2015 Cd As Se moss intensified samples

This “intensified” dataset for cadmium, arsenic, and selenium was collected in October 2015 around the largest cadmium hotspot revealed during initial analysis of the 2013 data. The collection of 2015 data was coordinated to occur during the same period that DEQ was collecting air quality data with a temporary air quality monitor installed near the largest cadmium hotspot. 

Comparing the 2013 and 2015 datasets is not recommended until more is known about how environmental factors, other than atmospheric pollution levels, affect contaminant concentrations in moss over time.