| 1. | Pine tar consists primarily of aromatic hydrocarbons, tar acids and tar bases.
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| 2. | It also contained polycyclic aromatic hydrocarbons of the kind formed by barbecuing.
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| 3. | "' Phenanthrenedione "'is a cytotoxic derivative of the polycyclic aromatic hydrocarbon phenanthrene.
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| 4. | Other contamination includes phthalates, lead, polycyclic aromatic hydrocarbons, DDT and heavy metals.
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| 5. | Polycyclic aromatic hydrocarbons ( PAH ), for example, are genotoxic via epoxidation.
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| 6. | Benzene is an aromatic hydrocarbon found in gasoline, diesel and other fuels.
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| 7. | However, burning at low temperatures also causes increased polycyclic aromatic hydrocarbon emissions.
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| 8. | It was only in the mid-1950s that chloracne was associated with aromatic hydrocarbons.
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| 9. | Benzene is an aromatic hydrocarbon found in gasoline and other fuels.
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| 10. | Pyrolysis of coal produces polycyclic aromatic hydrocarbons, which are known carcinogens.
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