Geology and Human Health Case Studies Collection
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Libby Amphibole Asbestos
Libby, Montana, a small town nestled in the northwestern corner of the state, is a humble town, a great destination for anglers and hunters. What many people don't know about Libby, is the lurking danger hanging over the heads of the 3,000 or so Libby residents. Located nearby is an old vermiculite mine that has created a health hazard dealing with asbestos. The old mine was used for acquiring vermiculite, that was used for insulation, shingles, and other construction materials. Imbedded in the vermiculite is a form of asbestos that was released into the air when the vermiculite was processed, creating an abundance of the fibers released into the atmosphere around Libby. The health risk, amplified by human activity, has always been a health hazard due to natural geologic deposits of vermiculite containing asbestos, in and around the Libby area.
Asbestos at Thetford Mines, Quebec Canada
After being the focal point for the economies of nations such as Canada for a century, the asbestos industry looks to be all but dead. The health hazards that this silky-white product presents are now seen to outweigh the benefits of its fire, rust, and rot resistance, tensile strength, and sound absorption.
Agricultural Pesticides and Human Health
A pesticide is any substance or mixture of substances intended for preventing, destroying, repelling, or mitigating any pest (epa.gov). Pests can be defined as any organism that causes plant diseases. Agricultural pesticides are then those chemicals that are used by farmers to prevent the effectivity of the pests on the growth and productivity of agricultural crops.
Volcanic Ash: More Than Just A Science Project
The term "volcano" has its origin from the name of Vulcan, the Roman god of fire. However, volcanoes are a result of processes of the earth much older than Roman mythology. While volcanoes may be fun to construct for science class or watch on television, the real consequences of volcanic eruptions can be harmful and serious. Some of these consequences include fires, structure damage, and differences in climate. One of the most deadly effects of a volcano is the ash coming from the eruption, which carries poisonous gases that are harmful to humans, plants, and animals alike.
Health Impacts of Selenium Related to Phosphorous Mining
As is true with all substances, the dosage determines the difference between nutrient and poison. In order to understand the impacts of phosphorous mining, a basic understanding of what phosphorous is and why it is mined is first needed.
Health Effects from British Petroleum Oil Spill
The British Petroleum oil spill made history on April 20, 2010. An explosion on the drilling platform caused the oil rig to begin sinking and as the oil rig sunk, millions of gallons of oil began dissipating into the Gulf of Mexico with no way to try and stop it. As the oil continued to leak out into the open ocean, not only sea life became endangered, human health did as well. Once the ocean became polluted with oil, it was only a matter of time until the effects began weighing on human health.
Radiation and Nuclear Health Hazards
When we think of radiation we may immediately think of only dangerous and harmful things. In reality, the word radiation refers to any transfer of energy through space from a source. Some examples of radiation include sunlight, radio waves, x-rays, heat, alpha, beta, gamma ionizing radiation, and infrared, just to name a few. Not all of these types of radiation are harmful, in fact, in moderation, most radiation will not pose a health risk. Certain types of radiation, however, can be dangerous, even in small doses.
Lead in Drinking Water
Lead is rarely found in source water but can enter drinking water via corrosion in pipes. Homes built before 1986 are more likely to have lead pipes, fixtures, and solder. However, even newer homes are still at risk. Legally "lead free" pipes may contain up to 8 percent lead. More information on lead's health effects, sources, transport, and prevention tactics are contained within this page.
Chromium and its negative effects on the environment
Chromium comes in a plethora of forms and shapes in nature; it is a naturally occurring element (Atomic Mass #24), and can be both helpful and harmful to human health and the environment.
Health Hazards from Mining in Butte, Montana
Butte, Montana was once know as "the richest hill on earth" for it's historical extensive mining industry. The area has now transformed into the nation's largest superfund site after much of the mining was shut down and the Berkeley Pit filled up with acidic groundwater with high concentrations of hazardous heavy metals.