Role of Particle Size and Soil Type in Toxicity of Silver Nanoparticles to Earthworms Shoults-Wilson, W. Aaron ; Reinsch, Brian C. ; Tsyusko, Olga V. ; Bertsch, Paul M. ; Lowry, Greg V. ; Unrine, Jason M. Abstract Publication: Soil Science Society of America Journal Pub Date: 2011 DOI: 10.2136/sssaj2010.0127nps Bibcode: 2011SSASJ..75..365S