Abstract
BackgroundThe current study conducted for evaluate the contamination of various teas such as green, black, red and white, with polycyclic aromatic hydrocarbons (PAHs). Scope and approachThe databases such as Scopus, PubMed, and web of science databases from 1 January 2005–25 June 2023. Key findingsWe identified 331 articles and selected 20. The highest PAH concentrations in green tea, black tea, red tea and white tea were related to phenanthrene, pyrene and flouranthen, respectively. On the other hand, the lowest PAH concentrations found green tea, black tea, red tea and white tea were related to dibenzo(a,l) pyrene. Based on findings, the highest PAH concentrations among different teas in countries of the Asia, Europe, Africa and South America were related to Phenanthrene, chrysene, fluorine and naphthalene, respectively. While, the lowest PAH concentrations in countries of Asia, Europe, Africa and South America were attributed to phenanthrene, anthracene, benzo [k]fluoranthene and dibenz[a,h]anthracene, respectively. Moreover, carcinogenic and mutagenic risk assessment of the PAHs revealed a country-to-country variation. As a result, evaluation and control of PAHs in teas should be done.
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