Trace metal concentrations in the surf zone and in coastal waters off Baja California, Mexico

摘要: Pronounced spatial gradients were observed in trace element concentrations (Cd, Co, Cu, and Ni) nearshore surf zone (<100 m offshore) coastal (5−45 km waters off Baja California, Mexico. The ranges of metal those 0.034−0.26 nM for Cd, 0.022−0.59 0.93−3.6 3.6−6.4 Ni. Metal exhibited offshore gradients, with the highest levels nearshore. Metal:salinity, metal:nutrient, metal:metal relationships indicated that relatively high caused by upwelling (Cd benthic particle resuspension diagenetic remobilization (Co Cu). low concentration appeared to be caused, part, intrusion oceanic from North Pacific Central Gyre, as evidenced similarities molar ratios Ag:Cu California (9.0 × 10-3) subtropical central Mexico (9.6 10-3). This was also consi...