<unk> s, also called<unk> s, are organic<unk> s that contain carbon bonded to bromine. The most pervasive is the naturally produced bromomethane. One prominent application of synthetic<unk> s is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine. A variety of minor<unk> s are found in nature, but none are biosynthesized or required by mammals.<unk> s have fallen under increased scrutiny for their environmental impact.
Organobromine compound
Organochlorine compound
Loline alkaloid
Dioxins and dioxin-like compounds
Polycyclic aromatic hydrocarbon
Polychlorinated dibenzodioxins
Corrosive substance
Polychlorinated naphthalene