Mohamed Abou Elwafa Abdallah

Summary

Country: UK

Publications

  1. ncbi request reprint Atmospheric concentrations, gaseous-particulate distribution, and carcinogenic potential of polycyclic aromatic hydrocarbons in Assiut, Egypt
    Mohamed Abou Elwafa Abdallah
    Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
    Environ Sci Pollut Res Int 21:8059-69. 2014
  2. doi request reprint Polybrominated diphenyl ethers in UK human milk: implications for infant exposure and relationship to external exposure
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, College of Life and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom Department of Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt Electronic address
    Environ Int 63:130-6. 2014
  3. ncbi request reprint A one-step extraction/clean-up method for determination of PCBs, PBDEs and HBCDs in environmental solid matrices
    Mohamed Abou Elwafa Abdallah
    Department of Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt
    Environ Sci Process Impacts 15:2279-87. 2013
  4. doi request reprint In vitro assessment of the bioaccessibility of brominated flame retardants in indoor dust using a colon extended model of the human gastrointestinal tract
    Mohamed Abou Elwafa Abdallah
    Department of Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt
    J Environ Monit 14:3276-83. 2012
  5. doi request reprint Modification and calibration of a passive air sampler for monitoring vapor and particulate phase brominated flame retardants in indoor air: application to car interiors
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B152TT, United Kingdom
    Environ Sci Technol 44:3059-65. 2010
  6. doi request reprint Tetrabromobisphenol-A, hexabromocyclododecane and its degradation products in UK human milk: relationship to external exposure
    Mohamed Abou Elwafa Abdallah
    Department of Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt
    Environ Int 37:443-8. 2011
  7. doi request reprint Indoor contamination with hexabromocyclododecanes, polybrominated diphenyl ethers, and perfluoroalkyl compounds: an important exposure pathway for people?
    Stuart Harrad
    Division of Environmental Health and Risk Management, School of Geography, Earth, and Environmental Sciences, University of Birmingham, Birmingham, UK
    Environ Sci Technol 44:3221-31. 2010
  8. doi request reprint Brominated flame retardants in dust from UK cars--within-vehicle spatial variability, evidence for degradation and exposure implications
    Stuart Harrad
    School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
    Chemosphere 82:1240-5. 2011
  9. doi request reprint Current-use brominated flame retardants in water, sediment, and fish from English lakes
    Stuart Harrad
    Division of Environmental Health and Risk Management, School of Geography, Earth, and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
    Environ Sci Technol 43:9077-83. 2009
  10. ncbi request reprint Hexabromocyclododecanes and tetrabromobisphenol-A in indoor air and dust in Birmingham, U.K: implications for human exposure
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom
    Environ Sci Technol 42:6855-61. 2008

Collaborators

Detail Information

Publications20

  1. ncbi request reprint Atmospheric concentrations, gaseous-particulate distribution, and carcinogenic potential of polycyclic aromatic hydrocarbons in Assiut, Egypt
    Mohamed Abou Elwafa Abdallah
    Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt
    Environ Sci Pollut Res Int 21:8059-69. 2014
    ..While particulate phase PAHs have higher contribution to the TCA, gaseous phase PAHs present at higher concentrations in the atmosphere are more capable of undergoing atmospheric reactions to form more toxic derivatives. ..
  2. doi request reprint Polybrominated diphenyl ethers in UK human milk: implications for infant exposure and relationship to external exposure
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, College of Life and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom Department of Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt Electronic address
    Environ Int 63:130-6. 2014
    ..Predictions compared well with those observed for Σtri-hexa BDEs and BDE-209 in breast milk. ..
  3. ncbi request reprint A one-step extraction/clean-up method for determination of PCBs, PBDEs and HBCDs in environmental solid matrices
    Mohamed Abou Elwafa Abdallah
    Department of Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt
    Environ Sci Process Impacts 15:2279-87. 2013
    ....
  4. doi request reprint In vitro assessment of the bioaccessibility of brominated flame retardants in indoor dust using a colon extended model of the human gastrointestinal tract
    Mohamed Abou Elwafa Abdallah
    Department of Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt
    J Environ Monit 14:3276-83. 2012
    ..Bioaccessibility of tri-hepta BDEs ranged from 32-58%. No decrease in the bioaccessibility with increasing level of bromination was observed in the studied PBDEs...
  5. doi request reprint Modification and calibration of a passive air sampler for monitoring vapor and particulate phase brominated flame retardants in indoor air: application to car interiors
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B152TT, United Kingdom
    Environ Sci Technol 44:3059-65. 2010
    ..No significant differences (p < 0.05) were observed between levels of SigmaHBCDs and Sigmatrito hexa- BDEs in cabins and trunks. However, TBBP-A, BDE-209, and SigmaPBDEs concentrations were significantly higher in vehicle cabins...
  6. doi request reprint Tetrabromobisphenol-A, hexabromocyclododecane and its degradation products in UK human milk: relationship to external exposure
    Mohamed Abou Elwafa Abdallah
    Department of Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt
    Environ Int 37:443-8. 2011
    ..This may indicate the human half-life of TBBP-A is greater than observed previously, that intakes may be underestimated, or that concentrations reported here reflect recent elevated episodic exposure...
  7. doi request reprint Indoor contamination with hexabromocyclododecanes, polybrominated diphenyl ethers, and perfluoroalkyl compounds: an important exposure pathway for people?
    Stuart Harrad
    Division of Environmental Health and Risk Management, School of Geography, Earth, and Environmental Sciences, University of Birmingham, Birmingham, UK
    Environ Sci Technol 44:3221-31. 2010
    ....
  8. doi request reprint Brominated flame retardants in dust from UK cars--within-vehicle spatial variability, evidence for degradation and exposure implications
    Stuart Harrad
    School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
    Chemosphere 82:1240-5. 2011
    ..Comparison with overall exposure via diet, dust ingestion, and inhalation shows while in-vehicle exposure is a minor contributor to overall exposure to BDE-99, ΣHBCDs, and TBBP-A, it is a significant pathway for BDE-209...
  9. doi request reprint Current-use brominated flame retardants in water, sediment, and fish from English lakes
    Stuart Harrad
    Division of Environmental Health and Risk Management, School of Geography, Earth, and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
    Environ Sci Technol 43:9077-83. 2009
    ..While HBCD chiral signatures are racemic in water and sediment, our data reveal enantiomeric enrichment of (-)alpha-HBCD and (+)gamma-HBCD in fish...
  10. ncbi request reprint Hexabromocyclododecanes and tetrabromobisphenol-A in indoor air and dust in Birmingham, U.K: implications for human exposure
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom
    Environ Sci Technol 42:6855-61. 2008
    ..Inhalation appears a minor exposure pathway to both HBCDs and TBBP-A. On average, dust is 33% alpha-, 11% beta-, and 56% gamma-HBCD, while air is 22% alpha-, 11% beta-, and 65% gamma-HBCD...
  11. doi request reprint Personal exposure to HBCDs and its degradation products via ingestion of indoor dust
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom
    Environ Int 35:870-6. 2009
    ..In contrast, although participants spent less time in cars than in offices, car dust makes a higher average contribution (17%) to SigmaHBCDs exposure than office dust (13%)...
  12. doi request reprint Comparative evaluation of liquid chromatography-mass spectrometry versus gas chromatography-mass spectrometry for the determination of hexabromocyclododecanes and their degradation products in indoor dust
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, UK
    J Chromatogr A 1190:333-41. 2008
    ..This finding suggests that the elimination of HBr is the major degradation pathway for HBCDs in dust...
  13. ncbi request reprint Dust from U.K. primary school classrooms and daycare centers: the significance of dust as a pathway of exposure of young U.K. children to brominated flame retardants and polychlorinated biphenyls
    Stuart Harrad
    Division of Environmental Health and Risk Management, Public Health Building, School of Geography, Earth, and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
    Environ Sci Technol 44:4198-202. 2010
    ..K. dietary exposure substantially. Moreover, high-end estimates of dust exposure to BDE-99 and BDE-209 (4.3 and 13000 ng/kg bw/day, respectively) exceeded HBLVs of 0.23-0.30 and 7000 ng/kg bw/day respectively...
  14. doi request reprint Calibration of two passive air sampler configurations for monitoring concentrations of hexabromocyclododecanes in indoor air
    Stuart Harrad
    School of Geography, Earth and Environmental Sciences, The University of Birmingham, Edgbaston, Birmingham B15 2 TT, UK
    J Environ Monit 10:527-31. 2008
    ..Deployment of the part-sheltered configuration yielded concentrations approximately 35% lower than those obtained using a high volume sampler, consistent with PUF disk samplers measuring primarily the vapour phase...
  15. ncbi request reprint Causes of variability in concentrations and diastereomer patterns of hexabromocyclododecanes in indoor dust
    Stuart Harrad
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
    Environ Int 35:573-9. 2009
    ..Significant negative correlation was observed in one room between concentrations of SigmaHBCDs and dust loading (g dust m(-2) floor), implying "dilution" occurs at higher dust loadings...
  16. doi request reprint Concentrations of brominated flame retardants in dust from United Kingdom cars, homes, and offices: causes of variability and implications for human exposure
    Harrad Stuart
    Division of Environmental Health and Risk Management, Public Health Building, School of Geography, Earth, and Environmental Sciences, University of Birmingham, Birmingham, United Kingdom
    Environ Int 34:1170-5. 2008
    ..Significant negative correlation was observed in one room between concentrations of BDE-47, 99, and 153 and dust loading (g dust m(-2) floor), suggesting "dilution" occurs at higher dust loadings...
  17. ncbi request reprint Polybrominated diphenyl ethers (PBDEs) in English freshwater lakes, 2008-2012
    Congqiao Yang
    Division of Environmental Health and Risk Management, School of Geography, Earth, and Environmental Sciences, University of Birmingham, Birmingham, UK Electronic address
    Chemosphere 110:41-7. 2014
    ....
  18. doi request reprint Isotope dilution method for determination of polybrominated diphenyl ethers using liquid chromatography coupled to negative ionization atmospheric pressure photoionization tandem mass spectrometry: validation and application to house dust
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom
    Anal Chem 81:7460-7. 2009
    ..The method also allows the use of (13)C-labeled internal standards, which compensate for instrumental fluctuations and matrix-related ion suppression or enhancement...
  19. ncbi request reprint Organophosphate flame retardants in indoor dust from Egypt: implications for human exposure
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom
    Environ Sci Technol 48:4782-9. 2014
    ..Estimated exposures of adults and toddlers to PFRs via dust ingestion were much lower than the reported reference doses, indicating no immediate health risk to the Egyptian population...
  20. doi request reprint Enantioselective biotransformation of hexabromocyclododecane by in vitro rat and trout hepatic sub-cellular fractions
    Mohamed Abou Elwafa Abdallah
    Division of Environmental Health and Risk Management, School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham, B15 2TT, United Kingdom
    Environ Sci Technol 48:2732-40. 2014
    ..The greater enrichment of (-)-α-HBCD in rat than in trout underlines the species-specific differences in HBCD metabolism and the need for caution when extending similar results from animal studies to humans. ..