OLR (I 987) 34 ( 1 I) C. Chemical Oceanography 951

Ministry of Argic., Forestry and Fish. Arasaki, Nagai, Yokosuka 238-03, Japan.

C210. Pollution (see a lso B 3 5 0 - A t m o s p h e r i c po l lu t i on , C l l 0 - R a d i o a c t i v i t y , r ad io i so - topes , E300 -Ef f ec t s of po l lu t ion , F 2 5 0 - W a s t e d isposal )

87:6249 Balchand, A.N. and P.N.K. Nambisan, 1986. Effect

of pulp-paper effluents on the water quality of Movattupuzha River emptying into Cochin Back- waters. Indian J. mar. Sci., 15(4):253-259. Nam- bisan: School of Mar. Sci., Cochin Univ. of Sci. and Tech., Cochin 682 016, India.

87:6250 Bums, K.A. and J.-P. Villeneuve, 1987. Chlorinated

hydrocarbons in the open Mediterranean eco- system and implications for mass balance cal- culations. Mar. Chem., 20(4):337-359.

This paper presents results of hydrocarbon analyses of deep water profiles, sediments and their asso- ciated surface flocculent layers, and zooplankton samples collected in the western basin. Most of the flux of hydrocarbons to sediments is carried on rapidly settling large particles. A yearly flux rate of PCBs to the open sea sediments was estimated as 13 #g m 2yr ~ or less than half that measured in a coastal sediment trap experiment. A partial mass balance budget computed for this semi-enclosed sea showed that about 35% remains suspended in the water column while the majority of residues are deposited in coastal sediments. However in the open sea, the deep water column may contain up to 70% of the total inventory and may be a continually increasing reservoir of stable organic contaminants reaching the ocean. Villeneuve: Internatl. Lab. of Mar. Radioactivity, Musee Oceanogr., Monaco.

87:6251 Chen, Shumei, Zhifeng Lin and Minji Lin, 1986.

Distribution of BHC and DDT concentration in the upper sediment layer of the Xiamen Harbour. Taiwan Strait, 5(1):32-37. (In Chinese, English abstract.) Third Inst. of Oceanogr., SAO, Xiamen, People's Republic of China.

87:6253 Daling, P.S. and R.G. Lichtenthaler, 1986/87.

Chemical dispersion of oil. Comparison of the effectiveness results obtained in laboratory and small-scale field tests. Oil chem. Pollut., 3(1):19- 35.

Two series of small-scale sea trials were initiated by the Norwegian Oil Pollution Control-Research and Development Program. The field tests comprised the application of seawater-diluted dispersants as well as neat application from a boat. A total of six dispersants were tested on four oil types. An attempt was made to correlate the field test results with three laboratory test methods. Results showed poor cor- relation between effectiveness results obtained from three different laboratory test systems, and between results from field and laboratory tests, but fairly good correlation between the mean results from the three laboratory tests and the field tests. The simulation of field conditions in laboratory pro- cedures needs to be improved before it will be possible to make a valid mathematical model able to predict dispersion effectiveness under given con- ditions. Methodology and reproducibility of field tests should also be improved. Continental Shelf and Petroleum Tech. Res. Inst. Ltd., IKU, P.O. Box 1883, N-7001 Trondheim, Norway.

87:6254 Franklin, F.L. and R. Lloyd, 1986/87. The rela-

tionship between oil droplet size and the toxicity of dispersant/oii mixtures in the standard MAFF 'sea' test. Oil chem. Pollut., 3(1):37-52.

Dispersants intended for use in United Kingdom waters must be licensed under the Dumping at Sea Act, 1974. As part of the licensing procedure a dispersant must pass the M A F F 'sea' toxicity test, which assesses its effects on the toxicity of a standard oil to brown shrimps in stirred tanks in the laboratory. As an adjunct to this work the distri- bution of oil droplet sizes produced by 21 disper - sants in this test have been determined using a Coulter Counter; the results obtained are described and relationship between oil droplet size and toxicity discussed. MAFF, Fish. Lab., Remembrance Ave., Burnham-on-Crouch, Essex CM0 8HA, UK.

87:6252 Cossa, D. and J. No~l, 1987. Concentrations of

mercury in near shore surface waters of the Bay of Biscay and in the Gironde Estuary. Mar. Chem., 20(4):389-396. IFREMER, Centre de Nantes, BP 1049, F-44037, Nantes Cedex 01, France.

87:6255 Hall, Aristides, A.C. Duarte, M.T.M. Caldeira and

M.P.B. Lucas, 1987. Sources and sinks of mercury in the coastal lagoon of Aveiro, Portugal. Sci. total Environment, 64(1-2):75-87. Dept. of Chem., Univ. of Aveiro, 3800 Aveiro, Portugal.