As the deep sea port was develop in the east regions of Thailand; Maptaphut which the detail present the 30 years development of the area.  During working in the Eastern Coastal area of Thailand we found the data of mercury content in water and sediments, given the detailed in http://www.scienceasia.org/2002.28.n4/v28_301_312.pdf
The coast area of Rayong Province, provides us sea foods, natural sand beach and industrial complex. Given mercury contents in sea lives reminds us on consideration of the reliable of data and the toxic of mercury. Mercury and mercury compound is used in gauge and laboratory equipments, thermometer, some mercury vapor lamps, phenylmercuric acetate compound in cosmetic and chemical reagents, for instance. What about the old traditional teeth filling by mercury compound amalgam? For most of the dental clinics and hospital, the void filling materials are free from toxic. MTEC provide the research on modified material as teeth fills. Free mercury is for everyone’s health and safety, isn’t it.