0LR(1980)27(12)
B. Chemical Oceanography
act as an efficient scavenger of cadmium discharged to seawater. Water Research Institute, Nagoya University, Chikusa-ku, Nagoya 464, Japan. (bwt) 80:5841 Lebel, J. and E. Pelletier, 1980. Contribution a l'etude du p H et de la saturation en calcite dans l'estuairedu St-Laurent (Canada). [St. Lawrence Estuary, Canada: pH and calcite saturation.]Atmos. Ocean, 18(2): 154-167.
Using recent analytical data on carbonate alkalinity and dissolved calcium in the St. Lawrence Estuary, pH variations and dissolved carbonate concentrations have been modelled. The model shows that 'pH does not vary linearly with salinity' but is related to seasonal fluctuations of inorganic carbon in the incoming fresh waters. Department d'Oceanographie, Universite du Quebec a Rimouski, Rimouski, Quebec, Canada. (bwt) 80:5842
Zhang, Zhengbin and Qiang Wang, 1979. A kinetic study of the inorganic ion exchange of minor elements in seawater: i~dm-progressive model. (In Chinese; English summary.) Acta oceanol, sin., 1(2): 227-242. Experiments were conducted on 'U(VI)-hydrous titanium oxide systems under conditions of concentrated U(VI) and on magnetic field effects on the reaction of U(VI) with hydrous titanium oxide in seawater.' The 'comparatively complete' filmprogressive model shows a good quantitative relationship with B.A.M. theory. Department of Oceanological Chemistry, Shandong College of Oceanology, People's Republic of China. (izs) 80:5843 Zhou, Jiayi, Wanying Qian, Minguang Liu, Yuting Wei and Guiju Liu, 1980. M a r i n e environmental geochemistry. I. The valency state of chromium in seawater and the seawater-sediment chromium interchange. (In Chinese; English summary.) Oceanol. Limnol. sin., 11(1): 30-45. Analyses of coastal sediment, water and particulate samples revealed: (1) Cr(HI) as the predominant species; (2) a relationship between Cr species and environmental pH and Eh; (3) higher concentrations of particulate Cr near shore; (4) no Cr(VI) adsorption by suspended sediments but considerable (97%) Cr(III) adsorption; (5) at most, a 6.1 ppb release of Cr from polluted sediments; and (6) seawater self-purification via the reduction of industrial waste Cr(VI) to Cr(III) by organic matter followed by particulate adsorption of Cr(III) and ultimate settlement of the particulates
857
to the bottom. A method for the differential analysis, at the ppb level,of dissolved Cr(III)and Cr(VI) in sea and natural water is presented. Department of Marine Chemistry, Shandong College of Oceanology, People's Republic of China. (izs)
5. Salinity, chlorinity and electrical conductivity 80:5844 Fujiwara, Shizuo, 1979. The basis of the concentration of salt in seawater. Geochem. J., 13(5): 225-226. This short note presents a discussion of mechanisms necessary to explain the constancy of salt concentration (0.6 M) in seawater. Department of Chemistry, Faculty of Science, The University of Tokyo, Hongo, Tokyo 113, Japan. (bwt)
6. Dissolved gases 80:5845 Park, Chung Kil, 1979. On the distribution of dissolved oxygen off the east coast of Korea. (In Korean; English abstract.) J. oceanol. Soc. Korea, 14(2): 67-70. No clearly defined oxygen minimum layer was detected during the year, indicating rapid vertical transport and replenishment; dissolved oxygen ranged from 5.1-6.0 mL/L. National Fisheries University, Busan, Korea. (sir)
9. Nutrients 80:5846 Cociasu, Adriana and Lucia Popa, 1978. Contributions a la connaissance de la dynamique des phosphates et des silicates des eaux marines du littoralroumain de la Mer Noire. [Phosphate and silicate dynamics of the Romanian coastal waters of the Black Sea, 1976-77.] Cercetari mar., 1978(11): 33-49. Institut Roumain de Recherches Marines, Constanta, Romania.