Abstract
Polycyclic aromatic hydrocarbons (PAHs) are known to be toxic, mutagenic and carcinogenic. With extensive and persistent existence, polycyclic aromatic hydrocarbons can easily accumulate in the human body, posing a great risk to human health. With more and more studies on PAHs, it is essential to analyse hotspots and indicate emerging trends as well. The bibliometric study on PAHs in environment was analysed the papers by the method based on the CiteSpace, which published during the period of 2005-2020 in Web of Science database. The results indicated that the trend of this field is “pollution sources of polycyclic aromatic hydrocarbons”. And “PM2.5, health risk, impact, source identification” have become hot spots. The keywords with the strongest citation bursts are including toxicity, spatial distribution, health risk, pm2.5. There are many cross clusters links among organochlorine peptides, biodegradation, particle, positive matrix factorization.
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