Nevissi A E
Health Phys. 1985 Feb;48(2):169-74. doi: 10.1097/00004032-198502000-00003.
Monthly atmospheric flux of 210Pb in Seattle, WA, has been measured over a period of 7 yr. Direct correlation exists between monthly rainfall and the 210Pb deposition; however, for the same amount of rainfall the 210Pb deposition varies from year to year. The mean annual input of 210Pb is 0.44 dpm/cm2 and the standard error of the mean is +/- 0.24 dpm/cm2. A 4.4-fold fluctuation in the 210Pb annual flux was observed during this investigation.
在华盛顿州西雅图市,对210Pb的月大气通量进行了为期7年的测量。月降雨量与210Pb沉积之间存在直接相关性;然而,对于相同降雨量,210Pb沉积量逐年变化。210Pb的年平均输入量为0.44 dpm/cm2,平均标准误差为±0.24 dpm/cm2。在本次调查期间,观察到210Pb年通量有4.4倍的波动。