摘要
本文对新疆核试验场周围9个地区和3个对照区近23种主要食品中的钚含量进行了分析测定。结果表明,调查区和对照区同类食品中钚含量无显著性差异,由食入钚所致调查区和对照区居民的有效待积剂量当量分别为7.65μSV和7.22μSV,此附加剂量不会对人体健康产生不良影响。在相对应的耕作土壤中钚向植物的转移系数在0.2％～5％之间,转移系数是叶菜类>根茎类>果实类。由积分沉积密度和该地区居民膳食中钚的摄入量估算出P_(23)值,调查区为0.70B_q/m^2,对照区为0.72B_q/m^2,这一数值与UNSCEAR 1982年报告书给出的P_(23)值基本相符。
We analysed and measured the Pu content of 23 kinds of food in the 9 areas around the nuclear testing site and 3 control areas. The result revealed that there was no conspicuous difference about the Pu content of same kinds of food betwen the investigation areas and the control areas. Because of ingesting Pu,the residents' committed effective dose equivalents were 7.65 μSv and 7.22 μSv in the investiga-tion areas and the control areas respectively. The additive dose didn't affect people's health . In corresponding farmland , the Pu transfer coefficient to the plant was 0.2 -5%, in the order of leaf,stalk , and fruit . The P23 was estimated from the integral sediment density and the ingestive quantity of Pu in the residents' food, it was 0.70 Bq /m2 in the investigati on areas ; and in the 0.72 Bq/m2 in the control areas . This data nearly corresponded with the P23 which was offered in UNSCE AR Report , 1982 .
出处
《环境科学研究》
EI
CAS
CSCD
1989年第2期27-31,共5页
Research of Environmental Sciences
关键词
新疆
核试验场
食品
钚剂量
Nuclear testing site in Xinjiang, Food
Plutonium (Pu)
Dose,P23
