Also known as: PNA-
PNA has various meanings in the America category. Discover the full forms, definitions, and usage contexts of PNA in America.
PNAs or Polynuclear Aromatic Hydrocarbons, are natural constituents of crude oil, and also may be formed when organic materials such as coal, oil, fuel, wood or even foods are not completely burned. PNAs are also found in lampblack, a by-product of the historic gas manufacturing process. PNAs are found in a wide variety of other materials, including diesel exhaust, roofing tars, asphalt, fireplace smoke and soot, cigarettes, petroleum products, some foods, and even some shampoos. PNAs tend to stick to soil and do not easily dissolve in water, and generally do not move in the environment. The test method used to analyze for PNAs detects seventeen different compounds. Of the seventeen, seven are suspected of causing cancer in humans.
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