DIMETHYLMERCURY FORMATION IN THE ALBORAN SEA

被引：52

作者：

COSSA, D ^{[1
]}

MARTIN, JM ^{[1
]}

SANJUAN, J ^{[1
]}

机构：

[1] ECOLE NORMALE SUPER, INST BIOGEOCHIM, F-92120 MONTROUGE, FRANCE

来源：

MARINE POLLUTION BULLETIN | 1994年 / 28卷 / 06期

关键词：

D O I：

10.1016/0025-326X(94)90276-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The distribution of dissolved gaseous dimethylmercury (DMHg) was studied in three vertical profiles in the waters of the Alboran Sea and the adjacent Strait of Gibraltar. The shape of these profiles suggests a sub-thermocline source of this species in the low oxygen region of the Alboran Sea. Methylation of mercury apparently occurs as a result of bacterial activity. Unstable and volatile DMHg is advected toward the Gibraltar Strait with outflowing Mediterranean waters and then decomposes and/or escapes into the atmosphere. The existence of this sub-thermocline reservoir of DMHg could lead to the accumulation of methylmercury in deep pelagic fish.

引用

页码：381 / 384

页数：4

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