Linked Life Data

10880144

Source:http://linkedlifedata.com/resource/pubmed/id/10880144

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2000-10-16
pubmed:abstractText
An aerosol generation and exposure system to evaluate the role of water-soluble gases in particulate matter (PM)-induced injury was designed, built, and validated by generating test atmospheres to study the role of hydrogen peroxide in PM-induced toxicity. In this system, particle number concentration, size distribution, hydrogen peroxide concentration, and water concentration can all be varied. An ammonium sulfate aerosol with mass median diameter 0.46 +/- 0.01 microm was used as a model atmospheric aerosol because ammonium sulfate is a major component of the fine aerosol, and the water uptake of ammonium sulfate aerosol is well characterized. The following four test atmospheres were generated: (1) ammonium sulfate aerosol, (2) an aerosol containing hydrogen peroxide and ammonium sulfate, (3) vapor-phase hydrogen peroxide, and (4) particle-free air. All test atmospheres were maintained at a relative humidity of 85%. Particle size distribution, number concentration, total hydrogen peroxide concentration, temperature, and relative humidity were measured continuously in the exposure chamber. The gas-particle partitioning of hydrogen peroxide was calculated using total hydrogen peroxide concentration, the Henry's law constant for hydrogen peroxide in water, and aerosol water content. We found that the aerosol generation system produced stable concentrations throughout the 2-hour exposures.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0895-8378
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
563-76
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
An exposure system to study the effects of water-soluble gases on PM-induced toxicity.
pubmed:affiliation
Environmental and Occupational Health Science Institute, Rutgers University, New Brunswick, NJ, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't