“…As illustrated in Table 2, the average total PAH concentration at NAEO was similar to the background site Mountain (MT). Waliguan (the Global Climate Observing System of the World Meteorological Organization in tropical zone) (Cheng, 2006) and rural site in Italy (Perrone et al, 2012), and also higher than the high mountain regions in Europe (Fernandez et al, 2002), MT Taishan (Li et al, 2010), while lower than those found in other urban or suburban sites such as Guangzhou (Li et al, 2006), Shanghai (Chen et al, 2011), Beijing (Zhou et al, 2005), Hong Kong , Seoul in Korea (Park et al, 2002). Eastern China is a significant source of atmospheric PAHs (Zhang et al, 2011).…”