https://scholars.lib.ntu.edu.tw/handle/123456789/114535
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor | 環境衛生研究所;Institute of Environmental Health | en |
dc.contributor.author | KUO, HSIEN-WEN | en |
dc.contributor.author | LI, CHIH-SHAN | en |
dc.contributor.author | WANG, JUNG-DER | en |
dc.creator | KUO, HSIEN-WEN;LI, CHIH-SHAN;WANG, JUNG-DER | en |
dc.creator | 郭憲文;李芝珊;王榮德 | zh_TW |
dc.date | 1993 | en |
dc.date.accessioned | 2008-09-03T03:03:28Z | - |
dc.date.accessioned | 2018-06-30T01:24:46Z | - |
dc.date.available | 2008-09-03T03:03:28Z | - |
dc.date.available | 2018-06-30T01:24:46Z | - |
dc.date.issued | 1993 | - |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/81729 | - |
dc.description.abstract | The mass concentrations of both vapor and aerosol phases of 4,4'-bipyridyl were determined by a glass fiber filter and an XAD-2 tube in a paraquat factory. The size distributions of 4,4'-bipyridyl aerosols and particles < 10 microns were measured by a six-stage cascade impactor. The mass concentrations of 4,4'-bipyridyl aerosols were in the range of 81.9 to 159.9 mg/m3 with an average 4,4'-bipyridyl vapor mass concentration of 3.1 mg/m3 at the top of the open tank. On the average, the mass ratio of vapor phase to aerosol phase of 4,4'-bipyridyl was 0.025. Therefore, the aerosol phase is the major form of 4,4'-bipyridyl exposure to the workers in this environment. From the 4,4'-bipyridyl concentrations measured by the sampling systems of an XAD-2 tube alone and a filter followed by an XAD-2 tube, the 4,4'- bipyridyl aerosol collection efficiency of the XAD-2 tube was found to be approximately 50%. The average mass concentrations of less than 10 microns aerosols and 4,4'- bipyridyl aerosol in the occupational environment were 0.42 mg/m3 and 1.26 micrograms/m3, respectively. The mass median aerodynamic diameter (geometric standard deviation) of particles < 10 microns and 4,4'-bipyridyl aerosol are 3.50 microns (2.35) and 3.47 microns (2.58), respectively. The major mass fraction of 4,4'-bipyridyl aerosol occurred in the 3.3-5.8 microns size range. The enclosure efficiencies of a hood cover attached to a suction tube were found to be 88% and 82% for both aerosol and vapor phases of 4,4'- bipyridyl, respectively.(ABSTRACT TRUNCATED AT 250 WORDS) # B0293014 | en |
dc.language | en-us | en |
dc.language.iso | en_US | - |
dc.relation | AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL v.54 pp.440-445 | en |
dc.relation.ispartof | AMERICAN INDUSTRIAL HYGIENE ASSOCIATION JOURNAL | - |
dc.subject | 作業環境 | en |
dc.subject | 蒸氣及氣膠 | en |
dc.subject | 巴拉圭 | en |
dc.subject | 環境衛生 | en |
dc.subject | OCCUPATIONAL ENVIRONMENT | en |
dc.subject | VAPOR AND AEROSOLS | en |
dc.subject | PARAQUAT | en |
dc.subject | ENVIRONMENTAL HEALTH | en |
dc.subject.classification | [SDGs]SDG3 | - |
dc.title | OCCUPATIONAL EXPOSURE TO 4,4'- BIPYRIDYL VAPOR AND AEROSOL DURING PARAQUAT MANUFACTURING | en |
dc.type | journal article | en |
dc.relation.pages | 440-445 | - |
dc.relation.journalvolume | v.54 | - |
item.languageiso639-1 | en_US | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
顯示於: | 環境與職業健康科學研究所 |
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