Environmental Hazard- Assessment of chemicals and products
Environmental Hazard- Assessment of chemicals and products
复制标题
DOI：
10.1007/bf02986520
复制
发表时间：
1994-03
影响因子：
5.8
通讯作者：
W. Klöpffer
中科院分区：
文献类型：
--
作者：
W. Klöpffer
Part II: Persistence and Degradability of Organic ChemicalsThe criteria “Persistence” and “Degradability” are defined and explained, starting from the “functional” definition of the environment. In this definition, theenvironmentis the counterpart of thetechnosphere, which consists of all processes controlled by man. A substance is persistent if there are no sinks (degradation processes). It is shown that persistence is the central and most important critérium of environmental hazard assessment of organic chemicals. It follows that all substances released into the environment should be degradable, preferentially into small inorganic molecules (mineralization). As examples for persistent substances, the polychlorinated biphenyls (PCB), the chlorofluorohydrocarbons (CFC), bis (2-ethylhexyl) phthalate (DEHP), and 2,3,7,8-tetrachloro-dibenzo-dioxin (TCDD) are discussed. Finally, an attempt to quantify persistence is made.
