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Polycyclic aromatic hydrocarbons (PAHs) refer to a class of organic compounds containing two or more benzene. Polycyclic aromatic hydrocarbons are hydrocarbons containing more than two benzene rings in their molecules, including more than 150 compounds such as naphthalene, anthracene, phenanthrene, and pyrene. Some polycyclic aromatic hydrocarbons also contain nitrogen, sulfur and cyclopentane. Common polycyclic aromatic hydrocarbons that have carcinogenic effects are mostly four- to six-ring fused ring compounds. The International Center for Research on Cancer (IARC) (1976) lists 94 compounds that are carcinogenic to experimental animals. 15 of them are polycyclic aromatic hydrocarbons. Since benzo(a)pyrene was the first environmental chemical carcinogen discovered and is highly carcinogenic, benzo(a)pyrene is often used as the representative of polycyclic aromatic hydrocarbons. It accounts for 1%-20% of all carcinogenic polycyclic aromatic hydrocarbons.
Zhongke Testing provides polycyclic aromatic hydrocarbon testing services, and the test reports have CMA&CNAS qualifications.
