Environmental monitoring of the atmosphere over the Southern Ocean

The United States Department of Energy - Environmental Measurements Laboratory located in New York City has been monitoring the naturally occurring and man-made radionuclides for the past 40 years throughout the world. We have been using simple and very rugged air sampler which collect air from the surrounding environment. With this method and diverse location of sampling stations we have been able to detect with gamma counting method Beryllium 7, lead 210 as natural radionuclides and also some anthropogenic or man-made radionuclides such as Zirconium 95, Cesium 137, Cerium 144 which half-lives are fairly long. Come to visit us at: http://www.wipp.energy.gov/NAMP/EMLLegacy/index.htm and search for databases especially Surface Air Sampling Program. The Surface Air Sampling Program (SASP) database provides information on EML's archived air filter samples and sample measurements. The program was established in 1957 to track the global dispersion of radioactive debris resulting from atmospheric testing of nuclear bombs. Air filter samples were collected at locations throughout the world and analyzed for nuclear debris. In the 1980's, the program focused on the global distributions of the naturally occurring radionuclides, beryllium-7 and lead-210. The resulting database is the most comprehensive and extensive record of its kind in the world.

坐落于纽约市的美国能源部环境测量实验室（United States Department of Energy - Environmental Measurements Laboratory, EML），四十年来始终在全球范围内监测天然与人工放射性核素。本实验室采用简易耐用的空气采样器采集周边环境空气，结合该采样方法与遍布全球的采样站点，通过伽马计数法成功检出天然放射性核素铍7（Beryllium 7）、铅210（Lead 210），以及锆95（Zirconium 95）、铯137（Cesium 137）、铈144（Cerium 144）等半衰期较长的人工放射性核素。
欢迎访问：http://www.wipp.energy.gov/NAMP/EMLLegacy/index.htm，检索表面空气采样计划（Surface Air Sampling Program, SASP）数据库。
该数据库收录了本实验室存档的空气滤膜样本与样本检测相关信息。本项目始建于1957年，旨在追踪核弹大气试验产生的放射性尘埃的全球扩散情况。
研究人员在全球各地采集空气滤膜样本，并针对放射性尘埃开展分析。
20世纪80年代起，该项目的研究重点转向天然放射性核素铍7、铅210的全球分布特征。
目前，该数据库是全球同类记录中最为全面且详尽的数据集。