Dataset: Suspended particulate total mercury and monomethylmercury across the US GEOTRACES East Pacific Zonal Transect, from cruise TN303, 2013

This dataset includes concentrations of suspended particulate total mercury and monomethylmercury from 18 full-depth stations (16 depths each), and 4 stations on the South American margin (5–8 depths). Suspended particle samples (1 and 51 µm) were collected with a multiple-unit large-volume in situ filtration system.

Location and timing: October–December, 2013 from Manta, Ecuador to Papeete, Tahiti.

The section included stations between 10–15 °S from the Peru margin to 152 °W north of Tahiti. Samples were collected from the surface at 2 m to the ocean floor, as deep as 5500 meters. The section captured a buoyant hydrothermal vent plume extending over 4000 km west from the East Pacific Rise.