Biogeochemical Cycling and Air-Sea Exchange of Mercury in the South Atlantic

小行星9530526 该项目是政府间海洋学委员会（海委会）海洋基线痕量金属研究的一部分。 主要目的是获取有关汞在赤道和南大西洋沃茨和大气中的分布、形态和生物化学循环的必要数据。 实地方案将在1996年5月/6月间海委会“克诺尔”号前往西大西洋这些区域的巡航中进行。 该研究包括在船上收集总汞、颗粒汞和汞种类（即，空气和水中的汞（活性汞、元素汞和甲基化汞）、船上汞分析以及旨在研究公海沃茨中元素汞和甲基化汞的生物和非生物来源的培养实验。 航行后的活动将包括分析储存的样品和进行更多的培养实验。 这项研究的目的是补充和扩展最近在北大西洋进行的汞调查（1993年8月），这些调查是国际海洋学委员会基线痕量金属研究的一部分，也是早期在太平洋进行的汞研究的一部分。 ***

9530526 Mason This project is proposed as part of Intergovernmental Oceanographic Commission (IOC) Baseline Trace Metal Study of the oceans. The primary objective is to obtain needed data for the distribution, speciation and biogeochemcial cycling of Hg in the waters and atmosphere of the equatorial and South Atlantic Ocean. The field program will be conducted on the IOC cruise of the R.V. Knorr to these regions in the western Atlantic during may/June 1996. The research involves shipboard collections for total Hg, particulate and Hg species (i.e., reactive, elemental and methylated Hg) in air and water, on-board Hg analyses, and incubation experiments designed to study the biotic and abiotic sources of elemental and methylated Hg in the open ocean waters. Post cruise activities will include analyses of stored samples and additional incubation experiments. This research is designed to complement and extend recent investigations of Hg in the North Atlantic Ocean (August, 1993) that were part of the IOC Baseline Trace Metal Study, and earlier Hg studies in the Pacific Ocean. ***