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 (bĕn′zō-pī′rēn′, -pī-rēn′)
Either of two polycyclic aromatic hydrocarbons with the formula C20H12, found in coal tar and cigarette smoke and isolatable as a white or yellow crystalline solid. Both are hazardous, and one is known to be a potent carcinogen. Also called benzpyrene.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˌbɛn zoʊˈpaɪ rin, -paɪˈrin)

a yellow, crystalline, aromatic hydrocarbon, C20H12, produced by incomplete combustion of organic material, as coal, petroleum, or tobacco.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Furthermore, our results suggest that the vascular dysfunction observed in these women is associated primarily to exposure to biomasses, which has the capacity to carry on their surfaces, toxic chemicals in certain cases (benzopyrenes) and by their small size, allowing them to cross the capillary-alveolar membrane and to be found in the blood.
[2] Tobacco smoke contains multiple classes of established carcinogens including benzopyrenes, polycyclic aromatic hydrocarbons, and tobacco-specific nitrosamines.
(10) Broiled meat was the source of benzopyrenes, heterocyclic amines, and polynuclear hydrocarbons, chemicals that certainly sounded dangerous.
Parsley's volatile oils can also help neutralize certain types of carcinogens, such as benzopyrenes, which are the toxic chemicals found in smoke from cigarettes and charcoal grilled foods.
Some may find it innocuous, but the rising and spreading smoke between you and the smoker is charged with thousands of poisonous chemical substances like tar, nicotine, carbon monoxide, formaldehyde, arsenic, nitrides, benzopyrenes, phenols and hydrogen cyanide to mention a few, causing health hazards to smokers and non-smokers.
Interventions for Lymphedema Recommended for Practice * Complete decongestive therapy * Compression bandaging * Infection treatment Likely to Be Effective * Maintaining optimal body weight * Manual lymph drainage Benefits Balanced With Harms * Exercise * Prophylactic antibiotics for recurrent infections * Surgical intervention Effectiveness Not Established * Compression garments * Hyperbaric oxygen * Low-level laser therapy * Nanocrystalline silver dressing on lymphatic ulcers * Pneumatic compression pump * Simple lymphatic drainage with aromatherapy Not Recommended for Practice * Diuretics * Benzopyrenes Note.