Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2009-7-16
pubmed:abstractText
Both epidemiological and toxicological studies indicate that inhalation and subsequent deposition of airborne particles into the lungs have adverse health effects. Recently, the ultrafine particle (UfP) fraction (diameter < 100 nm) has received particular attention, as their small size may lead to more toxic properties. In this study we summarize the current knowledge on the dosimetry of inhaled particles (including UfPs) with a focus on recent data on translocation of UfPs into secondary target organs (such as brain and heart) suggesting that the lifetime dose of ambient UfPs in secondary target organs is about 10(11) particles. Furthermore, we highlight the main pathways of particle induced toxicity and the reasons for the potentially higher toxicity of UfPs. Finally, we discuss recent evidence indicating that (BET) surface area is the single most relevant dose metric for the toxicity of UfPs, which has important implications for regulatory measures on the toxicity of ambient and engineered particles.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1366-5804
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
14 Suppl 1
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
67-73
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Dosimetry and toxicology of inhaled ultrafine particles.
pubmed:affiliation
Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Lung Biology and Disease, Neuherberg, Germany. otmar.schmid@helmholtz-muenchen.de
pubmed:publicationType
Journal Article, Review