title: Transfer of ²¹⁰Po, ²¹⁰Pb and ²³⁸U from some medicinal plants to their essential oils.
abstract: Essential oils were extracted from 35 medicinal plants used by Syrians, organic compounds were determined in these oils and concentrations of (210)Po (210)Pb and (238)U were determined in the original plants and in the essential oils. The results showed that the highest activity concentrations of (210)Po and (210)Pb were found in leaves with large surfaces and in Sage were as high as 73.5 Bq kg(-1) and 73.2 Bq kg(-1), respectively. The activity concentration of (238)U was as high as 4.26 Bq kg(-1) in Aloe. On the other hand, activity concentrations of (210)Po ranged between 0.2 and 71.1 Bq kg(-1) in extracted essential oils for Rosemary and False yellowhead, respectively. The activity concentration of (210)Pb reached 63.7 Bq kg(-1) in Aloe oil. The activity concentrations of (238)U were very low in all extracted oils; the highest value was 0.31 Bq kg(-1) in peel of Orange oil. The transfer of (210)Po and (210)Pb from plant to its oil was the highest for Eugenia; 7.1% and 5.5% for (210)Po and (210)Pb, respectively. A linear relationship was found between the transfer factor of radionuclides from plant to its essential oil and the chemical content of this oil.
authors.affiliation: Department of Protection and Safety, Atomic Energy Commission of Syria, Damascus, P.O. Box 6091, Syria. Electronic address: prscientific3@aec.org.sy.
authors.forename: M S
authors.initials: MS
authors.lastname: Al-Masri
authors.affiliation: Department of Protection and Safety, Atomic Energy Commission of Syria, Damascus, P.O. Box 6091, Syria.
authors.forename: Y
authors.initials: Y
authors.lastname: Amin
authors.affiliation: Department of Protection and Safety, Atomic Energy Commission of Syria, Damascus, P.O. Box 6091, Syria.
authors.forename: S
authors.initials: S
authors.lastname: Ibrahim
authors.affiliation: Department of Protection and Safety, Atomic Energy Commission of Syria, Damascus, P.O. Box 6091, Syria.
authors.forename: M
authors.initials: M
authors.lastname: Nassri
mesh_terms: D007856:Lead Radioisotopes / Q000378:metabolism*; D009822:Oils, Volatile / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D011059:Polonium / Q000378:metabolism*; D011834:Radiation Monitoring; D013593:Syria; D014501:Uranium / Q000378:metabolism*
chemical_list: D007856:Lead Radioisotopes; D009822:Oils, Volatile; D014501:Uranium; D011059:Polonium
keywords: (210)Pb; (210)Po; (238)U; Essential oil; Medicinal plants; Transfer