Natural Attenuation of the Lead Scavengers EDB and 1,2-DCA
This online engineering PDH course reviews the current knowledge of the transport and fate of EDB and 1,2-DCA in ground water. It also provides information on the distribution of EDB and 1,2-DCA at motor fuel release sites that was collected during a survey of sites coordinated by the U. S. EPA Office of Underground Storage Tanks and the Association of State and Territorial Solid Waste Management Officials (ASTSWMO) and evaluates the associated chance of contaminating ground water.
Lead was effectively banned in gasoline in the USA before the underground storage tank program was fully implemented. As a result, only a portion of the state agencies that implement the federal UST program routinely monitor for EDB and 1,2-DCA at gasoline spill sites. In many states, little is known of the risk from EDB and 1,2-DCA at old leaded gasoline spill sites. Monitored Natural Attenuation (MNA) is widely used by State Agencies to manage the risk from other fuel components, such as benzene, in ground water. The appropriate application of MNA requires a solid understanding of the behavior of the contaminants in ground water.
This 4 PDH online course is applicable to all civil, environmental or chemical engineers, as well technical personnel who conduct risk evaluations for EDB or 1,2-DCA at specific motor fuel release sites, and for the technical staff of regulatory agencies that review the risk evaluations and make decisions concerning risk management and cleanup of the contamination. It is also useful for those who must apportion resources for monitoring and risk management of the hazard associated with EDB, benzene, and 1,2 DCA in ground water used for drinking water.
This PE continuing education course is intended to provide you with the following specific knowledge and skills:
- Understanding the use of EDB and 1,2-DCA in leaded motor fuel
- Familiarizing with the regulation of motor fuel storage to protect ground water and drinking water
- Learning about investigations of EDB and 1,2-DCA at motor fuel release sites
- Familiarizing with the conceptual model of a motor fuel release in the subsurface
- Learning about attenuation caused by physical processes
- Learning about attenuation caused by abiotic transformation or biodegradation
- Applications of Compound Specific Isotope Analysis (CSIA) to document biodegradation and/or abiotic transformation of EDB and 1,2-DCA
- Understanding the distribution of EDB and 1,2-DCA at motor fuel release sites, and the associated chance of contaminating ground water
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