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Global Climate Change Digest
A Guide to Information on Greenhouse Gases and Ozone Depletion
Published July 1988 through June 1999

FROM VOLUME 7, NUMBER 7, JULY 1994

PROFESSIONAL PUBLICATIONS... HALOCARBONS: FIELD MEASUREMENTS AND NATURAL SOURCES

Item #d94jul114

"Production of Volatile Organohalogens by Phytoplankton Cultures," R. Tokarczyk (Dept. Oceanog., Dalhousie Univ., Halifax NS B3H 4J1, Can.), R.M. Moore, Geophys. Res. Lett., 21(4), 285-288, Feb. 15, 1994.

Experiments demonstrated that certain unialgal cultures of marine phytoplankton produce halocarbons such as CHBr3, CHBr2Cl, and CH2Br2.

Item #d94jul115

"Seasonal Evolution of Bromomethanes from Coralline Algae (Corallinaceae) and Its Effect on Atmospheric Ozone," N. Itoh (Eng. Faculty, Fukui Univ., Bunkyo 3-9-1, Fukui 910, Japan), M. Shinya, Marine Chem., 45(1/2), 95-103, Jan. 1994.

Experiments with algae samples explain the high levels of bromoform and dibromomethane concentrations in the Arctic troposphere in the early spring, which are involved in tropospheric ozone destruction.

Specialized Papers

Item #d94jul116

"Carbon Tetrachloride and Chlorofluorocarbons in the South Atlantic Ocean, 19°S," D.W.R. Wallace (Dept. Appl. Sci., Brookhaven Natl. Lab., Upton NY 11973), P. Beining, A. Putzka, J. Geophys. Res., 99(C4), 7803-7819, Apr. 15, 1994.

Item #d94jul117

"Secular Evolution of the Vertical Column Abundances of CHClF2 (HCFC-22) in the Earth's Atmosphere Inferred from Ground-Based IR Solar Observations at the Jungfraujoch and at Kitt Peak, and Comparison with Model Calculations," R. Zander (Inst. Astrophys., Univ. Liège, 4000 Liège, Belg.), E. Mahieu et al., J. Atmos. Chem., 18(2), 129-148, Feb. 1994.

Item #d94jul118

"Heterogeneous Chemistry of Trichloroacetyl Chloride in the Atmosphere," C. George (Chem. Dept., Univ. L. Pasteur, 67083 Strasbourg Cedex, France), J. Lagrange et al., J. Geophys. Res., 99(D1), 1255-1262, Jan. 20, 1994.

Item #d94jul119

"Distribution of Methylchloride, Dichloromethane, Trichloroethene and Tetrachloroethene over the North and South Atlantic," R. Koppmann (Inst. Atmos. Chem., Forschungszentrum Jülich, POB 1913, D-52425 Jülich, Ger.), F.J. Johnen et al., ibid., 98(D11), 20,517-20,526, Nov. 20, 1993.