OLR (1985) 32 (12) C Chemical Oceanography 1007

C80. Physical chemistry in seawater

85:7005 Kumar, M.D., K. Somasundar and A. Rajendran,

1985. Stability of phosphorus species in seawater. Indian J. mar. Sci., 14(1):20-23.

Relative stabilities of various oxidation states, oxyacids and dissolved inorganic complexes of phosphorus in anoxic and oxic marine environments are elucidated. Natl. Inst. of Oceanogr., Dona Paula, Goa 403 004, India.

Cll0. Radioactivity, radioisotopes

85:7006 Levy, D.M. and W.S. Moore, 1985. 2~4Ra in conti-

nental shelf waters. Earth planet. Sei. Letts, 73(2-4):226-230.

Measurements of 224Ra off the coasts of South Carolina and Georgia reveal significant activities up to 70 km offshore. Aside from estuarine, salt marsh and nearshore sources, high near-bottom activities in stratified waters suggest that additional 224Ra is being supplied by the decay of 228Th in mid-shelf sediments (itself probably derived from decay of water column 228Ra). 224Ra is potentially a powerful tracer of water mixing on the shelf. Nuclear Data, Gulf and Meacham Rd., Schaumburg, IL 60196, USA.

85:7007 Li, Peiquan, Zhihe Liu, Guangshan Lu and Xieming

Su, 1984. The geochemical studies of U, Th, Ra, K (4°K) in sediments of Okinawa Trough. Ocean- ologia Limnol. sin., 15(5):449-467. (In Chinese, English abstract.)

Concentrations and ratios of U and Th in trough sediments are like those in sediments of the Huanghai Sea, Bo Hal Bay, East China Sea shelf and terrestrial China. U distribution was remarkably affected by redox conditions. Th, K, and Ra levels increased gradually from the outer to inner trough region following the increasing clay abundance and decreasing grain size. Inst. of Oceanol., Acad. Sin., Qingdao, People's Republic of China. (msg)

85:7008 Nair, R.N., T.M. Krishnamoorthy and T.P. Sarma,

1985. Tide induced mathematical model for coastal radioactive discharges and its application. Indian J. mar. Sci., 14(1):9-14.

A mathematical model has been developed to evaluate spatial and temporal distribution of radi- onuclide concentration from a continuous discharge

of radioactive liquid effluents into the Tarapur (India) coastal waters. All the nuclides studied except 13q attain steady state concentration more or less after the same time interval. Confinement of radionuclides parallel to the coast is significant. Limiting discharge rates vary from 7 to 50,000 Ci/d, the lowest and highest being for 239pu and 134Cs respectively. Health Phys. Div., Bhabha Atomic Res. Centre, Bombay 400 085, India.

C120. Dissolved gases

85:7009 Gu, Deyu, Xuling Yang and Weiqiang Wang, 1984.

The carbon dioxide system in the Xiamen Har- bout water [P.R.C.]. Taiwan Strait, 3(2): 144-150. (In Chinese, English abstract.) Third Inst. of Oceanogr., Natl. Bur. of Oceanogr., Xiamen, People's Republic of China.

C130. Organic compounds

85:7010 Coates, Michael, D.W. Connell and D.M. Barron,

1985. Aqueous solubility and octan-l-ol to water partition coefficients of aliphatic hydrocarbons. Environ. Sci. Technol., 19(7):628-632. Sch. of Australian Environ. Stud., Griffith Univ., Na- than, Qld. 4111, Australia.

85:7011 Guiral, Daniel, 1984. Evolution of the particulate

organic matter in an eutrophic tropical bay (Bietri Bay, Ebrie Lagoon, Ivory Coast). Revue Hydro- biol. trop., 17(3):191-206. (In French, English abstract.)

The fate of organics from industrial and domestic sources into Bietri Bay, Ivory Coast, was studied. Mineralization was shown to be an important process, and oxygen generated by algal photosyn- thesis appeared necessary for the maintenance of equilibrium at the present pollutant level. Centre de Rech. Oceanogr., BP V 18, Abidjan, Ivory Coast. (gsb)

85:7012 Hashimoto, Shinya, Kitao Fujiwara, Keiichiro Fuwa

and Toshiro Saino, 1985. Distribution and char- acteristics of carboxypeptidase activity in pond, river, and seawaters in the vicinity of Tokyo. Limnol. Oceanogr., 30(3):631-645. Fujiwara: Dept. of Chem., Univ. of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan.