Table 3.

Mean, minimum, and maximum concentrations of mercury (mg/kg) in soil and road dust in some cities.

City or Country	Hg in Soil (mg/kg)
	Mean	Min	Max	Reference
Shanghai, China	0.361	0.078	1.362	This study
Beijing, China	0.3	0.022	9.4	Chen et al. (2010) [53]
Guangzhou, China	0.334	0.025	3.32	Chen et al. (2012) [54]
Shenzhen, China	0.09	0.017	0.02	Chen et al. (2012) [54]
Wuhan, China	0.207	0.024	2.844	Fang et al. (2011) [55]
Slovenia	0.106	0.012	5.293	Gosar et al. (2016) [56]
San Luis Potosí, México	0.45		2.34	Perez-Vazquez et al. (2015) [57]
South Carolina, U.S. (resident)	0.024		0.22	Liu et al. (2010) [58]
Athens, Greece	0.166	0.01	1.08	Kelepertzis et al. (2015) [59]
	Hg in road dust (mg/kg)
Shanghai, China	0.596	0.210	2.184	This study
Beijing, China	0.16	0.04	0.78	Men et al. (2018) [60]
Nanjing, China	0.12	0.05	0.34	Hu et al. (2011) [61]
Huainan, China	0.16	0.02	0.56	Zheng et al. (2015) [62]
Nanning, China	0.338	0.045	0.804	Lin et al. (2018) [63]
Xiamen, China	0.28	0.034	1.4	Ying et al. (2009) [64]
Baoji, China	1.11	0.48	2.32	Lu et al. (2009) [25]
Brno, Czech Republic		0.03	2.67	Coufalík et al. (2014) [65]
Luanda, Angola	0.13	0.03	0.57	Ferreira-Baptista et al. (2005) [40]
Kavala, Greece	0.13		3.3	Christoforidis et al. (2009) [66]
Tijuana, México	0.1		0.3	Qui~nonez-Plaza et al. (2017) [67]