00592pamaa2200169 4500 0000033902 20060419090000.0 1566705746 577.27 ECO 2002 QH545.A1 ECO 2002 ECOLOGICAL modeling in risk management : chemical effects on populations, ecosystems and landscapes edited by Robert A. Pastorok...[et al.]. Boca Rotan: Lewis Publishers, 2002. 302p.: ill.; 26cm. Ecological risk Simulation methods Pollution -- Environmental aspects Pastorok, Robert A