Resulting from a vanguard conference originally held in 1993 at UC Dav is, this new work is divided into three sections that present methodol gies for assessing the health of an ecosystem; the effects of multiple toxicological impacts upon an ecosystem, and which tools are worth us ing to assess these dangers. Environmental scientists, chemists, toxic ologists, risk analysts, and probably the entire membership of SETAC w ill find need for this book, as will wetlands scientists, ecologists, and research biologists.