Abstract:
OBJECTIVES:The sum of urinary inorganic arsenic (iAs), monomethylarsonic acid (MMA), and dimethylarsinic acid (DMA) concentrations is used for the biological monitoring of occupational iAs exposure. Although DMA is a major metabolite of iAs, it is an inadequate index because high DMA levels are present in urine after seafood consumption. We estimated the urinary iAs+MMA concentration corresponding to iAs exposure. METHODS:We used data from two arsenic speciation analyses of urine samples from 330 Bangladeshi with oral iAs exposure and 172 Japanese workers without occupational iAs exposure using high-performance liquid chromatography with inductively coupled plasma mass spectrometry. RESULTS:iAs, MMA, and DMA, but not arsenobetaine (AsBe), were detected in the urine of the Bangladeshi subjects. The correlation between iAs+MMA+DMA and iAs+MMA was obtained as log (iAs+MMA) = 1.038 log (iAs+MMA+DMA) -0.658. Using the regression formula, the iAs+MMA value was calculated as 2.15 and 7.5 μg As/l, corresponding to 3 and 10 μg As/m(3) of exposures, respectively. In the urine of the Japanese workers, arsenic was mostly excreted as AsBe. We used the 95th percentile of iAs+MMA (12.6 μg As/l) as the background value. The sum of the calculated and background values can be used as a biological indicator of iAs exposure. CONCLUSION:We propose 14.8 and 20.1 μg As/l of urinary iAs+MMA as the biological indicators of 3 and 10 μg As/m(3) iAs exposure, respectively.
journal_name
J Occup Healthjournal_title
Journal of occupational healthauthors
Hata A,Kurosawa H,Endo Y,Yamanaka K,Fujitani N,Endo Gdoi
10.1539/joh.15-0241-OAsubject
Has Abstractpub_date
2016-05-25 00:00:00pages
196-200issue
2eissn
1341-9145issn
1348-9585journal_volume
58pub_type
杂志文章abstract::The concept of biological monitoring (BM) has gained the special interest of individual scientists and international organizations. Today, when analytical problems have almost ceased due to new laboratory techniques and quality assurance systems, the methods for interpretation of results have become the most important...
journal_title:Journal of occupational health
pub_type: 杂志文章,评审
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更新日期:2020-01-01 00:00:00
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journal_title:Journal of occupational health
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doi:10.1539/joh.15-0287-OA
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journal_title:Journal of occupational health
pub_type: 杂志文章
doi:10.1539/joh.17-0150-CS
更新日期:2018-03-27 00:00:00
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journal_title:Journal of occupational health
pub_type: 杂志文章
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更新日期:2004-05-01 00:00:00
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doi:10.1539/joh.45.293
更新日期:2003-09-01 00:00:00
abstract::Slovenia is a small, fast developing country in the EU with approximately 2,000,000 inhabitants and 700,000 employed. Occupational medicine has been present in Slovenia for as long as 500 yr. Today, 130 specialists of occupational medicine are in charge of health protection of the employed (including transport workers...
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更新日期:2009-01-01 00:00:00
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doi:10.1002/1348-9585.12146
更新日期:2020-01-01 00:00:00
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doi:10.1539/joh.l8043
更新日期:2008-01-01 00:00:00
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更新日期:2009-01-01 00:00:00
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更新日期:2014-01-01 00:00:00
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更新日期:2007-03-01 00:00:00
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更新日期:2010-01-01 00:00:00
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更新日期:2020-01-01 00:00:00
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更新日期:2014-01-01 00:00:00
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更新日期:2019-11-01 00:00:00
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