Baseline concentrations of strontium and 90Sr in seawater from the northern Gulf

Highlights

  • This is the first baseline for strontium and 90Sr from northern Gulf.
  • The total strontium concentration is much higher than reported for other oceans.
  • The Sr/salinity ratio correlates well with global averages.
  • High Sr might be due to increased salinity/CaCo3 dissolution in acidifying Gulf waters.

Baseline concentration of strontium and Sr-90 in Gulf is presented. The strontium concentration is much higher than reported for other oceanic waters, while the Sr-90 concentration is low at 0.7–1.0 mBq l−1, that represents the background level following nuclear tests and can be used as an effective tracer in case of any radioactive release in the region. The strontium concentration is primarily related to the increasing salinity off the Gulf coast.

Uddin S., Al Ghadban A. N. & Behbahani M., in press. Baseline concentrations of strontium and 90Sr in seawater from the northern Gulf. Marine Pollution Bulletin. Article (subscription required).


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