Chemical Exposure, Public Health Concerns, & Environmental Impact
Chemical Health Effects
A.) Mercury
Health Risks
Neurological damage (adolescent)
Neurological damage and developmental disabilities (in utero, neonatal stage)
Low I.Q
B.) Asbestos
Health Risks
lung cancer
breathing difficulty
death
C.) Lead
Health Risks
Mental Retardation
Stunted Growth
Visual/Hearing Impairment
D.) Radon
Health Risks
Lung Cancer
Mercury
Mercury has long been identified as an environmental hazard and of great concern to public health. Mercury is toxic to vital organs and is deadly when entered into the bloodstream in quantities greater than trace amounts. Recently, mercury has been observed in oceanic fish that are caught in the wild and sold at markets and in fish caught at reservoirs.
"Mercury has been found in largemouth bass (Micropterus salmoides) from five South Carolina reservoirs. According to investigators, "mercury concentrations in largemouth bass (Micropterus salmoides) bass were compared among five reservoirs in South Carolina. Three of these reservoirs (Lake Russell, Lake Thurmond, and Lake Marion) are accessible to the public and two (L-Lake and Par Pond) are located on the U.S. Department of Energy's Savanna River Site (SRS), which is closed to public access." (NewsRx, 2006)
The implication is the U.S. DoE has potentially released excess mercury, which has drained into these lakes and reservoirs. Most industrial sites are major environmental hazards as the release chemicals into the environment. The DoE is similar to private industrial operations such that chemicals are also released into the environment that causes considerable damage to the eco system and creates major health hazards for the population at-large.
However, "no mercury concentrations in excess of the U.S. Food and Drug Administration action level (1.0mg/kg) were found in any bass from the public-accessible reservoirs. However, the majority of fish from these reservoirs had mercury concentrations that fall into or exceed the U.S. Environmental Protection Agency consumption category of 'no more than one per week'. (NewsRx)
"Researchers from the Mount Sinai School of Medicine estimated (in 2000) the annual cost of lost productivity associated with IQ impairment from mercury pollution was U.S. 1.3 billion. Health and medical groups cited widely accepted scientific research describing mercury as a 'potent neurotoxicant' that can cause developmental and learning difficulties, reduce IQ, and impair motor function, vision and hearing." (ANJ, 2005)
Asbestos
Asbestos has been in the news as a public health threat for over a half century. The issue with asbestos is not in the material itself, but in the release of fibers from asbestos into the air and into human lungs. Implications are greatest with regard to asbestos contamination within the school setting and with construction/mining workers.
"Corn is convinced that the question of risk-whether there is more risk in removing asbestos materials or leaving them in place-should have been seen as a scientifically settled issue. The EPA exaggerated risks and avoided uncertainties, while Congress did not take time to understand the science and passed a law that encouraged schools to proceed with high-risk asbestos abatement. Yet if the point is a high degree of confusion and controversy, Corn's apparent disappointment in a confused policy outcome seems inconsistent." (Kovarik, 2007)
"Asbestos is an occupational and environmental hazard of catastrophic proportions. Asbestos has been responsible for over 200,000 deaths in the United States, and it will cause millions more deaths worldwide. The profound tragedy of the asbestos epidemic is that all illnesses and deaths related to asbestos are entirely preventable." (LaDou, Landrigan, Bailar, Foa, 2001)
"The toll of illness and death among asbestos workers in mining, construction, and heavy industry is well-known." (LaDou, Landrigan, Bailar, Foa, 2001)
Lead
Lead is another well-known threat and is of greatest danger to children and to those within industrial environments where lead is known or is commonly used. "Lead poses a serious environmental health risk to young children, causing such irreversible health effects as mental retardation, stunted growth, and hearing and visual impairment. Studies suggest that various sectors of the public, including children's caregivers, are not sufficiently concerned about this risk or knowledgeable about ways of minimizing it." (Brittle, Zint, 2003)
The developmental stage of a child's growth is extremely sensitive and is subject to abnormal physiological and psychological development should any child ingest or have lead ions enter into the blood stream. Caregivers and other members of society whom have direct contact with children must be made aware of this fact. There has been a new wave of immigrants, many whom may have emigrated from nations where lead is ubiquitous in the environment.
"Children may encounter lead almost anywhere, from their homes to their playgrounds. Lead paint continues to cause most cases of severe lead poisoning in children, although its use was outlawed in 1978 (Needleman, 1998). As older homes deteriorate or are renovated, lead paint may flake, creating a hazard of ingestion by children and dust contamination that is often invisible to the unaided human eye." (Brittle, Zint, 2003)
"In the United States, about 7.6% of children under six years of age are estimated to have blood lead levels above those that federal agencies consider safe (the blood lead standard is currently 10 micrograms per deciliter [[mu]g/dl]) (Centers for Disease Control and prevention [CDC], 2000). These children disproportionately live in poor, urban areas, and consequently, in some parts of the country, up to 30% of children may be exposed to unsafe levels of lead (CDC, 2000)." (Brittle, Zint, 2003)
Radon
Radon levels have been an issue in many a rural town throughout the country. Unfortunately, the overall awareness of radon and the inherent danger of high radon levels is not fully understood by residents. "People are advised to take action when the radon gas levels in their home are above the average health-risk range, said Dr. Christine Nevin-Woods." (Sword 2008)
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