Phosgene in the ambient air

  title={Phosgene in the ambient air},
  author={Hanwant Singh},
IN recent years the atmosphere has become contaminated with a large number of halogenated compounds. Whereas inert fluorocarbons are suspect as precursors of stratospheric ozone-destroying chlorine atoms, other halocarbons, such as vinyl chloride, chloroform and trichloroethylene, have been found to be carcinogens1,2. We present here the first measurements of ambient phosgene (COCl2), and demonstrate that chloroethylenes (primarily C2Cl4 and C2HCl3), which are emitted worldwide in extremely… Expand
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