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elemental mercury) can be absorbed through the skin. Excessive/adverse acute exposures can develop <br /> quickly into seizures, coma, and cardiorespiratory arrest. Signs and symptoms of chronic over- <br /> exposure to all or some of the Title 22 metals include: loss of appetite, metallic taste in mouth, <br /> anxiety, constipation, nausea, pallor, excessive tiredness, weakness, insomnia, headache, nervous <br /> irritability, muscle or joint pain, tremors, numbness, dizziness, hyperactivity and colic. Medical <br /> attention should be sought if exposure is suspected. <br /> Exposure limits vary from metal to metal and between the various metallic compounds of each. <br /> Among the Title 22 metals, lead (see separate summary) and mercury are among the most commonly <br /> encountered. Environmental monitoring onsite for Title 22 metals is not practicable. The best controls <br /> are to avoid prolonged direct contact with impacted soils and to practice good personal hygiene when <br /> working in impacted areas. <br /> Control: Avoid contact with, and inhalation of, vapors and impacted soil/dust. Dampen soil prior to <br /> sampling to suppress dust hazards. <br /> Project No.S8475-06-70 -14- April 25,2003 <br />