Characterization of the Key Material for Elimination of PM2.5 Particles in the Atmosphere

Table 1

The results of asphalt pavement anion test.

Sample name		Anion concentration max (a/cm^3)	Anion concentration average (a/cm^3)	Temperature °C	Relative humidity %
Rubber modified asphalt anion	Sample 1	−1190	−1076	20	50
	Sample 2	−1150	−968
Common asphalt	Sample 3	−150	−110
	Sample 4	−180	−120