Chapter 6. Chapter 6: Environmental Health

What environmental hazards impact the health of people?

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Chapter 6: Environmental Health

Guiding Question 6.2

What environmental hazards impact the health of people?

Why You Should Care

Humans interact with the environment every day and most of those interactions are not dangerous or risky for our health. But some aspects of our environment do pose a threat to our health and these are environmental hazards.

Environmental hazards break into three types. Physical hazards arise from non-living hazards that involve weather, natural disasters, and other physical interactions. Chemical hazards involve exposure to or ingestion of chemicals that are either manmade or naturally caused, such as air or water pollution. Finally, biological hazards include living things such as parasites, viruses, and bacteria that use humans as a host or a food source.

In all three cases, environmental hazards decrease human health through sickness and sometimes death. Death translates into a higher mortality rate and a decreased life span, but sickness can also weaken immunity and shorten life spans. In parts of the world with minimal access to healthcare, environmental hazards significantly shorten life span.

Question Test Your Vocabulary

Choose the correct term for each of the following definitions:

Term Definition
ZrTaf8Uw3h+v4QIvY/7ffpb8avJvsFkizuPW7G91OrLItjsH7QX5aOe9mqWCq9Q0JILNf0BjovPOiWHh5pGm4osFXNk9deYnayl5fgyLXSnuvcuhxwuDpl194CM= A scientist who studies the cause and pattern of disease in human populations.
b6CJz4o/NM4W2W5o/s/0NHKMs4oCxoR7qN09m0RhqJeVZpWVak3d/OkBgCPphQmzC/rOErpNnKaj7HemO3IT0S23olG1kcLJxNKA/0n2alfUzZ44178FlCSjBwk= An illness that is not transmissible between people; not infectious.
gQc9SSYrS6scGPdejJV0l8eQywWyOUuzsQyavgmBaF82lk1/1ILFYdJcTBSGzeo9LlIATl8Xo20DPNI4ruIBUBk3NbP7tsPxcjwSQJL+iL3IBLS7yM1REa9evEA= A social science field that deals with the health of human populations.
4PVcQBvROm/RlkRI0qtloqUl+O0VihCWfrASUP4mVvOkhwVK1AKKbyX6c+yXS1LE3OMNPjuTIHkKhm9u/lDGrtLvYLfBp3qntAjAhU92hkUR8Ye+Lp9c7vovHvw= The branch of the social science field that focuses on factors in the natural world and the human-built environment that impact the health of populations.
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Question Sequence

Question 6.1

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Question 6.2

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Question 6.3

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Question 6.4

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Infographic 6.3: Environmental Factors Contribute to the Global Burden of Disease

Question Sequence

Question 6.5

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Question 6.6

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Question 6.7

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Question 6.8

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Question 6.9

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Humans are spreading into rural areas to clear forests and grasslands for farmland as populations continue to grow. Also, in areas where food is limited, hunting and poaching of wild animals increases chances of zoonotic infections.