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Total Mercury Concentrations in Coastal Areas of Thailand: A Review

Thailand has recognized mercury (Hg) as one of the most hazardous metals and considers this metal as a national concern. This article reviews the existing data on the total mercury concentrations in seawater, sediments and marine organisms in coastal areas of Thailand beginning in 1974 to 1999. The purpose of this article is to assess the degree of mercury contamination in Thai coastal environments. The mercury standards/guidelines from both Thailand and other countries are also included. In general, the situation of mercury contamination in Thai coastal areas is still within a safe level, except a few samples exceeding the standard have been collected in some areas.