@article{187346,
  author = {Pan S. Zhang W. Tims S.G. Liu Z. Huang Y.},
  title = {The source and reference inventory of 239+240Pu in the soil of China},
  abstract = { This study used the large existing database on~137Cs reference~inventories, according to the~radioactivity~ratio of~137Cs/239+240Pu (32.5,~137Cs radioactivity is corrected to 2005) in the Northern Hemisphere, and converted~137Cs reference inventories to the corresponding values for~239+240Pu. The~137Cs Reference Inventory Model for Mainland~China~(137Cs-RI MCM) had been used to establish an analogous, by using~Kriging/Cokriging interpolation to simulate the~spatial distribution~of the Pu-RI in the soils across China. At present, the measured~deposition~inventories for~239+240Pu range from 7.3 to 546 Bq/m2and Pu-RI simulated values range from 3 to 812 Bq/m2. Maxima in the deposition inventory correlated well with those of the Pu-RI~simulation, which suggested the~137Cs-RI MCM has potential for the simulation of the Pu-RI in the soils of the mainland of China. In-homogeneity in the atmospheric deposition of~137Cs and~239+240Pu however lead to deviations between the local Pu-RI simulation values and the measured~137Cs/239+240Pu radioactivity ratios present in Chinese~soil~cores. In order to better illustrate the feasibility of the~137Cs-RI MCM, this study compared theoretical wet deposition inventories of~239+240Pu with the corresponding Pu-RIs in 62 cities of China between latitudes 30-40{\textdegree}N, this showed that the theoretical calculations of Pu-RI or total deposition inventories and wet deposition inventories were reasonable. },
  year = {2018},
  journal = {China Environmental Science},
  url = {http://manu36.magtech.com.cn/Jweb_zghjkx/EN/article/showTenYearOldVolumn.do},
  language = {eng},
}