Benzo(a)pyrene is one compound in a group of over 100 compounds that are called polycyclic aromatic hydrocarbons (PAHs). These compounds are naturally occurring and are also manmade.
Where is benzo a pyrene found?
A chemical that comes from certain substances when they are not burned completely. It is found in car exhaust, smoke from wood fires, tobacco, oil and gas products, charred or grilled foods, and other sources.
What is the source of benzo a pyrene?
Benzo(a)pyrene is found in nature from the eruption of volcanoes and forest fires. Yet this chemical compound is also man-made. Benzo(a)pyrene can be found in surface water, tap water, rainwater, groundwater, wastewater and sewage sludge.
Why is benzo a pyrene toxic?
Background. Benzo(a)pyrene (BaP) is bioactivated to its carcinogenic form by phase 1 and phase 2 metabolism. As with other polycyclic aromatic hydrocarbons (PAHs), the presence of the ‘bay region’ contributes greatly to the carcinogenicity of BaP.
Is benzo a pyrene hydrophobic or hydrophilic?
Because of its lipophilic and hydrophobic properties, benzo(a)pyrene can easily cross cell membranes and attend to bioaccumulate in lipid tissues.
Is benzo a pyrene volatile?
In this study, we use atmospheric field measurements to make inferences as to the mechanism of oxidation of the semi-volatile PAH congener, benzo(a)pyrene, generating results which may be of relevance to the atmospheric oxidation of semi-volatile compounds more generally.
Is benzo a pyrene a gas?
Benzo[a]pyrene appears as a liquid. Benzo[a]pyrene is an ortho- and peri-fused polycyclic arene consisting of five fused benzene rings. It has a role as a carcinogenic agent and a mouse metabolite.
Is benzo a pyrene a liquid?
Benzo[a]pyrene appears as a liquid. Benzo[a]pyrene is an ortho- and peri-fused polycyclic arene consisting of five fused benzene rings.
Is benzo a pyrene soluble in water?
Benzo(a)pyrene
| Names | |
|---|---|
| Melting point | 179 °C (354 °F; 452 K) |
| Boiling point | 495 °C (923 °F; 768 K) |
| Solubility in water | 0.2 to 6.2 μg/L |
| Magnetic susceptibility (χ) | -135.7·10−6 cm3/mol |
Is benzo a pyrene hydrophobic?
Researchers have also revealed that PAHs cause brain damage and behavior disorder and they could be transferred from mothers to newborns and young infants [19,20]. Because of its lipophilic and hydrophobic properties, benzo(a)pyrene can easily cross cell membranes and attend to bioaccumulate in lipid tissues.
How do you say benzo a pyrene?
Also benz·py·rene [benz-pahy-reen, benz-pahy-reen] /bɛnzˈpaɪ rin, ˌbɛnz paɪˈrin/ .
Is benzo a pyrene carcinogenic?
The PAH prototype benzo[a]pyrene (B[a]P), an AhR ligand, exhibits a strong carcinogenic potential and it is classified as a carcinogen to humans by the International Agency for Research on Cancer (IARC).
What is the toxicity of benzo[a]pyrene?
In animals, oral exposure to benzo[a]pyrene has been shown to result in developmental toxicity (including developmental neurotoxicity), reproductive toxicity, and immunotoxicity. Developmental effects in rats and mice include neurobehavioral changes and cardiovascular effects following gestational exposures.
Is 3/4-benzpyrene a carcinogen?
3,4-Benzpyrene is reasonably anticipated to be a human carcinogen. Benzo[a]pyrene, also known as 3, 4-Benzopyrene or 3, 4-BP, is classified as a member of the Benzopyrenes. Benzopyrenes are organic compounds containing a benzene fused to a pyrene(benzo[def]phenanthrene) ring system.
How is pyrene released into the atmosphere?
– Benzo[a]pyrene (along with other PAHs) is released into the atmosphere as a component of smoke from forest fires, industrial processes, vehicle exhaust, cigarettes, and through the burning of fuel (such as wood, coal, and petroleum products).
