摘要
本文报道了1970年雨水总β放射性水平及对沉降物(包括雨水)总β放射性的贡献。结果表明,雨水的总β放射性活度范围在2.3～14.5Bq·L^(-1),均值为7.5Bq·L^(-1)。雨水的总β放射性活度随降雨量的增加而降低。在雨季,日降雨和月降雨的总β放射性沉降量分别为日沉降物和月沉降物总β放射性的66.8％、65.9％。
This paper discribed the gross β radioactive level in rainning water and contribution to gross β of falling ash (include rainning water). The result show that the gross β radiativity in rainning water range 2.3～14.5 Bq.1^(-2), mean value is 7.5 Bq.1^(-1). The gross β radiativity in rainning water increases with the degrading rainfall. In rainy season, the ratioes of gross β of daily rainning water and mon- thy rainning water to falling ash were 66.8% and 65.9%, respectivilly.
关键词
雨水
总Β放射性
Gross β radiativity Rainning water
