摘要
用β射线衰减法和重量法同步测定了2005年乐清市环境空气中PM10日均浓度,实验覆盖了乐清市的各种气象条件和PM10的浓度变化范围,具有一定的代表性。实验结果表明:在同一监测条件下,两种方法的测定结果具有一致性和可比性,β射线衰减法测得的PM10比重量法高,年均值偏高23%;两种方法测得的PM10高度相关,相关系数为0.994,能用回归直线来描述两者之间的关系。
The daily average concentration of PM10 in the ambient air of Yueqing in 2005 were measured by both the D-attenuation method and the gravimetric method. The samples were representative since they covered all types of weather conditions as well as a broad range of PM10 concentration. The PM10 obtained by the two methods were consistent and highly correlatable （correlation coefficient=0. 994） the measurements by the D-attenuation method were on the average 23% higher than those by the gravimetric method.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2007年第2期138-140,共3页
Environmental Pollution & Control
