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Public Health Elective: Week 2

Week 2: Environmental Health

The field of environmental health is varied and vast, covering everything from toxicology to food production and safety to the psychology of green spaces. 

Using the disease causation triad, we know that diseases need three things to spread: an agent, a host, and an environment such as air, water, food, and sewage. Focusing on how and why a disease occurs, environmental health specialists recommend ways to prevent and stop outbreaks using environmental controls. 

For this week, we are going to focus specifically on elements of the environment needed for life itself: climate, air, and water. To browse other environmental health topics, take a look at the CDC's National Center for Environment Health

 

"But man is a part of nature, and his war against nature is inevitability a war against himself." Rachel Carson, author of Silent Spring

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Further Reading

MODULE 6: Climate Change

Climate change is considered by most to be one of, if not, the greatest threats to human health in history. As the earth grows warmer, we experience more and more severe storms, rising sea levels, droughts, fires, extreme heat events, lowered air quality, migrating diseases, less access to potable water, food shortages, and more. This module provides you with a basic overview of climate change as a health issue. 

Learning Objectives:

  • Define environmental health.
  • Understand the health impacts of climate change.
  • Understand difficulties in communicating the health impact of climate change.

Read:

  • Chapter 1: What is Environmental Health?  In:  Frumkin, H. (2016). Environmental Health: From Global to Local. John Wiley & Sons.

Watch:

Read:  (in E-Reserves unless linked below)

Supplemental Materials:

MODULE 7: Heat

Excessive and extreme heat events are a serious public health threat because they increase daily mortality and morbidity especially in the elderly, young, poor, physically challenged, and mentality ill. For instance, during the 2003 European heat wave, more than 15,000 deaths occurred in France alone. The total death toll across Europe is estimated to be over 70,000 people.  

For us in the Southeast US, the combination of heat and humidity cause the heat indices to rise, prompting heat advisories like this one from July 28, 2021 that warn "Never leave people or pets alone in a closed car. Drink plenty of water even if you don’t feel thirsty. Wear loose-fitting, light-colored clothing." 

Learning Objectives:

  • Describe the key features of an extreme heat event.
  • Explain the health risks to people and environmental impact of excessive heat.
  • Know the warning signs and symptoms of heat-related illnesses.

Read:  (in E-Reserves unless linked below)

Supplemental Materials:

MODULE 8: Water

Most people don't tend to think about water, but without water there is no life. Access to fresh drinkable water should be a basic human right but the earth only has a limited supply of water, and of all the water, only 3% is freshwater. Further, over a billion people lack safe water and basic sanitation. While we tend to think this only applies to developing countries, maintaining a safe supply of water is a fragile system rife with the potential health impacts. This module provides a basic overview of water and health from the Frumkin reading along with varied examples of water issues. Be sure to explore the CDC's waterborne disease website. 

Learning Objectives:

  • Explain the health consequences of poor quality of or lack of access to fresh water.
  • Know the most common waterborne illnesses.
  • Describe examples of regional water issues and their impact.

Read:

  • Chapter 16: Water and Health. In:  Frumkin, H. (2016). Environmental Health: From Global to Local. John Wiley & Sons.

Read:  (in E-Reserves unless linked below)

Supplemental Materials:

MODULE 9: Air

Most people don't consider air quality either, however, air quality is a huge public health issue. Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen, and mold spores may be suspended as particles. Ozone is a major part of air pollution in cities. And, of course, water, air, and heat all affect one another. 

  • More Heat = More Ozone
  • More Drought = More Dust
  • More Drought = More Wildfires
  • More CO2 = More Weeds < Food Crops

Learning Objectives:

  • Describe the pollutants that affect air quality.
  • Know the health impact of poor air quality.
  • Know specific examples of air quality issues.

Read:

  • Chapter 13: Air Pollution. In:  Frumkin, H. (2016). Environmental Health: From Global to Local. John Wiley & Sons.

Watch:

Read:  (in E-Reserves unless linked below)

Supplemental Materials:

MODULE 10: The Flint Michigan Water Crisis Case Study

Learning Objectives:

  • Explain the Flint River Water Crisis and the role Dr. Hanna-Attisha played in it.

Watch:

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