Dissolved lead (Pb), less than 0.2 um from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project)

<p>Dissolved lead (Pb), the Pb passing through a 0.2µm Acropak capsule filter, is reported in picomoles Pb per kg of seawater. (The sample size was quantified volumetrically at room temperature, then converted to weight units assuming a density of 1.027 g/cc.) Samples were collected on the U.S. GEOTRACES North Atlantic Zonal Transect, Legs 1 and 2, in 2010 and 2011.</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> (scroll down and expand the \"Datasets\" section).</p>