexico.
- Colegio de Postgraduados, Periférico Carlos A. Molina S/N Km. 3, Periférico Carlos A Molina SN, Ranchería Río Seco y Montaña, 86500, Heroica Cardenas, Tabasco, Mexico.
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Kao CS, Wang YL, Jiang CB, Tai PJ, Chen YH, Chao HJ, Lo YC, Hseu ZY, Hsi HC, Chien LC. Assessment of sources and health risks of heavy metals in metropolitan household dust among preschool children: The LEAPP-HIT study. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 352:120015. [PMID: 38194873 DOI: 10.1016/j.jenvman.2024.120015] [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: 11/16/2023] [Revised: 12/27/2023] [Accepted: 01/01/2024] [Indexed: 01/11/2024]
Abstract
The most common construction material used in Taiwan is concrete, potentially contaminated by geologic heavy metals (HMs). Younger children spend much time indoors, increasing HM exposure risks from household dust owing to their behaviors. We evaluated arsenic (As), cadmium (Cd), and lead (Pb) concentrations in fingernails among 280 preschoolers between 2017 and 2023. We also analyzed HM concentrations, including As, Cd, Pb, chromium (Cr), nickel (Ni), copper (Cu), zinc (Zn), iron (Fe), and manganese (Mn), in 90 household dust and 50 road dust samples from a residential area where children lived between 2019 and 2021 to deepen the understanding of sources and health risks of exposure to HMs from household dust. The average As, Cd, and Pb concentrations in fingernails were 0.12 ± 0.06, 0.05 ± 0.05, and 0.95 ± 0.77 μg/g, respectively. Soil parent materials, indoor construction activities, vehicle emissions, and mixed indoor combustion were the pollution sources of HMs in household dust. Higher Cr and Pb levels in household dust may pose non-carcinogenic risks to preschoolers. Addressing indoor construction and soil parent materials sources is vital for children's health. The finding of the present survey can be used for indoor environmental management to reduce the risks of HM exposure and avoid potential adverse health effects for younger children.
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Affiliation(s)
- Chi-Sian Kao
- School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Ying-Lin Wang
- School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan
| | - Chuen-Bin Jiang
- Department of Pediatric Gastroenterology, Hepatology and Nutrition, MacKay Children's Hospital, Taipei, Taiwan; Department of Medicine, MacKay Medical College, SanZhi District, New Taipei City, Taiwan
| | - Pei-Ju Tai
- School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Yi-Hua Chen
- School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan; Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
| | - Hsing-Jasmine Chao
- School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan; Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
| | - Yu-Chun Lo
- Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan; Ph.D. Program in Medical Neuroscience, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Zeng-Yei Hseu
- Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan
| | - Hsing-Cheng Hsi
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan.
| | - Ling-Chu Chien
- School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan; Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan; Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan.
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Khajooee N, Modabberi S, Khoshmanesh Zadeh B, Razavian F, Gayà-Caro N, Sierra J, Rovira J. Contamination level, spatial distribution, and sources of potentially toxic elements in indoor settled household dusts in Tehran, Iran. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:56. [PMID: 38270787 DOI: 10.1007/s10653-023-01838-8] [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: 08/19/2023] [Accepted: 12/15/2023] [Indexed: 01/26/2024]
Abstract
Tehran, the capital city of Iran, has been facing air pollution for several decades due to rapid urbanization, population growth, improper vehicle use, and the low quality of fuels. In this study, 31 indoor dust samples were collected passively from residential and commercial buildings located in the central and densely populated districts of the city. These samples were analyzed after preparation to measure the concentration of elements (As, Be, Cd, Co, Cr, Cu, Fe, Hg, Mn, Mo, Ni, Pb, Se, Sr, V, Zn). Statistical data analyses were employed to compare their relationship across various uses, variations, and for source identification. Geochemical indices of contamination factor (CF) and pollution load index (PLI) were utilized to evaluate the degree of contamination. The mean concentrations of Zn, Cu, and Pb (938, 206, and 176 µg g-1, respectively) are 6, 5, and 3 times higher than their mean values in worldwide urban soils. Additionally, Cd, Mo, and Ni showed concentrations about 1.5 times higher, while As, Co, Cr, Mn, and Sr fell within the range of reference soils. Be, V, and Sb displayed remarkably lower mean values. Building use did not significantly influence element levels in indoor deposited dust except for Pb and Zn. A comparison of indoor concentrations with previously published data for outdoor dusts revealed higher enrichments of Mo, Cu, Pb, and Ni, while As, Cd, and Zn showed lower enrichments in street dust samples. The order of CF values indicated Hg > Zn > Cd > Pb > Cu > As > Ni > Cr > Co > V. For Hg, Zn, Pb, Cd, and Cu, all or almost all samples exhibited very high contamination. PLI values were consistently higher than 1, indicating contamination in all samples. Multivariate statistical analysis and Tehran's specific geological location suggested that mafic-intermediate volcanic rocks are primary sources for Cr, Cu, Fe, and Ni (PC1). As, Pb, and V (PC2) were attributed to fossil fuel combustion in vehicles and residential buildings. Pb is a legacy metal remaining from the use of leaded gasoline, which was phased out in the 1990s. Zn (PC3) is derived from vehicle tires.
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Affiliation(s)
- Neda Khajooee
- Department of Environmental Science and Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Soroush Modabberi
- School of Geology, College of Science, University of Tehran, Tehran, Iran.
| | - Behnoush Khoshmanesh Zadeh
- Department of Environmental Science and Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Fatemeh Razavian
- Department of Environmental Science and Engineering, West Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Nuria Gayà-Caro
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201, Reus, Catalonia, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), 43204, Reus, Catalonia, Spain
- Center of Environmental, Food and Toxicological Technology - TecnATox, Universitat Rovira i Virgili, Tarragona, Spain
| | - Jordi Sierra
- Faculty of Pharmacy, Universitat de Barcelona, Joan XXIII s/n Avenue, 08028, Barcelona, Catalonia, Spain
- Center of Environmental, Food and Toxicological Technology - TecnATox, Universitat Rovira i Virgili, Tarragona, Spain
| | - Joaquim Rovira
- Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201, Reus, Catalonia, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV), 43204, Reus, Catalonia, Spain
- Environmental Engineering Laboratory, Departament d'Enginyeria Química, Universitat Rovira i Virgili, Paisos Catalans Avenue 26, 43007, Tarragona, Catalonia, Spain
- Center of Environmental, Food and Toxicological Technology - TecnATox, Universitat Rovira i Virgili, Tarragona, Spain
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Somsunun K, Prapamontol T, Kuanpan T, Santijitpakdee T, Kohsuwan K, Jeytawan N, Thongjan N. Health Risk Assessment of Heavy Metals in Indoor Household Dust in Urban and Rural Areas of Chiang Mai and Lamphun Provinces, Thailand. TOXICS 2023; 11:1018. [PMID: 38133419 PMCID: PMC10747779 DOI: 10.3390/toxics11121018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/25/2023] [Accepted: 12/02/2023] [Indexed: 12/23/2023]
Abstract
Indoor exposure to heavy metals poses human health risks worldwide, but study reports from Thailand are still limited, particularly in rural and urban areas. We measured the heavy metals in a hundred indoor household dust samples collected from urban and rural areas in Chiang Mai and Lamphun provinces and found a significantly higher concentration of As in rural areas and Cd in urban areas with industrial activities. The source identification of the heavy metals showed significant enrichment from traffic emissions, paint, smoking, and mixed sources with natural soil. From health risk assessment models, children were more vulnerable to noncarcinogenic risks (HI = 1.45), primarily via ingestion (HQ = 1.39). Lifetime cancer risks (LCRs) due to heavy metal exposure were found in adults (LCR = 5.31 × 10-4) and children (LCR = 9.05 × 10-4). The cancer risks from As were higher in rural areas via ingestion, while Cr and Ni were higher in urban areas via inhalation and ingestion, respectively. This study estimated that approximately 5 out of 10,000 adults and 9 out of 10,000 children among the population may develop cancer in their lifetime from exposure to indoor heavy metals in this region.
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Affiliation(s)
- Kawinwut Somsunun
- Environment and Health Research Group, Research Institute for Health Sciences (RIHES), Chiang Mai University, Chiang Mai 50200, Thailand; (K.S.); (T.K.); (T.S.); (K.K.); (N.J.); (N.T.)
- PhD Degree Program in Environmental Science, Environmental Science Research Center, Faculty of Science, Chiang University, Chiang Mai 50200, Thailand
| | - Tippawan Prapamontol
- Environment and Health Research Group, Research Institute for Health Sciences (RIHES), Chiang Mai University, Chiang Mai 50200, Thailand; (K.S.); (T.K.); (T.S.); (K.K.); (N.J.); (N.T.)
| | - Todsabhorn Kuanpan
- Environment and Health Research Group, Research Institute for Health Sciences (RIHES), Chiang Mai University, Chiang Mai 50200, Thailand; (K.S.); (T.K.); (T.S.); (K.K.); (N.J.); (N.T.)
| | - Teetawat Santijitpakdee
- Environment and Health Research Group, Research Institute for Health Sciences (RIHES), Chiang Mai University, Chiang Mai 50200, Thailand; (K.S.); (T.K.); (T.S.); (K.K.); (N.J.); (N.T.)
| | - Kanyapak Kohsuwan
- Environment and Health Research Group, Research Institute for Health Sciences (RIHES), Chiang Mai University, Chiang Mai 50200, Thailand; (K.S.); (T.K.); (T.S.); (K.K.); (N.J.); (N.T.)
| | - Natwasan Jeytawan
- Environment and Health Research Group, Research Institute for Health Sciences (RIHES), Chiang Mai University, Chiang Mai 50200, Thailand; (K.S.); (T.K.); (T.S.); (K.K.); (N.J.); (N.T.)
| | - Nathaporn Thongjan
- Environment and Health Research Group, Research Institute for Health Sciences (RIHES), Chiang Mai University, Chiang Mai 50200, Thailand; (K.S.); (T.K.); (T.S.); (K.K.); (N.J.); (N.T.)
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Du Z, Tian Z, Yin Y, Wei J, Mu Y, Cai J, Song Z, Cen K. Bioavailability-based risk assessment of various heavy metals via multi-exposure routes for children and teenagers in Beijing, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:114985-115002. [PMID: 37878177 DOI: 10.1007/s11356-023-30436-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/09/2023] [Indexed: 10/26/2023]
Abstract
Assessing the health risks of sensitive population, such as children and teenagers, through multiple exposure routes (MERs) such as ingestion, inhalation, and dermal contact is critical for policy creation that protects or reduces exposure to pollutants for all populations. Heavy metal (HM) contents in food and environmental media in Beijing, capital of China, were collected. Furthermore, on the basis of considering the bioavailability of HMs, we evaluated the multiple environmental routes and health risks to HMs in children and teenagers of eight age groups (2-<3, 3-<4, 4-<5, 5-<6, 6-<9, 9-<12, 12-<15, and 15-<18) in Beijing, China by Monte Carlo simulation approach. The main findings are as follows: lead exposure in children aged 2-<3 years exceeds the exposure dose (0.3 μg·kg-1·d-1) of 0.5 point reduction in intelligence quotient. Moreover, children aged 2-<3 and 6-<9 years have relatively high non-carcinogenic risk (NCR) of 1.32 and 1.30, respectively. The carcinogenic risk (CR) for children aged 6-<9 and 9-<12 years is 2.73×10-6 and 2.39×10-6, respectively. Specifically, the contributions of oral ingestion, dermal contact, and inhalation to the NCR were 69.5%, 18.9%, and 11.6%, respectively. Moreover, the combined NCR contributions of copper, cadmium, mercury, and arsenic (As) were about 69.4%. The contributions of the above three routes to the CR were 93.4%, 4.1%, and 2.5%, in that order, with the largest CR contribution of As being about 92.0%. This study can provide new ideas for accurately assessing the exposure and health risks of HMs in the population, and we believe that it is necessary to update the national standards for food and soil based on the bioavailability of HMs.
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Affiliation(s)
- Zhongwen Du
- Baoding University of Technology, Baoding, 071000, China
| | - Zuguang Tian
- Baoding Productivity Promotion Center, Baoding, 071000, China
| | - Yelan Yin
- No. 4 Drilling Engineering Branch Company, CNPC Bohai Drilling Engineering Company Limited, Hejian, 062400, Hebei, China
| | - Junxiao Wei
- School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, 524088, China.
| | - Yue Mu
- Chongqing Key Laboratory of Agricultural Resources and Environment, College of Resources and Environment, Southwest University, Chongqing, 400715, China
| | - Jianjun Cai
- School of Architecture and Traffic, Guilin University of Electronic Technology, Guilin, 541004, China
| | - Zefeng Song
- Institute of Resources and Environmental Engineering, Hebei GEO University, Shijiazhuang, 050031, China
| | - Kuang Cen
- School of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing, 100083, China
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Chen Y, Hu Z, Bai H, Shen W. Variation in Road Dust Heavy Metal Concentration, Pollution, and Health Risk with Distance from the Factories in a City-Industry Integration Area, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192114562. [PMID: 36361440 PMCID: PMC9656356 DOI: 10.3390/ijerph192114562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 05/23/2023]
Abstract
Road dust samples around three typical factories, F1, F2, and F3, in the National Zhengzhou Economic and Technology Development Zone (ZETZ), China, were collected to study the variation in heavy metal concentration (As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn), pollution, and health risk with distance from the factories. The results indicated that the concentrations of all the elements near F1 were higher than near both F2 and F3. Apart from Co, Mn, and Cu in some dust samples, all the element concentrations were higher than the corresponding background values (BCs), to varying degrees. The spatial distributions of the heavy metals surrounding the factories followed the normal distribution. The peak values of element concentrations occurred at 300~400 m away from the factories, except for Hg, which continued increasing more than 500 m away from the factories. The fluctuation curves of the pollution load index value calculated according to the BCs for F1, F2, and F3 all had two peaks, a "small peak" and a "large peak", appearing at about 30 m and 300 m, respectively. For the hazard index and the total carcinogenic risk, the peak values all appeared at 400 m, with the curves following the normal distribution. Exposure to road dust containing non-carcinogenic and carcinogenic elements around F1 was greater than around F2 or F3. In conclusion, our results provide a reference for pursuing effective prevention of dust heavy metal pollution around modern manufacturing factories.
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Affiliation(s)
- Yinan Chen
- Key Research Institute of Yellow River Civilization and Sustainable Development & Collaborative Innovation Center on Yellow River Civilization Jointly Built by Henan Province and Ministry of Education, Henan University, Kaifeng 475001, China
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450018, China
| | - Zhiqiang Hu
- Key Research Institute of Yellow River Civilization and Sustainable Development & Collaborative Innovation Center on Yellow River Civilization Jointly Built by Henan Province and Ministry of Education, Henan University, Kaifeng 475001, China
| | - He Bai
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Wei Shen
- The College of Environment and Planning, Henan University, Kaifeng 475001, China
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Gad A, Saleh A, Farhat HI, Dawood YH, Abd El Bakey SM. Spatial Distribution, Contamination Levels, and Health Risk Assessment of Potentially Toxic Elements in Household Dust in Cairo City, Egypt. TOXICS 2022; 10:toxics10080466. [PMID: 36006146 PMCID: PMC9414935 DOI: 10.3390/toxics10080466] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/07/2022] [Accepted: 08/09/2022] [Indexed: 05/17/2023]
Abstract
Urban areas’ pollution, which is owing to rapid urbanization and industrialization, is one of the most critical issues in densely populated cities such as Cairo. The concentrations and the spatial distribution of fourteen potentially toxic elements (PTEs) in household dust were investigated in Cairo City, Egypt. PTE exposure and human health risk were assessed using the USEPA’s exposure model and guidelines. The levels of As, Cd, Cr, Cu, Hg, Mo, Ni, Pb, and Zn surpassed the background values. Contamination factor index revealed that contamination levels are in the sequence Cd > Hg > Zn > Pb > Cu > As > Mo > Ni > Cr > Co > V > Mn > Fe > Al. The degree of contamination ranges from considerably to very high pollution. Elevated PTE concentrations in Cairo’s household dust may be due to heavy traffic emissions and industrial activities. The calculated noncarcinogenic risk for adults falls within the safe limit, while those for children exceed that limit in some sites. Cairo residents are at cancer risk owing to prolonged exposure to the indoor dust in their homes. A quick and targeted plan must be implemented to mitigate these risks.
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Affiliation(s)
- Ahmed Gad
- Geology Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
- Correspondence: (A.G.); (A.S.)
| | - Ahmed Saleh
- National Research Institute of Astronomy and Geophysics (NRIAG), Cairo 11421, Egypt
- Correspondence: (A.G.); (A.S.)
| | - Hassan I. Farhat
- Geology Department, Faculty of Science, Suez University, El Salam City 43518, Egypt
| | - Yehia H. Dawood
- Geology Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Sahar M. Abd El Bakey
- Department of Biological and Geological Sciences, Faculty of Education, Ain Shams University, Cairo 11341, Egypt
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