What do PAHs do?
PAHs can bind to or form small particles in the air. High heat when cooking meat and other foods will form PAHs. Naphthalene is a manmade PAH used in the United States to make other chemicals and mothballs.
What are the sources of polyaromatic hydrocarbons?
Major anthropogenic sources of PAHs include residential heating, coal gasification and liquefying plants, carbon black, coal-tar pitch and asphalt production, coke and aluminum production, catalytic cracking towers and related activities in petroleum refineries as well as and motor vehicle exhaust.
What do PAHs do to humans?
PAHs generally have a low degree of acute toxicity to humans. The most significant endpoint of PAH toxicity is cancer. Increased incidences of lung, skin, and bladder cancers are associated with occupational exposure to PAHs.
What are polynuclear hydrocarbons examples?
A polynuclear aromatic hydrocarbon is a hydrocarbon made up of fused aromatic ring molecules. These rings share one or more sides and contain delocalized electrons. Another way to consider PAHs is molecules made by fusing two or more benzene rings.
Is kerosene a PAH?
Polycyclic Aromatic Hydrocarbons in Fine Particulate Matter Emitted from Burning Kerosene, Liquid Petroleum Gas, and Wood Fuels in Household Cookstoves. Energy Fuels.
Where are polycyclic hydrocarbons?
Polycyclic aromatic hydrocarbons (PAHs) are a class of chemicals that occur naturally in coal, crude oil, and gasoline. They also are produced when coal, oil, gas, wood, garbage, and tobacco are burned. PAHs generated from these sources can bind to or form small particles in the air.
How are PAHs formed?
PAHs are formed as a result of incomplete combustion of carbon-containing materials, such as wood, coal, oil, gas, or biomass. They are also created in car and diesel exhaust, smoked or charbroiled food, and are present in cigarette smoke condensate, and tobacco products.
How can we prevent hydrocarbons?
The remediation of hydrocarbon polluted wastewater can be achieved by three methods, which are phytoremediation, bioremediation and chemical remediation. Phytoremediation entails the use of plants to reduce the volume, mobility and toxicity of contaminants in soil and water.
Which of these is the simplest example for polynuclear hydrocarbon?
So, the correct answer is naphthalene ( option-b )