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By: Hadeel Al Dwaikat

Air quality and potential health hazards of radioactive materials and heavy metals associated with contaminated dusts in Amman, Jordan. By: Hadeel Al Dwaikat.

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By: Hadeel Al Dwaikat

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  1. Air quality and potential health hazards of radioactive materials and heavy metals associated with contaminated dusts in Amman, Jordan. By: HadeelAl Dwaikat Rec-Show 2008

  2. This research discusses the air quality and pollutant in Amman, Jordan during 2001-2002, and the potential health hazards associated with those pollutant. Introduction Rec-Show 2008

  3. 1-Streets dust samples (110), gathered by brushing, twice a year, in winter (January) and in Summer (August). 2-Air dust samples (400) gathered by manual dust collector, on a monthly basses for one whole year. Types of Studied Samples Rec-Show 2008

  4. Studied Samples LocationsFigure 1: A map of Amman and Al Rusaifa study areas showing the location of the street samples and dust collectors Rec-Show 2008

  5. Figure 2: The design of the directional dust collector used in this study. Rec-Show 2008

  6. Table 1: Locations of the collector’s installation sites, and reasons for choosing them. Rec-Show 2008

  7. Studied Air Pollutants in related with health hazard 1-Heavy Metals 2-Radioactive Elements Rec-Show 2008

  8. Table 2: List of the heavy metals, essential, toxic, natural, and anthropogenic in origin Rec-Show 2008

  9. Rec-Show 2008

  10. Table 3: The international standards used in this study, for trigger concentration of heavy metals (µg/g air –dried sediments ). Rec-Show 2008

  11. Streets Dust Samples Heavy metals concentration Rec-Show 2008

  12. Table 4:Winter street sample heavy metal concentrations, and their relation to international standards (the bold font values are those exceeding the international triggers) Rec-Show 2008

  13. Table 5: Summer street sample heavy metal concentrations, and their relation to international standards (the bold font values are those exceeding the international triggers) Rec-Show 2008

  14. Figure 3: Street sample heavy metal mean concentrations, their temporal distribution and relation to the international trigger value (the red arrows point to the Pb, Ni and values exceeding the international triggers). Rec-Show 2008

  15. Figure 4: The spatial distribution of the heavy metal trigger values in street samples (mean concentrations). Rec-Show 2008

  16. Collector Dust Samples Heavy metals concentration Giving according to seasons Rec-Show 2008

  17. Table 6: Spring dust collector sample heavy metal concentrations, and their relation to international standards (the bold font values are those exceeding the international triggers) Rec-Show 2008

  18. Table 7: Summer dust collector sample heavy metal concentrations, and their relation to international standards (the bold font values are those exceeding the international triggers Rec-Show 2008

  19. Table 8: Autumn dust collector sample heavy metal concentrations, and their relation to international standards (the bold font values are those exceeding the international triggers) Rec-Show 2008

  20. Table 9: Winter dust collector sample heavy metal concentrations, and their relation to international standards (the bold font values are those exceeding the international triggers). Rec-Show 2008

  21. Figure 5: Collector sample mean heavy metals concentrations, their temporal distribution and relation to the international trigger values (the red arrows point to the values exceeding the international triggers Rec-Show 2008

  22. Figure 6: The spatial distribution of the mean heavy metal trigger values in the dust collector samples. Rec-Show 2008

  23. Streets Dust Samples Radioactive concentration Rec-Show 2008

  24. Table 10: The radioactive protection standards, their publication date and dose recommendations Rec-Show 2008

  25. Figure9: An overview of the natural radioactive materials effects on human health Rec-Show 2008

  26. Table 11: Annual effective dose (mSv/yr) from natural nuclides in the street samples of January 2001, and their relation to international limits. Rec-Show 2008

  27. Table 12: Annual effective dose (mSv/yr) from natural nuclides in August 2001 street samples, and their relation to international limits Rec-Show 2008

  28. Figure 10: Street samples spatial and temporal distribution for the mean values of total normal annual effective radiation dose, exceeding the limits of 0.3 and 1 mSv/yr. Rec-Show 2008

  29. Figure 11: The mean values of the total annual effective dose (mSv/yr) from natural nuclides in the street samples during January and August 2001, and their relation to international limits. Rec-Show 2008

  30. Collector Dust Samples Radioactive concentration Rec-Show 2008

  31. Table 13: Annual effective dose (mSv/yr) in the dust collectors from natural nuclides in the spring collector samples, and their relation to international limits. Rec-Show 2008

  32. Table 14: Annual effective dose (mSv/yr) from natural nuclides in the summer collector samples, and their relation to international limits. Rec-Show 2008

  33. Table 15: Annual effective dose (mSv/yr) from natural nuclides in the autumn collector samples, and their relation to international limits. Rec-Show 2008

  34. Table16: Annual effective dose (mSv /yr) from natural nuclides in the winter collector samples, and their relation to international limits. Rec-Show 2008

  35. Figure 12: Collector samples spatial and temporal distribution for the mean values of normal total annual effective dose which exceed the limits of 0.3 and 1 mSv/yr from radionuclides. Rec-Show 2008

  36. Figure 13: Radionuclides mean dose distribution in the dust collectors, during the four seasons. (Please note that the reddish areas are the highest value in each season and that each pie chart is located in the highest effective dose locations). Rec-Show 2008

  37. Figure 14: The mean values of the total annual effective dose (mSv/yr) from natural nuclides in the collector samples, and their relation with international limits. Rec-Show 2008

  38. Conclosions The findings and results of this research in regards the potential health hazards associated with contaminated dusts can be concluding as follows 1- The radioactive Results • 1-The Street’s and collector’s dust measurements for one whole year of dust gathering from different wind directions show no values of the effective dose lower than the 0.3 mSv/yr level recommended by the (2003) standards, and 24% of them are higher than the 1 mSv/yr in the (2000) standards. • 2- This could be due to the local radioactivity in potential source materials, but the possibility of wind transporting radioactive dusts from surrounding countries cannot be ignored. Rec-Show 2008

  39. 2- The heavy metals • 1-The research establishes that the heavy metals concentration in street samples, based on their relation to international standards, does not pose a threat to human health while those associated with the dust collected from the air do present a health hazard. Rec-Show 2008

  40. Recommendations • Those finding can be considered as a serious threat to public health. • Further studies and actions need to be undertaken to establish better understanding and handling for those sensitive subject. Rec-Show 2008

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