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| DISSOLVED ARSENIC IN THE YELLOW RIVER ESTUARY AND THE ADJACENT COASTAL ZONE |
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| Dissolved arsenic in the Yellow River Estuary and the adjacent coastal Zone was determined in May, August and November, 1984. The following results were obtained: 1. The content of dissolved arsenic in the region of the Yellow River Estuary was lower than that of both Yellow River and the Bohai Sea waters in May. Further study would be necessary in order to understand the cause for this. 2. In August the content of dissolved arsenic in the region was higher than that responding to theoretical dilution line. It might be due to 1) the release of arsenic in association with hydrated oxides of iron and manganese from sediments to water and 2) typhoon which makes it distribute to the whole water column. 3. Distribution of dissolved arsenic in the region surveyed was considerably uniform in November, 1984. 4. The flow of dissolved arsenic from the Yellow River to the Bohai Sea was about 82.5 tons in the year 1984. |
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