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. Author manuscript; available in PMC: 2014 Jul 15.
Published in final edited form as: Sci Total Environ. 2014 Apr 27;487:82–90. doi: 10.1016/j.scitotenv.2014.03.138

Figure 1.

Figure 1

Field locations for dust monitoring in Green Valley, AZ, USA. Pecan North and Pecan South are located on the edge of a pecan tree grove and beside a dry river bed; Wastewater is located beside the same river bed; PDEQ represents an urban sample; 10 Mile is approximately 10 miles (16 km) from mining activities; HQ (Santa Rita Experimental Range) represents a natural background site chosen for the region. Annual data were taken from Green Valley Fire. Mining activities for the region are labeled in blue.