Skin appears to be key pathway for absorption of BBQ fumes

August 4, 2018

(HealthDay)—Dermal absorption is a more important pathway than inhalation for the intake of low-molecular-weight polycyclic aromatic hydrocarbons (PAHs) during barbecuing, according to a study published recently in Environmental Science & Technology.

Jia-Yong Lao, from Jinan University in Guangzhou, China, and colleagues collected and analyzed urine samples for nine hydroxyl (OH)-PAHs in a case study of barbecue. Air, food, and cotton clothing samples were also analyzed for 16 PAHs.

The researchers found that dietary exposure was the dominant exposure route with the greatest amounts of OH-PAH excretion and PAH intake. Compared with inhalation intake, dermal intake of low-molecular-weight PAHs was greater for atmospheric PAHs. After 2.5-hour exposure, the net excreted amounts of OH-naphthalene, OH-fluorene, OH-phenanthrene, and OH-pyrene were 367, 63, 98, and 28 ng, respectively, with dermal absorption and 453, 98, 126, and 38 ng, respectively, with combined dermal and . The ratios of excretion to intake via dermal absorption for fluorene, phenanthrene, and pyrene were lower than the ratios from dietary but higher than the ratios from inhalation.

"In the case of BBQ fumes, dermal absorption was a more important pathway for intake of low-molecular-weight PAHs than ," the authors write.

Explore further: Highly refined mineral oils in cosmetics

More information: Abstract/Full Text (subscription or payment may be required)

Related Stories

Highly refined mineral oils in cosmetics

July 3, 2018
According to the EU cosmetics regulation, mineral oils are only permitted in cosmetics if the full refining history is known and the starting material is not carcinogenic, or if the distillate was tested using specific methods ...

Some chemicals in smoke may be even more dangerous than previously thought

November 30, 2017
It's no surprise that chemicals in smoke cause cancer, but a new study published in the Archives of Toxicology shows that some chemicals in cigarette smoke and industrial processes may be more dangerous than previously thought. ...

Recommended for you

Engineered enzyme eliminates nicotine addiction in preclinical tests

October 17, 2018
Oct. 17, 2018—Scientists at Scripps Research have successfully tested a potential new smoking-cessation treatment in rodents.

Self-lubricating latex could boost condom use: study

October 17, 2018
A perpetually unctuous, self-lubricating latex developed by a team of scientists in Boston could boost the use of condoms, they reported Wednesday in the journal Royal Society Open Science.

How healthy will we be in 2040?

October 17, 2018
A new scientific study of forecasts and alternative scenarios for life expectancy and major causes of death in 2040 shows all countries are likely to experience at least a slight increase in lifespans. In contrast, one scenario ...

Study finds evidence of intergenerational transmission of trauma among ex-POWs from the Civil War

October 16, 2018
A trio of researchers affiliated with the National Bureau of Economic Research has found evidence that suggests men who were traumatized while POWs during the U.S. Civil War transmitted that trauma to their offspring—many ...

Father's nicotine use can cause cognitive problems in children and grandchildren

October 16, 2018
A father's exposure to nicotine may cause cognitive deficits in his children and even grandchildren, according to a study in mice publishing on October 16 in the open-access journal PLOS Biology by Pradeep Bhide of Florida ...

Many supplements contain unapproved, dangerous ingredients: study

October 13, 2018
(HealthDay)—U.S. health officials have issued more than 700 warnings during the last decade about the sale of dietary supplements that contain unapproved and potentially dangerous drug ingredients, new research reveals.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.