Exposure Assessment of Lead among Japanese Children
スポンサーリンク
概要
- 論文の詳細を見る
Objective:Lead intake from possible exposure routes among children residing in the Tokyo Metropolitan Area was estimated. Methods: Lead concentrations in house dust samples collected from the houses of the children and those in 24-h duplicate diet samples of the children were determined. The daily lead intake was estimated by multiplying the lead concentrations in the house dust, diet, soil and ambient air (the latter two were from the literatures) by the corresponding intake and/or inhalation rates, and summing all of the products. Bioaccessibility tests were performed on the house dust, soil and diet samples to determine the lead uptake level. Results: Children residing in the Tokyo Metropolitan Area were estimated to be exposed to 21.5 μg of lead on a daily basis, with a maximum intake of up to 70.4 pg. The average weekly intake per kg body weight for a 5-year-old Japanese child was found to be 8.0 μg/kg bw/wk, which is below the Provisional Tolerable Weekly Intake (PTWI) of 25 μg/kg bw/wk. However, the maximum weekly intake was found to be 26 μg/kg bw/wk. Conclusions: House dust and soil ingestion can be the predominant routes of exposure to lead among children in Japan, and the source(s) of lead in such media must be specified to reduce the lead intake level of the children.
- 日本衛生学会の論文
著者
-
YOSHINAGA Jun
Institute of Environmental Studies, The University of Tokyo
-
Aung N
Univ. Tokyo Tokyo
-
Yoshinaga J
Department Of Environmental Studies The University Of Tokyo
-
Yoshinaga J
National Institute For Environmental Studies
-
Yoshinaga Jun
Institute Of Environmental Studies The University Of Tokyo
-
ALING Nyein
Institute of Environmental Studies, The University of Tokyo
-
TAKAHASHI Jun-ichi
Yokogawa Analytical Systems Inc.
-
Takahashi J
Yokogawa Analytical Systems Inc.
関連論文
- Exposure assessment of phthalate esters in Japanese pregnant women by using urinary metabolite analysis
- Retrospective In Utero Exposure Assessment of PCBs Using Preserved Umbilical Cords and Its Application to Case-Control Comparison
- Crystallinity Improvement by Synchrotron Radiation Irradiation in Low-Temperature Si Epitaxial Growth Using Disilane : Beam Induced Physics and Chemistry
- Crystallinity Improvement by Synchrotron Radiation Irradiation in Low-Temperature Si Epitaxial Growth Using Disilane
- Daily Urinary Excretion of Bisphenol A
- Marine Sediment Certified Reference Material for Tin Speciation
- Exposure Assessment of Lead among Japanese Children
- Element Concentrations in NIES Candidate Marine Sediment Certified Reference Material. Reference Values for Major and Trace Elements
- Analysis of Lead in Tooth Enamel by Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry
- Statistical approach for the source identification of boron in leachates from industrial landfills
- Comparison of Compliance Test for Soil of Ministry of Environment with an in vitro Soil Oral Bioaccessibility Test for Lead and Cadmium
- Lead in Playground Soil : Exposure Estimation of Children via Ingestion and Contamination Source
- Lead Isotopic Compositions of Environmental Certified Reference Materials for an Inter-Laboratory Comparison of Lead Isotope Analysis