... as cis- and trans-chlordane, trans-nonachlor, and DDE were present at low concentra-tions ranging from 1.8 to 10 pg/L. The presence of these pesticides is not surprising because of their nearly ... because of their constant input into the basin (Daughton and Ternes, 1999). Of the chemicals iden-tified, para-cresol is a known estrogen-mimic (Nishihara and others, 2000). In addition to para-cresol, ... E.T., and Holmes, J., 2008, Investiga-tion of organic chemicals potentially responsible for mortality and intersex in fish of the North Fork of the Shenandoah River, Virginia, during spring of...