“…Organic solvents such as toluene, styrene, xylene, and ethyl benzene have been identified as inducing damage to the outer hair cells (OHCs) in the cochlea of experimental animals Cappaert et al, 1999;Cappaert et al, 2000;Crofton et al, 1994;Johnson & Canlon, 1994;Loquet et al, 1999;McWilliams et al, 2000;Pryor et al, 1987;Sullivan et al, 1988;Yano et al, 1992). The damage caused by these solvents in its early stages occurs in the third row of external OHCs and it then progresses toward the second and first rows.…”