Tetraethyllead Spill Remedial Investigation,
South America
In response to a petroleum spill in a coastal zone, analytical methods were developed to measure tetraethyllead (TEL) and it’s degradation products, triethyllead chloride (TREL) and inorganic lead in marine sediments, pore waters and seawater.  Low reporting limits (ppb in sediments and sub-ppb in aqueous samples) were required for use in human health and ecosystem risk assessment studies.  A combination of techniques were required to achieve the analytical goals for the various compounds in the different matrices.  Sediments were analyzed for total lead by ICAP and GFAA following microwave- assisted acid digestion.  A second portion of sediment was extracted with freon to remove TEL for analysis by GFAA.  After freon extraction, the sediment was extracted with water to remove the water soluble TREL and analyzed by GC/MS following derivatization and extraction using solid phase micro-extraction (SPME).

 
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For more information please call or e-mail the
General Manager:
Nicholas P. Corso at (508) 822-9300
ncorso@whgrp.com

 
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Marine Environmental Solutions
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