Fig. 1
From: Evaluation of the genotoxicity of PM2.5 collected by a high-volume air sampler with impactor
Schematic of PM2.5 impactor for high-volume air sampler (HV-1000 PM 2.5 impactor).① Base of impactor, ②; filter with slits, ③; Nozzle, ④; Washer, ⑤; Nut