The history of methyl chloroform emissions: 1951-2000

A complete record of annual methyl chloroform production has been compiled by combining early estimates in the technical literature (1951-1976) with a udited production data supplied by chemical manufacturers (1970-1996) and w ith production and consumption estimates provided by the countries party to the Montreal Protocol (1989 to the present). From this, a new and comprehe nsive estimate of annual emissions has been developed. However, when the at mospheric concentrations calculated from these annual emissions are compare d with measured concentrations, there are significant discrepancies, partic ularly during recent years, that merit further examination. (C) 2001 Elsevi er Science Ltd. All rights reserved.