EXPLORING ENVIRONMENTAL LEGACY ISSUES IN A RURAL COMMUNITY PARK, GREENCASTLE, IN
Soil samples were strategically collected from 15 locations within the park’s boundaries. At each sample site, 5 subsamples were collected less than 2 cm in depth and amalgamated from a 1x1 meter grid. All samples were dried and sieved to less than 180 μm and analyzed for Pb, Zn, As, and Cu using a Bruker CTX benchtop XRF unit.
Pb, Zn, As, and Cu concentrations measured in park soils are relatively low and are below EPA-defined thresholds, posing no immediate health threat to the Greencastle community. However, our spatial analysis reveals elevated Pb, Zn, As, and Cu concentrations within soil samples collected along the perimeter of the park. Thus, this pattern suggests that the elevated metal abundances found within the park are likely related to recent automobile traffic and not to the city’s historic Zn manufacturing facility.