title: Estimation of human daily boron exposure in a boron-rich area.
abstract: Although, the safe limits of human daily boron (B) exposure are not absolutely clear, there is a growing interest in B and its effects on human health. The aim of the present study was to estimate daily B exposure in 66 males in Turkey living in a B-rich area using water containing at least 2 mg/l boron, with an average age of 38.55 (se 1.66) years and an average number of years of residence in the B-rich area of 35.89 (se 1.73). Another group of males (n 57), living in the city centres of Balikesir and Ankara, were taken as controls; the average age and number of years of residence for this group were 29.44 (se 1.43) and 10.26 (se 1.83) years, respectively. As it is assumed that the B level in urine reflects daily B exposure, the amount of urinary B of both the study and control groups was analysed by using an inductively coupled plasma optical emission spectrometry (ICP-OES) technique. The average daily B exposure value was calculated as 6.77 (se 0.47) mg in the study group and 1.26 (se 0.1) mg in the controls. The results of this study are expected to contribute to creating a reference value for a safe daily B exposure.
authors.affiliation: Department of Medical Biology, Faculty of Medicine,Yüzüncü Yil University, 65200 Van, Turkey. korkmaz@yyu.edu.tr
authors.forename: Mehmet
authors.initials: M
authors.lastname: Korkmaz
authors.forename: Uğur
authors.initials: U
authors.lastname: Sayli
authors.forename: Bekir Sitki
authors.initials: BS
authors.lastname: Sayli
authors.forename: Sezgin
authors.initials: S
authors.lastname: Bakirdere
authors.forename: Serap
authors.initials: S
authors.lastname: Titretir
authors.forename: Osman
authors.initials: O
authors.lastname: Yavuz Ataman
authors.forename: Siddik
authors.initials: S
authors.lastname: Keskin
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D049628:Body Size / Q000502:physiology; D001895:Boron / Q000633:toxicity* / Q000652:urine; D003404:Creatinine / Q000097:blood; D004781:Environmental Exposure / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D018570:Risk Assessment / Q000379:methods; D014421:Turkey / Q000453:epidemiology
chemical_list: D003404:Creatinine; D001895:Boron