Chromium(VI) distributions in the Arctic and the Atlantic Oceans and a reassessment of the oceanic Cr cycle

被引：40

作者：

Sirinawin, W

Turner, DR ^{[1
]}

Westerlund, S

机构：

[1] Univ Gothenburg, SE-41296 Gothenburg, Sweden

[2] Rogaland Res, N-4004 Stavanger, Norway

来源：

MARINE CHEMISTRY | 2000年 / 71卷 / 3-4期

关键词：

chromium; chromium(VI); Arctic Ocean; Atlantic Ocean; seawater;

D O I：

10.1016/S0304-4203(00)00055-4

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Chromium(VI) concentrations ranging between 3.0 and 6.1 nmol l(-1) and 3.1 and 7.3 nmol l(-1) were found in the Arctic and Atlantic Oceans, respectively. The vertical profiles show modest depletion of chromium(VI) in surface waters, but poor overall correlations between Cr(VI) and nutrient profiles. Given that Cr(VI) is the dominant oxidation state of chromium in open-ocean waters, these data are combined with literature data to reassess the distribution of Cr in oceanic waters. It is concluded that while Cr shows some characteristics of both "recycled" and "accumulated" vertical profiles, it does not fall clearly within either group. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：265 / 282

页数：18

共 33 条

[1] The distribution of dissolved Cu, Zn, Ni, Co and Cr in English coastal surface waters [J].