TRANSPORT PROCESS OF POLLUTANTS IN THE SOUTHERN YELLOW SEA

1997年8月，在黄海南部和中国东海水域，在研究船Shinyo Maru上进行的巡航期间，对叶绿素a、浊度和卤烃进行了研究，该水域显示出相对较高的水柱植物生产力。在29 ° N ~ 30 ° N的2个断面上沿着布设11个站位，最大取样深度从16号站的98 m到11号站的1159 m。CTD系统还配备有氧传感器和原位荧光计（Aquatracka，Chelsea Environmental Instruments）。在1997年的陆架-陆架边缘调查中，在128.00 ° E的西部内陆架观测到叶绿素a浓度较高，而近岸海水盐度相对较低，结合1995年和1997年的叶绿素和浊度资料，通过对东海海域卤烃浓度分布的研究，在水柱中具有相对高的植物生产力，作为天然卤烃源。1997年8月期间，检测到水中的卤化碳浓度很高。东海海水中卤烃的分布特征及卤烃之间的相关性表明，东海海水中卤烃存在一定的来源。

The research for chlorophyll a, turbidity and halocarbon was carried out during the cruise conducted on board the research vessel Shinyo Maru during August, 1997 in the Southern Yellow Sea and East China Sea area that exhibits relatively high plant productivity in the water column. The sampling sites were 11 stations along 2 sections between 29ﾟN and 30ﾟ N.The maximum depths of sampling stations were from 98 m at Sta.16 to 1159m at Sta.11.Water samples were collected fron 6 depths at each station with a CTD-rosette sampler fitted with 12 Niskin sample bottles of 1.5 1 volume (General Oceanics). The CTD system was also equipped with a oxygen sensor and in situ fluorometer (Aquatracka, Chelsea Environmental Instruments). During 1997 survey at the region from the shelf to the shelf edge, the higher chlorophyll a concentration which had relatively low salinity in the continental coastal water was observed on the inner shelf of western part of 128.00ﾟ E.By combining the 1995 and 1997 chlorophyll and turbidty data, suggesting the the seaward transport of rich nutrients and particles from the Changjiang River estuary develop.Distribution of halocarbon concentrations in the East China Sea was examined to evaluate this oceanic area, with relatively high plant productivity in the water column, as a natural halocarbon source. The high concentrations of halocarbons in water were detected during August 1997. Both distributions of halocarbons and correlations among halocarbons showed that there was some sources of halocarbons of seawater in the East China Sea.