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dc.contributor.authorPanida Navasumriten_US
dc.contributor.authorSirirat Chanvaiviten_US
dc.contributor.authorPornpat Intarasunanonten_US
dc.contributor.authorManaswee Arayasirien_US
dc.contributor.authorNarumon Lauhareungpanyaen_US
dc.contributor.authorVaraporn Parnloben_US
dc.contributor.authorDaam Settachanen_US
dc.contributor.authorMathuros Ruchirawaten_US
dc.contributor.otherChulabhorn Research Instituteen_US
dc.contributor.otherMahidol Universityen_US
dc.date.accessioned2018-06-21T08:34:12Z-
dc.date.available2018-06-21T08:34:12Z-
dc.date.issued2005-05-30en_US
dc.identifier.citationChemico-Biological Interactions. Vol.153-154, (2005), 75-83en_US
dc.identifier.issn00092797en_US
dc.identifier.other2-s2.0-20444365784en_US
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=20444365784&origin=inwarden_US
dc.identifier.urihttp://repository.li.mahidol.ac.th/dspace/handle/123456789/17163-
dc.description.abstractExposure to benzene in air is a concern in Thailand, particularly since it was observed that the incidence of blood-related cancers, such as leukemia and lymphoma, has increased in the past few decades. In Bangkok, the mean atmospheric levels of benzene on main roads and in schools were 33.71 and 8.25 ppb, respectively, while in gasoline service stations and petrochemical factories the mean ambient levels were 64.78 and 66.24 ppb, respectively. Cloth vendors (22.61 ppb) and grilled-meat vendors (28.19 ppb) working on the roadsides were exposed to significantly higher levels of benzene than the control group (12.95 ppb; p < 0.05). Bangkok school children (5.50 ppb) were exposed to significantly higher levels of benzene than provincial school children (2.54 ppb; p < 0.01). Factory workers (73.55 ppb) and gasoline service attendants (121.67 ppb) were exposed to significantly higher levels of benzene than control workers (4.77 ppb; p < 0.001). In accordance with the increased benzene exposures, levels of urinary trans,trans-muconic acid (MA) were significantly increased in all benzene-exposed groups. In school children, the levels of MA were relatively high, taking into account the much lower level of exposure. Blood benzene levels were also significantly increased in Bangkok school children (77.97 ppt; p < 0.01), gasoline service attendants (641.84 ppt; p < 0.05) and factory workers (572.61 ppt; p < 0.001), when compared with the respective controls. DNA damage, determined as DNA strand breaks, was found to be elevated in gasoline service attendants, petrochemical factory workers, and Bangkok school children (p < 0.001). The cytogenetic challenge assay, which measures DNA repair capacity, showed varying levels of significant increases in the numbers of dicentrics and deletions in gasoline service attendants, petrochemical factory workers and Bangkok school children, indicating a decrease in DNA repair capacity in these subjects. © 2005 Elsevier Ireland Ltd. All rights reserved.en_US
dc.rightsMahidol Universityen_US
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=20444365784&origin=inwarden_US
dc.subjectPharmacology, Toxicology and Pharmaceuticsen_US
dc.titleEnvironmental and occupational exposure to benzene in Thailanden_US
dc.typeArticleen_US
dc.rights.holderSCOPUSen_US
dc.identifier.doi10.1016/j.cbi.2005.03.010en_US
Appears in Collections:Scopus 2001-2005

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