“…Analysis of evidence suggests that there were studies on nZVI (Canivet et al, 2015, Jessick et al, 2013, Kim et al, 2014a, Kim et al, 2014b, Li et al, 2015, Ag (Ardakani, 2013, Barrena et al, 2009, De La Torre-Roche et al, 2013, Dimkpa et al, 2013, Feng et al, 2013, García-Sánchez et al, 2015, Geisler-Lee et al, 2012, Gubbins et al, 2011, Jo et al, 2015, Kaveh et al, 2013, Krishnaraj et al, 2012, Kumari et al, 2009, Larue et al, 2014, Musante and White, 2012, Mustafa et al, 2015, Nair and Chung, 2014, Parveen and Rao, 2014, Pokhrel and Dubey, 2013, Qian et al, 2013, Sharif et al, 2013, Song et al, 2013, Stampoulis et al, 2009, Syu et al, 2014, Thuesombat et al, 2014, Yin et al, 2011, Yin et al, 2012, Cu (Lee et al, 2008, Musante and White, 2012, Pradhan et al, 2015, Shah and Belozerova, 2009, Stampoulis et al, 2009, Au (Barrena et al, 2009, Gopinath et al, 2014, Kumar et al, 2013, Shah and Belozerova, 2009…”