Role of the Periphytic Biolayer in Mediating the Transfer and Transformation of PCBs within Stream Sediments

这一奖项旨在支持对河流沉积物的寄生生物层在多大程度上介导多氯联苯的转移和转化以及确定其转化和/或生物积累和/或转化的速率进行初步研究。将进行的研究将包括利用实验室规模的人工河流来评估河流间的变化，完善测定沉积物和周围植被层中多氯联苯的技术规程；并获得这些层在传递过程中作用的初步数据。该奖项的提案是根据NSF 90-121项目公告“女性科学家和工程师研究计划资助和职业发展奖”提交的。预计这一规划阶段的结果将用于制定一份完整的研究提案，以考虑国家科学基金会的进一步支持。

This is an award to support preliminary research on the extent to which the pheriphytic biolayer of stream sediments mediates the transfer and transformation of polychlorinated biphenyls and to determine rates of their transformation and/or bioaccumulation and/or transformation. The research to be conducted will involve use of laboratory-scale artificial streams to assess interstream variability, to refine the technical protocols for determination of polychlorinated biphenyls in the sediment and periphytic layers, and to obtain preliminary data on the function of these layers in the transfer process. The proposal leading to this award was submitted in response to the Program Announcement NSF 90-121, Research Planning Grants and Career Advancement Awards for Women Scientists and Engineers. Results of this planning phase are expected to be utilized in developing a full research proposal for consideration of further support by the National Science Foundation.