Atmospheric Fluoroform (CHF3, HFC-23) at Cape Grim, Tasmania
        
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*** Source: D. E. Oram(1), W. T. Sturges(1), S. A. Penkett(1),        ***
*** A. McCulloch(2), and P.J. Fraser(3)                               ***
***                                                                   ***
***     1School of Environmental Sciences, University of East Anglia, ***
***      Norwich NR4 7TJ, United Kingdom                              ***  
***                                                                   ***
***     2ICI Chemicals & Polymers, Ltd.,                              ***
***      Safety and Environment Department,                           ***
***      Runcorn, Cheshire WA7 4QD, United Kingdom                    ***
***                                                                   ***
***     3CRC for Southern Hemisphere Meteorology,                     ***
***      Division of Atmospheric Research,                            ***
***      Commonwealth Scientific and Industrial                       ***
***      Research Organization, Private Bag No. 1,                    ***
***      Aspendale, Victoria 3195, Australia                          ***
***                                                                   ***
*** December 2000                                                     ***
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Date       CHF3 concentration
(decimal   (pptv)
year)

1978.318   3.13
1978.515   2.95
1978.830   3.10
1979.101   3.17
1979.123   3.15
1980.652   4.10
1982.148   4.32
1982.400   4.95
1983.583   4.53
1985.603   5.45
1985.603   5.69
1986.101   5.53
1986.101   5.98
1986.866   6.26
1987.025   6.24
1987.405   6.22
1988.471   6.66
1989.301   7.05
1990.397   8.05
1990.964   8.07
1991.197   8.31
1991.466   8.65
1991.507   8.85
1992.044   8.68
1992.118   9.06
1992.268   8.81
1992.501   9.12
1992.729   9.30
1992.732   9.29
1993.433   9.54
1993.493   9.63
1993.611   9.53
1993.721   9.68
1994.115   9.86
1994.203   9.70
1994.321  10.02
1994.416  10.14
1994.438   9.85
1994.762  10.21
1994.934  10.41
1995.107  10.36
1995.279  10.42
1995.449  10.96
1995.896  11.08