Research has shown that grilling, barbecuing and smoking meat and fish increases levels of carcinogenic Polycyclic aromatic hydrocarbons ( PAH ).

* Polycyclic aromatic hydrocarbons

Polycyclic aromatic hydrocarbons ( PAH ) found in Manila Bay sediments have been influenced by human activities.

# REDIRECT Polycyclic aromatic hydrocarbon

Also, toxic compounds called PAHs, or Polycyclic aromatic hydrocarbons, are formed by cooking.

Category: Polycyclic aromatic hydrocarbons

* Polycyclic aromatic hydrocarbons

* Polycyclic aromatic hydrocarbons

Polycyclic aromatic hydrocarbons and phthalocyanine salt crystals are examples of this type of organic semiconductor.

*: Category: Polycyclic aromatic compounds are fused aromatic rings and may contain heteroatoms.

** Category: Polycyclic aromatic compounds contains: Category: Polycyclic aromatic hydrocarbons.

Polycyclic aromatic compounds, are chemical compounds that contain at least three fused aromatic rings that may include heteroatoms like N, O, and S and that may carry substituents.

Polycyclic aromatic hydrocarbons are organic compounds that contain at least three fused benzene rings and that may carry additional substituents or contain additional fused hetero-aromatic rings.

Category: Polycyclic aromatic compounds

Polycyclic aromatic compounds can be found in: Category: Polycyclic_aromatic_compounds.

Polycyclic aromatic hydrocarbons can be found in: Category: Polycyclic_aromatic_hydrocarbons.

* Polycyclic aromatic hydrocarbons ( PAHs )

* Polycyclic aromatic hydrocarbons ( PAH )

Polycyclic aromatic hydrocarbons, long carbon-chain molecules, and fullerenes are all potentially important.

Category: Polycyclic aromatic hydrocarbons

Polycyclic aromatic hydrocarbons or graphenes — including fullerenes, carbon nanotubes, and graphite — have a hexagonal structure that is often described as chicken wire-like .< ref >

Polycyclic aromatic hydrocarbons ( PAH ), for example, are genotoxic via epoxidation.

* Polycyclic aromatic hydrocarbons, a class of chemical compounds that consist of fused aromatic rings.

Category: Polycyclic aromatic hydrocarbons

Category: Polycyclic aromatic hydrocarbons

Category: Polycyclic aromatic hydrocarbons

Category: Polycyclic aromatic hydrocarbons

Category: Polycyclic nonaromatic hydrocarbons

An illustration of typical polycyclic aromatic hydrocarbons.

This type of reaction is found mainly in aliphatic hydrocarbons, and rarely in aromatic hydrocarbon.

This reaction takes place almost exclusively in aromatic hydrocarbons, where it is called electrophilic aromatic substitution.

Coal tars are complex and variable mixtures of phenols, polycyclic aromatic hydrocarbons ( PAHs ), and heterocyclic compounds, about 200 substances in all.

The residue from the distillation of high-temperature coal tar, primarily a complex mixture of three or more membered condensed ring aromatic hydrocarbons, was listed on 28 October 2008 as a substance of very high concern by the European Chemicals Agency.

# Aromatic hydrocarbons, also known as arenes, are hydrocarbons that have at least one aromatic ring.

Solutions of iodine in strong donor solvents such as acetone, tetrahydrofuran, pyridine appears brown or yellow ( λ < sub > max </ sub > = 460-480 nm ), while in solvents of weaker donors such as dichloromethane it appears crimson red, in aromatic hydrocarbons such as benzene and toluene it appears pink or reddish-brown.

The chemicals involved in both were later shown to be polycyclic aromatic hydrocarbons ( PAH ).

Many fungi are able to break down complex organic biomolecules such as lignin, the more durable component of wood, and pollutants such as xenobiotics, petroleum, and polycyclic aromatic hydrocarbons.

The hydrocarbons in crude oil are mostly alkanes, cycloalkanes and various aromatic hydrocarbons while the other organic compounds contain nitrogen, oxygen and sulfur, and trace amounts of metals such as iron, nickel, copper and vanadium.

Pyrolysis of burning material, especially incomplete combustion or smoldering without adequate oxygen supply, also results in production of a large amount of hydrocarbons, both aliphatic ( methane, ethane, ethylene, acetylene ) and aromatic ( benzene and its derivates, polycyclic aromatic hydrocarbons ; e. g.

The harmful effects of tobacco derive from the thousands of different compounds generated in the smoke, including polycyclic aromatic hydrocarbons ( such as benzpyrene ), formaldehyde, cadmium, nickel, arsenic, radioactive polonium-210, tobacco-specific nitrosamines ( TSNAs ), phenols, and many others.

Studies have shown that cooking beef, pork, poultry, and fish at high temperatures can lead to the formation of heterocyclic amines, benzopyrenes, and polycyclic aromatic hydrocarbons, which are carcinogens.

The smoking process contaminates food with polycyclic aromatic hydrocarbons ( PAHs ), which are known carcinogens, so, in theory, consuming smoked food increases the risk of gastrointestinal cancer.

Contaminants that are found in the tissues of marine mammals include heavy metals such as mercury and lead ; organochlorides ; and polycyclic aromatic hydrocarbons.

Bedding made from red cedar ( Eastern or Western ) and pine, both softwoods, were commonly used in the past, however these materials are now believed to contain harmful phenols ( aromatic hydrocarbons ) and oils.

Evidence of polycyclic aromatic hydrocarbons ( PAHs ) have been identified with the levels increasing away from the surface.