What is lead?Lead is a heavy bluish-gray metal with a low melting point that occurs naturally in the Earth's crust. It is usually found combined with two or more other elements to form lead compounds. What is lead used for?Lead has many uses; metallic lead is resistant to corrosion (i.e., not easily broken down by environmental exposure). When exposed to air or water, thin films of lead compounds are formed that protect the metal from further attack. It is easily molded and shaped for different uses. Lead can be combined with other metals to form alloys. Lead and lead alloys are commonly found in pipes, storage batteries, weights, shot and ammunition, cable covers, and sheets used to shield us from radiation. The largest use for lead is in storage batteries in the automotive industry. The second largest use is for ammunition. In the cable industry, lead has been used for the stabilization of PVC. Lead stabilizers are added to PVC compounds to prevent degradation from heat and light, and to improve processing properties. Lead compounds are also used as a pigment in paints, dyes, and ceramic glazes to provide bright and vibrant colors and provide increased durability. Over the years, the amount of lead used in these products has been reduced to minimize potential harmful effects on people, animals, and the environment. Tetraethyl lead and tetra methyl lead were once used in the United States as gasoline additives to increase octane rating. However, their use was phased out in the 1980's, and lead was banned for use in gasoline for motor vehicles beginning January 1, 1996. Tetraethyl lead may still be used in gasoline for off-road vehicles and airplanes. Why is lead so highly regulated?Lead has long been recognized as a hazard to consumers. Lead is a highly toxic substance, exposure to which can produce a wide range of adverse health effects. These effects include neurological damage, delayed mental and physical development, attention and learning deficiencies, and hearing problems. Because lead accumulates in the body, even exposure to small amounts of lead can contribute to the overall bio-accumulative level of lead in the blood and to the subsequent risk of adverse health effects. Is lead more hazardous to children than adults?Both adults and children can suffer from the effects of lead poisoning, but childhood lead poisoning is more frequent. In 2004 there were more than 310,000 children under the age of six who had elevated levels of lead in their blood. Babies and young children are more susceptible to lead poisoning than adults because they often put their hands or other objects in their mouths. Exploring their environment by mouthing objects is a developmental behavior which they outgrow somewhere between 24 - 36 months. Lead can enter the body when they put their hands or other objects covered with lead dust in their mouths. Infants and children are more susceptible to lead exposure because of their smaller size and weight. Their growing bodies absorb more lead, and their brains and nervous systems are more sensitive to the damaging effects of lead. Adults, while not as prone as children to severe effects, can react to lead exposure with: difficulties during pregnancy, reproductive problems (found in both men and women), high blood pressure, digestive problems, nerve disorders, memory and concentration problems, and muscle joint pain. What level creates a concern for lead?Consumers are exposed to lead in a variety of ways: through deteriorating paint, household dust, bare soil, air, drinking water, food, ceramics, home remedies, hair dyes and cosmetics (http://downloads.nsc.org/pdf/factsheets/Lead_Poisoning.pdf). The scientific community has set a level of 10 micrograms of lead per deciliter of blood as a threshold level of concern with respect to lead poisoning. To avoid exceeding that level, young children should not chronically ingest more than 15 micrograms of lead per day from consumer products (http://www.cpsc.gov/businfo/frnotices/fr99/lead.html). Where is lead found?
Who regulates lead?The hazardous effects of lead have resulted in its being highly regulated in a wide range of consumer products and by both federal and state agencies.
Examples of the federal, state and industry lead requirements?Federal Requirements The Consumer Product Safety Commission (CPSC) regulates lead in consumer goods, especially children's products. The Consumer Product Safety Improvement Act of 2008 (CPSIA) provides new lead limits for substrates in children's products and a lower lead limit for paint and surface coatings on furniture and children's products; and makes ASTM F963 standard, including the heavy metals requirements, mandatory for all toys. The Food and Drug Administration (FDA) regulates extractable lead limits for all food contact ceramic ware (FDA Compliance Policy Guides, Sub Chapter 545, Food Related, Pottery (Ceramics), Import and Domestic- Cadmium Contamination, CPG 7117.06; FDA Compliance Policy Guides, Sub Chapter 545, Food Related, Pottery (Ceramics), Imports and Domestic-Lead Contamination, CPG 7117.07, as well as lead content in food. State Requirements
Industry Requirements The Society of Glass and Ceramic Decorators (SGCD) has created limits for extractable lead and cadmium for the lip and rim of drinkware products. Are there any international lead requirements?Lead is universally recognized as a toxic substance. Some examples of other countries that regulate lead include:
Food contact lead restrictions for countries outside of the United States?Some of the lead restrictions for food contact articles in other countries include:
Additional Resources:EPA: The Environmental Protection Agency (EPA) plays a major role in addressing residential lead hazards.
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