Sentences with phrase «aromatic hydrocarbon found»

Previous work has indicated a strong correlation between the amount of material identified by magnetic remanence and benzo (a) pyrene, a carcinogenic polycyclic aromatic hydrocarbon found in particulates, Maher says.

• Polycyclic aromatic hydrocarbons found in tobacco smoke.

Not exact matches

Beer marinades are actually an effective way of reducing levels of polycyclic aromatic hydrocarbons (PAHs), a group of carcinogenic compounds that form on grilled meat when fats and juices interact with an open flame, finds a new study in the Journal of Agricultural and Food Chemistry.

There are over 100 polycyclic aromatic hydrocarbons (PAHs) found in oil, coal and tar, which are readily released into the environment when fossil fuels are burned.

Dr Hauptmann said: «The microbial potential to degrade anthropogenic contaminants, including polychlorinated biphenyls (PCB), polycyclic aromatic hydrocarbons (PAHs), and the heavy metals mercury and lead, was found to be widespread, and not limited to regions close to human activities.»

The research builds on earlier work by the Auke Bay Laboratories, part of NOAA Fisheries» Alaska Fisheries Science Center, which found much reduced survival of pink salmon exposed as embryos to polycyclic aromatic hydrocarbons (PAH) from crude oil.

NASA researchers triggered international headlines in 1996 when they discovered, among other possible indicators of life, traces of polycyclic aromatic hydrocarbons (multiringed carbon molecules found in living cells) along surface fractures in ALH84001.

In babies born pre-closure, researchers found higher levels of PAH - DNA cord adducts, a biomarker for exposure to polycyclic aromatic hydrocarbons, a toxic component of air pollution from coal plants.

Earlier work had shown that chemicals called polycyclic aromatic hydrocarbons (PAH), which are found in cigarette smoke, can kill mouse eggs, so the team set out to find out how PAHs do their damage.

The researchers also found much higher levels of polycyclic aromatic hydrocarbons, which are known mutagens, in particles at the polluted site, making these chemicals a leading suspect.Similar mutations have been reported in people exposed to radiation.

However, the types of organic compounds found in plant matter — dominated by aromatic hydrocarbons — underwent some chemical changes, but remained relatively resistant to impact pressures.

Some of those large molecules are like small sheets of graphite with hydrogen attached to them: we call these polycyclic aromatic hydrocarbons and they can be found in terrestrial counterparts like mothballs, for example.

By giving a single small dose of certain chemicals (aromatic polycyclic hydrocarbons) to selected strains of female rats he found he could produce, within a few weeks, malignant mammary tumors — many of which were hormone dependent — in 100 percent of the treated animals.

However, the types of organic compounds found in plant matter — dominated by aromatic hydrocarbons - underwent some chemical changes, but remained relatively resistant to impact pressures.

We have significantly detected polycyclic aromatic hydrocarbon (PAH) features from 14 out of the 18 galaxies, and thus found that the presence of PAHs is not rare but rather common in dusty elliptical galaxies.

Studies show that the polycyclic aromatic hydrocarbons have been found stored in the lymph nodes of tattooed people causing them to actually turn black.

The fumes have been found to contain polycyclic aromatic hydrocarbons (PAHs), heterocyclic amines, higher and mutated aldehydes, and fine and ultrafine particles.

More recently, the journal Cancer Epidemiology Biomarkers & Prevention published research from 2008 which found very high levels of carcinogenic polycyclic aromatic hydrocarbons (PAHs) in processed dry yerba mate leaves and in both hot and cold infusions of mate.

In a study of umbilical cord blood from New York City children, researchers found a change in a gene called ACSL3 that is associated with prenatal exposure to chemical pollutants called polycyclic aromatic hydrocarbons (PAHs), which are byproducts of incomplete combustion from carbon - containing fuels, resulting in high levels in heavy - traffic areas.

PNNL scientists found that secondary organic aerosols formed in the presence of the toxic pollutant known as polycyclic aromatic hydrocarbons (PAHs) trapped the PAH molecules inside, shielding them from degradation.

Some toxic compounds found in oil such as polycyclic aromatic hydrocarbons have been shown to cause birth defects in humans; it is conceivable that they are responsible for some of the recent stillbirths in dolphins.»

The fumes have been found to contain polycyclic aromatic hydrocarbons (PAHs), heterocyclic amines, higher and mutated aldehydes, and fine and ultrafine particles.