were purchased from Supelco Technical Service, and consisted of the 16 PAHs
listed by U.
Exposure risk to carcinogenic PAHs
in indoor-air during biomass combustion whilst cooking in rural India.
Among the worst offenders were a group of 11 "high molecular weight" PAH
derivative compounds, of which no analysis had previously been reported.
are mostly formed during the incomplete combustion and pyrolysis of fossil fuels or wood, and from the release of petroleum products such as diesel and petrol from fuel combustion in industries and homes.
The importance of PAHs
in the environment is discussed because of their persistent, toxic, mutagenic, and carcinogenic characteristics .
Later research on the distribution of individual PAHs
in the sediments of the northern part of L.
The current assessment of the health significance of exposure to PAHs
determines the health risk of exposure to the traditionally used marker substance Benzo(a)pyrene.
The large PAHs
take over because they are more robust than the smaller, irregularly-shaped PAHs
, which are destroyed by the unshielded starlight," said Christin Boersma, an astrophysicist at Ames.
Finally we analyzed 12 PAHs
(phenanthrene, anthracene, fluoranthene, pyrene, benzo[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3-c,d]pyrene, dibenzo[a,h]anthracene, and benzo[g,h,i]-perylene) using gas chromatography-mass spectrometry in the multiple ion detection mode.
Children with high exposure to PAHs
, based on air sampling in and around their homes, made high amounts of IgE and had lower T-reg function than children exposed to low levels.
The major PAHs
source is incomplete combustion of organic materials [7-9].
Due to its health impact PAHs
have received considerable attention as an environmental organic pollutant widely present in the air, water, aquatic organisms, soils and sediments (Nadal, et al, 2004).