Geology and Human Health Case Studies Collection

These case studies were developed by students in the 2012 introductory-level Geology and Human Health course offered by the Department of Earth Sciences at Montana State University. This course is offered for non-geoscience majors and counts for our Core Curriculum credit in the Contemporary Issues in Science rubric.


Results 1 - 10 of 28 matches

Health Effects of Pesticides in The Great Lakes
The use of pesticides was not as common 10,000 years ago as it is today. Around 1945 "pesticides became common in most areas of the world" (W.R. Carlile). Pesticides are used to prevent unwanted pest (living organisms that occur where they are NOT wanted or cause damage to crops, or humans, or animals). Pesticides are hazardous chemicals that help destroy pest but are putting are environment at risk.

Silicon, Silicates and Silicosis
If you are exposed to dust in the atmosphere from natural or human-caused sources, you may be at risk for permanent health damage due to silicosis. To find out more about the risks, health impacts, and ways to protect yourself please read on.

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.

What Will Climate Change Mean for Lyme Disease?
The first case of Lyme disease to be reported in the United States was in the town of Lyme, Connecticut, in 1975. The disease is caused by a bite of a deer tick (Ixodes scapularis) leading to a bacterial infection (Borrelia burgdorferi). With the impending changes to the climate, scientists expect to see the reported cases of Lyme disease to increase, as well as the disease to be able to occur in areas it previously had not. Arming yourself with knowledge of the signs and symptoms of the infection is paramount for those who spend time outdoors.

Plastics in the Ocean Affecting Human Health
Over a few decades, humans have managed to dump tons upon tons of garbage into the ocean. Of the most devastating elements of this pollution is that plastics takes thousands of years to decay. As a result, fish and wildlife are becoming intoxicated. Consequently the toxins from the plastics have entered the food chain, threatening human health. In the most polluted places in the ocean, the mass of plastic exceeds the amount of plankton six times over. This is a large piece of evidence that leaves the problem of polluted oceans undeniable. It is upsetting that more of clean up effort is not taking place.

"Pharmaceuticals and Personal Care Products"
Pharmaceuticals and personal care products (PPCPs) have been polluting our water and soil ever since prescription drugs and beauty products have been readily available to the public. While there is no end in sight for the demand of such items, research in this field is extremely important in order to discover how it is truly effecting the world's populations and how to mitigate the pollution levels.

The Health Effects of Hurricane Katrina
Hurricane Katrina was one of the strongest storms to hit the United States coast within the last 100 years. It devastated New Orleans and caused many health concerns for the public. The water left from the storm left little clean water to use, buildings completely destroyed, and the public at a loss for words. Nothing can truly stop these types of storms, all one can do is know what to look out for and how to protect themselves as best as they can.

Airborne Dust Particles
Airborne dust is particle, or Particulate Matter (PM), pollution, and is one of the most significant air pollutants in Pima County. PM is made up of tiny solid particles or liquid droplets (a fraction of the thickness of a human hair) that float in the air we breathe. Because they are so small, you cannot see individual particles, but you can sometimes see the haze that is formed when millions of particles blur the spread of sunlight.

Airborne Microbes
In order to educate you about airborne microbes in different environments, I will let you know a little bit about when, where and how you can find these little, microscopic buggers and what kind of affect they'll have on you or your family. Everyone has their own natural microorganisms that live on, in and around their own bodies. These bacteria are known as natural flora and our own bodies (specifically the immune system) recognize that they are good for us. We, as humans, would not survive without such creatures. However, this website gives information regarding pathogenic microorganisms in general. That is, things that you can't see causing physical harm.

Smoke and Ash Inhalation Related to Wildfires
The number one cause of death when it comes to fires is smoke inhalation. Smoke inhalation damages the body by asphyxiation (lack of oxygen), chemical irritation, or a combination of the two. Smoke itself can be harmless to you but it takes up the space needed for oxygen, similar to carbon dioxide. Smoke inhalation is especially dangerous because people may not show symptoms until 24 to 48 hours after the event. An estimated 50-80% of fire deaths are from inhalation, not burns.


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