Environmental Health Flashcards

1
Q

Environmental Health

A
  • The physical, chemical, biological, and social factors external to a person that can impact health
  • The assessment and control of environmental factors that can affect health
  • Targeted towards preventing disease and creating health-supportive environments
  • What are we talking about when we talk about “Environmental Health?”
  • Basically, we consider everything outside of a person that impacts health – and the assessment of control of those factors.
  • I think of this as two large categories. . . Those things that directly impact human health and those things that impact the earth/natural environment indirectly impacting human health.
  • 23% of deaths are attributable to the environment
  • 22% of global burden of disease is attributable to the environment
  • Low- and middle-income countries bear the greatest burden of environmental disease
  • Nearly a quarter of all death is attributable to some environmental factors.
  • As is typical, the burden of disease is higher among children. Why are these percentages higher among children? Children are more susceptible to the environment: they eat more, drink more, breathe more in relationship to their body size. They also have behaviors that make them more susceptible (eating stuff off the ground), and they have exposures when they are not mature (brain development and lead)
  • Environmental risk factors, such as air, water and soil pollution, chemical exposures, climate change, and ultraviolet radiation, contribute to more than 100 diseases and injuries.
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2
Q

Human Environment: Physical Environment

A

Environmental Quality
Built Environment and Infrastructure
Geographic access to opportunities throughout the region

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3
Q

Human Environment: Physical Environment- Environmental Quality

A

Air, water, land.
 Protective factors: Policies and practices that maintain a clean, healthy environment.
 Risk factors: Presence of and exposure to toxics and pollution in residential areas and in work environments.

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4
Q

Human Environment: Physical Environment- Built Environment and Infrastructure

A

Housing, parks, recreation facilities, utilities.
 Protective factors: Access to affordable, high-quality housing, local parks, practical opportunities to walk, run, and bicycle. Urban design that supports physical activity.
 Risk factors: Exposure to lead paint, problems with inadequate sanitation and pest infestation, dangerous types of work, and urban design that inhibits physical activity.

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5
Q

Human Environment: Physical Environment- Geographic access to opportunities throughout the region

A

Access to roads or transit connecting to resources within the neighborhood as well as the broader region.
 Protective factors: Convenient location and mobility allow access to services, employment, and cultural and recreational resources.
 Risk factors: Isolation from job centers, particularly areas without convenient public transit access. Distance from recreational facilities or safe parks for health-promoting activities such as exercise.

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6
Q

Human Environment: Social Environment

A

Cultural Characteristics
Social support and networks
community leadership and organization

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7
Q

Human Environment: Social Environment- Cultural Characteristics

A

Values, attitudes, and standards of behavior (including diet) connected to race, ethnicity, gender, religion, or nationality, as well as from other types of social and cultural groupings.
 Protective factors: Cohesion, a sense of community, and access to key cultural institutions. Sense of belonging
 Risk factors: Racism, language barriers, and acceptance of unhealthy behaviors. Absence of expectations that promote healthy behavior and community safety.

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8
Q

Human Environment: Social Environment- Social support and networks

A

Friends, family, colleagues, and neighborhood acquaintances. These networks exist within the community and beyond it, such as churches and clubs.
 Protective factors: Social capital that can provide access to social supports and economic opportunities, as well as to certain health services and resources. Adult role models and peer networks are influential to young people.
 Risk factors: Lack of social supports and role models. Residents do not have access to networks outside the neighborhood that can link them to employment and other key opportunities (sometimes referred to as an absence of “bridging” social capital).

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9
Q

Human Environment: Social Environment- community leadership and organization

A

Level of capacity for mobilization, civic engagement, and political power.
 Protective factors: Community leaders and organizations provide needed supports and services. Political power allows needed resources to be leveraged into the neighborhood.
 Risk factors: Lack of leadership, organization, and political power impedes the flow of resources needed for neighborhood problem-solving and hampers community leadership development.

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10
Q

Human Environment: Service Environment

A

Health services
Public Safety
Community and public support services

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11
Q

Human Environment: Service Environment- Health services

A

Accessibility, affordability, and quality of care for individuals and families.
 Protective factors: Necessary, accessible care delivered in a culturally sensitive manner in satisfactory health facilities with well-trained and culturally appropriate practitioners.
 Risk factors: Lack of access to necessary healthcare services, while what is available is culturally inappropriate and of poor quality.

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12
Q

Human Environment: Service Environment- Public Safety

A

Police and fire protection, emergency services.
 Protective factors: Desired and necessary amount of police and fire protection. Little crime, lots of street/sidewalk activity and interaction.
 Risk factors: Prevalence of violence breeds fear, isolation, and a reluctance to seek even needed services, as residents avoid leaving their homes and spending time outside.

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13
Q

Human Environment: Service Environment- Community and public support services

A

Neighborhood-level public services, including schools, parks and recreation, transit, sanitation, and childcare centers. Community institutions include churches, social clubs, and block groups.
 Protective factors: Quality support services act as important neighborhood institutions providing needed services as well as venues for neighborhood meetings and leadership development.
 Risk factors: Needed services are not available while those located in the neighborhood are undependable and of poor quality.

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14
Q

Human Environment: Economic Environment

A

Employment, income, wealth, and assets
Neighborhood economic conditions

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15
Q

Human Environment: Economic Environment- Employment, income, wealth, and assets

A

The quality and quantity of employment opportunities available to residents and the amount of collective wealth and assets in the community can influence residents’ health.
 Protective factors: Living-wage jobs with health benefits; safe workplaces. Savings, retirement, and homeownership provide economic stability.
 Risk factors: Large numbers of community residents with low-wage jobs with no benefits and unsafe working conditions. Racial and economic segregation and concentrated poverty lead to higher stress and premature mortality.

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16
Q

Human Environment: Economic Environment- Neighborhood economic conditions

A

Presence of commercial services, including grocery stores, banks, and restaurants.
 Protective factors: Attracts public and private investment in services and infrastructure.
 Risk factors: Disinvestment leads to loss of jobs and businesses and a decline in property values.

17
Q

Hazardous Substances

A
  • Chemical agents: radon, lead, other chemicals in environment
  • Physical agents: sidewalks that are broken, hazardous road construction, jackhammer vibration
  • Biological agents: pathogens that live in environment; poisonous plants, snakes, insects
  • Psychological factors: stress, violence, threats to health and wellbeing
18
Q

What are human health effects of environmental conditions?

A

Nealy every body system and organ is impacted by the environment in some way

EXAMPLES :
Eyes: cataracts are caused by sunlight. Farsightedness is increasing as blue-light use increases
Ears: hearing deficits with loud noise. Concerts, work exposures. But now at younger ages and more profound with earbuds right in the ear sound
GI, nervous, resp, reproductive are most effected
General risks: obesity is very connected to environmental impacts. Presence of food, food is constantly available. The quality of that food is a factor that influences obesity
Depression
Role of social media: presence in our human environment. Contributes to anxiety and depression
Lot of things that impact lots of systems  look BEYOND the chemical hazards!

19
Q

Priority Environment Heath Risks

A
  • Unsafe water, poor sanitation and hygiene kill an estimated 1.7 million people annually, particularly as a result of diarrhoeal disease.
  • Indoor smoke from solid fuels kills an estimated 1.6 million people annually due to respiratory diseases. Kerosene heaters, indoor cooking fires, animal dung
  • Malaria kills over 1.2 million people annually, mostly African children under the age of five. Poorly designed irrigation and water systems, inadequate housing, poor waste disposal and water storage, deforestation and loss of biodiversity, all may be contributing factors to the most common vector-borne diseases including malaria, dengue and leishmaniasis. Standing pools of water breed mosquitos
  • Urban air pollution generated by vehicles, industries and energy production kills approximately 800,000 people annually.
  • Unintentional acute poisonings kill 355,000 people globally each year. In developing countries, where two-thirds of these deaths occur, such poisonings are associated strongly with excessive exposure to, and inappropriate use of, toxic chemicals and pesticides present in occupational and/or domestic environments. Using harsh chemicals at work or home
  • Climate change impacts including more extreme weather events, changed patterns of disease and effects on agricultural production, are estimated to cause over 150,000 deaths annually. Harder to actually estimate because its hard to find the true cause. Best estimates are expected to climb with climate change
20
Q

In the past…the focus of global health was largely

A

TOXICOLOGY
Things that contribute to health
contaminants, exposures

21
Q

NOW, the focus is more on…

A

the BUILT ENVIRONMENT

22
Q

Environmental Justice

A
  • Environmental Justice- shift in environmental health! BIG FOR EXAM

o The fair distribution of environmental burdens (& benefits) so we all have access to green spaces and parks, and we all face the burden of trash
o The fair application of environmental laws, policies, and regulations regardless of race, color, national origin, or income
 NOT all of the dirty areas are not just in black communities and all of the parks are not just in white communities

23
Q

Global Environmental Hazards

A

impacts on the earth itself and how those will impact human health
* Climate change
* Stratospheric ozone depletion
* Loss of biodiversity
* Changes in hydrological systems and the supplies of freshwater
o Where is the water? Where are new deserts?
* Land degradation and stresses on food-producing systems land degradation  cant grow food  people move
* How do these hazards impact human health?

24
Q

Environmental Protection Agency (EPA)

A

(FOR THE USA)
* Established in 1970 in response to public demand for cleaner air, water and land.
o In 70s, lots of smog had landed over big cities

As defined earlier, environmental health includes ANYTHING external to a person that impact health. So, the EPA does not address ALL environmental health. For example, occupational environmental hazards are address by OSHA. Food safety is addressed by the FDA.

25
Q

EPA mission

A

To protect human health and the environment

26
Q

EPA activities

A

changes with government
o Develop & enforce regulation
o Give grants
o Study environmental issues
o Sponsor partnerships
o Teach people about the environment
o Publish information

27
Q

United Nations Environmental Programme (UN Environment)

A
  • Created in 1972 by the UN General Assembly
  • Goal is to keep the environment well for the future generations. Removes argument of the “enivorment’s not that bad for us”
  • THE UNITED STATES IS A MEMBER OF THE UNITED NATIONS AND AS SUCH IS HELD TO THESE STANDARDS

  • Overarching Commitment to Sustainability
28
Q

United Nations Environmental Programme Mission

A

To provide leadership and encourage partnership in caring for the environment by inspiring, informing, and enabling nations and peoples to improve their quality of life without compromising that of future generations.

29
Q

Themes of work of the UN environment

A

o Climate change
o Disasters and conflicts
o Ecosystem management
o Environmental governance
o Chemicals and waste
o Resource efficiency
o Environment under review.