| 厦门港和九龙江口区海水与沉积物中总β强度的测定 |
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| 引用本文： | 杨嘉东.厦门港和九龙江口区海水与沉积物中总β强度的测定[J].海洋科学,1986,10(2):35-38. |
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| 作者姓名： | 杨嘉东 |
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| 作者单位： | 国家海洋局第三海洋研究所 |
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| 摘 要： | 厦门位于东海之滨,是一个美丽的“海上花园”,也是一个很有发展前途的经济特区和旅游城市,因此对厦门环境的污染情况及其质量评价已引起人们的日益重视。由于大部分人工放射性同位素能放出β射线,所以通过对海洋环境样品中总β强度的测量就可以了解该海区的本底水平和是否受到放射性污染的情况。因此我们于1981年1—4月间测定了厦门港及九龙江口附近海域的海水和沉积物中总β强度。此外,还对厦门地区盛产的具有较大经济价值的水产品——牡蛎体内的总β强度进行了测定。
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THE DETERMINATION OF GROSS BETA RADIOACTIVITY IN SEA WATER AND SEDIMENT IN THE XIAMEN HARBOUR AND THE JIULONGJIANG RIVER ESTUARY |
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| Abstract: | Gross Beta radioactivity in sea water and sediment in the Xiamen Harbour and the Jiulongjiang River Estuary was determined in 1981. The value determined varies from 1.4 to 3.3 pCi/1 in sea water, with a mean activity of 1.9 pCi/1, and 3.2 to 5.3 pCi/kg·dry weight in sediment, with a mean activity of 4.0 pCi/kg·dry weight. The horizontal distributions of the gross Beta radioactivity in the sea water and the sediment showed a tendency of increase from south to north, which seemed to be correlative with the high gross Beta radioactivity in the Jiulongjiang River water and the tidal motion. |
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