作者: Donald W. Sparling
DOI: 10.1016/B978-0-12-801947-4.00006-8
关键词: Chemistry 、 Environmental chemistry 、 Fluorine 、 Furan 、 Organic chemistry 、 Polybrominated diphenyl ethers 、 Polybrominated Biphenyls 、 Polychlorinated biphenyl 、 Chlorine 、 Benzene 、 Halogen
摘要: In Chapter 4, we discussed the organochlorine pesticides which are one of highly persistent organic pollutants (POPs). This chapter continues our examination POPs by focusing on a few groups halogenated chemicals structurally based two benzene or phenyl rings. These include polychlorinated biphenyls (PCBs), dioxins, furans, polybrominated diphenyl ethers (PBDEs), and (PBBs). Halogenated means that all these have more halogen atoms attached to their Halogens five elements fall in group 17 periodic chart require electron complete outer valence shells. All toxic, form acids when combined with hydrogen, bond carbon is difficult break. The halogens most interested chlorine (Cl),bromine (Br), fluorine (F). PCBs, furans had long often intertwined history manufacturing, research, concern; thus, will examine them first then discuss brominated counterparts.