Abstract:Long-term atmospheric quality monitoring of PM2.5 and PM2.5-bound polycyclic aromatic hydrocarbons (PAHs) was performed in Wuxi from 2016 to 2021. A total of 504 atmospheric PM2.5 samples were collected, and PM2.5-bound 16 PAHs were detected. The PM2.5 and ∑PAHs level decreased annually from 2016–2021, from 64.3 to 34.0 μg/m3 and 5.27 to 4.22 ng/m3, respectively. The benzo[a]pyrene (BaP) of 42% of the monitoring days in 2017 exceeded the recommended health-based standard of the European Union (EU) at 1ng/m3. F… Show more
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