Laboratory and Field Testing of an Automated Atmospheric Particle-Bound Reactive Oxygen Species Sampling-Analysis System

Table 4

Summary of previous particle-bound ROS studies.

Location	Concentration (nmol H2O2/m^3-air)	Period	Reference
Flushing, NY, USA	0.87 ± 0.18	Jan-Feb 2004	[13]
Singapore traffic	15.10 ± 0.10	Dec 2005	[21]
Singapore ambient	5.71 ± 2.30	Dec 2005 (10 am–1 pm)	[21]
Taipei, Taiwan	0.54 ± 0.40	Jul–Dec 2000	[18]
Rubidoux, CA, USA	5.90 ± 1.70	July 2003	[12, 22]
Rochester, NY, USA	8.30 ± 2.19	Aug 2009	This study