Surface arsenic, antimony speciation, and alkaline phosphatase activity along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04, KN199-05 cruises in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project)

<p>Data for the concentrations of the dissolved (&lt;0.4 µm) arsenic species: total inorganic As (III+V), arsenite (AsIII), arsenate (AsV), monomethyl As, and dimethyl As; and the activity of the enzyme alkaline phosphatase (unfiltered) on the surface transect.</p> <p>Modification history:&nbsp; Data were updated 3 January 2013</p> <p>Please note that some US GEOTRACES data may not be final, pending intercalibration results and further analysis. If you are interested in following changes to US GEOTRACES NAT data, there is an RSS feed available via the BCO-DMO <a href=\"http://www.bco-dmo.org/project/2066\">US GEOTRACES project page</a>&nbsp;(http://www.bco-dmo.org/project/2066; scroll down and expand the \"Datasets\" section).</p>本数据集涵盖溶解态（粒径<0.4μm）砷形态的浓度数据：总无机砷(III+V)、亚砷酸盐(AsIII)、砷酸盐(AsV)、一甲基砷与二甲基砷；以及未过滤样品中碱性磷酸酶（alkaline phosphatase）在表层断面上的酶活性。 修改历史：本数据集于2013年1月3日完成更新。 请注意，部分US GEOTRACES数据尚未最终定稿，尚需等待交叉校准结果及进一步分析。若您希望关注US GEOTRACES NAT数据的更新动态，可通过BCO-DMO的US GEOTRACES项目页面（http://www.bco-dmo.org/project/2066；下滑并展开"数据集"板块）获取RSS订阅源。