Figure 6
From: Variation in Tree Species Ability to Capture and Retain Airborne Fine Particulate Matter (PM2.5)
Progression pattern of foliar PM2.5 removal by simulated rainfall (equivalent to 7.5 mm outdoor rainfall, over 15 minutes). The sampling time interval was 3 minutes. Sampling sequence from 1 to 5 represented samples taken at 3 minutes, 6 minutes, 9 minutes, 12 minutes and 15 minutes, respectively, from the start of simulated rainfall.
