Investigation on the Properties and Distribution of Air Voids in Porous Asphalt with Relevance to the Pb(II) Removal Performance

Table 3

Preparation of synthetic rainwater for this study.

Target pollutant	Concentration in literature	Chemical reagent	Initial concentration
Pb^2+	0.02∼0.53 (mg/L)	(1) Pb(NO3)2 (1000 mg/L); (2) Distilled water	0.50 (mg/L)