Linked Life Data

19256362

Source:http://linkedlifedata.com/resource/pubmed/id/19256362

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2009-3-4
pubmed:abstractText
Concentrations and characteristics of 82 volatile organic compounds (VOCs) were measured in indoor and outdoor air in one elementary school of Beijing by method TO14/15 recommended by USEPA in 2007 summer. And the toxic VOCs for children's health were identified. The study illuminates that the concentration level of total VOCs were higher in indoor air than in outdoor air. Alkanes were most abundant VOCs species accounting for 32.8% of total measured VOCs on average. The chemical speciation of VOCs in indoor air was similar to the outdoor, and the dominant species were isopentane, benzene, toluene, propanal, propene and dichloromethane. In the indoor air, m/p-dichlorobenzene and cyclohexane likely came from indoor sources, proved by the indoor/outdoor concentration ratios of p-dichlorobenzene (65.8) and cyclohexane (10.5), and the large distance between the concentrations of m-dichlorobenzene in indoor air (2.02 x 10(-9)) and outdoor (lower than the detected limit) air. 1, 3-butadiene, chloride vinyl, benzene and chloromethane, whose average cancer risk values were 1.3 x 10(-5), 6.4 x 10(-6), 5.1 x 10(-6) and 3.3 x 10(-6) respectively, exceeded the cancer risk value 1 x 10(-6) in all samples sites. The cumulative cancer risk in indoor air, outdoor air and children house were 24-39 times bigger than 1 x 10(-6). Acrolein was the only non-carcinogenic hazardous species which exceeded its benchmark concentration by 13-72 times in all sites.
pubmed:language
chi
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0250-3301
pubmed:author
pubmed:issnType
Print
pubmed:volume
29
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3326-30
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
[Identification of air toxics from indoor and outdoor measurements of volatile organic compounds in one elementary school in Beijing].
pubmed:affiliation
State Joint Key Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China. victoriahs@gmail.com
pubmed:publicationType
Journal Article, English Abstract, Research Support, Non-U.S. Gov't