“…It has been an important disposal pathway in Australia, Europe, and China (Kakati, Ponmurugan, Rajasekaran, & Gnanamangai, 2013;Kelessidis & Stasinakis, 2012;Pritchard, Penney, McLaughlin, Rigby, & Schwarz, 2010). However, sewage sludge also contains many pathogens, heavy metals, persistent organic contaminants, and these sludgederived contaminants in soil have the potential to be accumulated by plants and animals (Harrison, McBride, & Bouldin, 1999;Singh & Agrawal, 2010;Vrkoslavová et al, 2010).…”