General Industry News

EPA Proposes a 63 Percent Pb and As Emission Reduction

The EPA has proposed stronger air toxics emissions standards for secondary lead smelters for lead and arsenic.

The EPA is proposing stronger air toxics standards for secondary lead smelters to improve air quality and people’s health in communities where the smelters are located. The proposed standards would cut lead and arsenic emissions and would, for the first time, require these facilities to control emissions of dioxins. Exposure to toxic air pollutants can cause cancer and other serious health issues. Even at low levels, exposure to lead can impair a child’s IQ, learning capabilities and memory.

Secondary lead smelters use furnaces to remove and recycle lead from scrap material, mainly from automobile batteries, keeping a significant amount of lead from polluting our environment. The facilities have already made significant emissions reductions due to the current standards that were issued in 1997 as well as other state and industry actions. The new proposal would result in an additional 63 percent reduction in lead and arsenic emissions. These reductions will also help areas meet the new, more protective air quality standards for lead the agency issued in 2008.

The EPA’s proposal would allow facilities the option to choose the most practical and cost-effective emissions control technology or techniques to reduce their emissions, which are readily available and already being used by many of the facilities.

Currently there are fewer than 20 secondary smelters located throughout the United States and its territories that would be covered by this proposal. Some of these facilities have taken additional steps beyond what is required by the existing standard to further control and significantly reduce their emissions.

The Clean Air Act requires the agency to perform two types of reviews after air toxics standards have been issued. The first determines if additional reductions from regulated facilities are needed to protect public health and the environment and the second determines if any new, cost-effective emissions control approaches, practices or processes have been developed since the standards were issued. Both reviews revealed that updates to the standards for secondary lead smelters needed to be made.

Lead emitted into the air can be inhaled, or can be ingested after it settles in the environment. Ingestion is the main route of human exposure. Children are the most susceptible to lead poisoning because they are more likely to ingest lead, and their bodies are rapidly developing. There is no known safe level of lead in the human body.

The EPA will accept comment on this proposal for 45 days after publication in the Federal Register. The agency is under court order to issue a final rule for these sources in December 2011. More information is available by clicking on this URL link.

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Roy D. Bigham has been the editor of Pollution Engineering since 2002. Bigham attended Eastern Michigan University where he majored in chemistry and computer science with an associates degree in mathematics. He has worked as a laboratory technician at a research laboratory, managed an electroplating operation and an associated analytical laboratory. He spent three years overseeing environmental operations of five domestic and five overseas operations for a major manufacturer in the Detroit area. He then managed a field services department for an environmental analytical laboratory before moving on to a position as an environmental engineer for a construction aggregates company.

Bigham won a design award for a waste water treatment system for a landfill in the Detroit area from the State Chamber of Commerce. He has been active in the environmental field since 1980.

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