Environmental Health UnitEnvironmental Health Unit: : The IntroductionThe Introduction

Today’s Objective:Today’s Objective:Content Objectives:

◦TSWBAT identify issues of how the environment affects our personal health on a daily basis.

Language Objectives:◦TSWBAT identify issues of how the

environment affect our personal health by doing a “graffiti” brainstorming activity and discussing the relationship between the environment and public health issues worldwide.

Graffiti Graffiti

There are 6 words/phrases each paper

In your row – ◦write down any idea, point, example,

etc. you can think of when you read the word/statement.

You will get two minutes at each station

What do we already know?What do we already know?What was new?What was new?

What will be learned this unit?What will be learned this unit?

-Hazardous waste-Risk assessment-Industrial hygiene-Human & environmental toxicology-Air quality-Water quality

Environmental HealthEnvironmental Health

The study of humans & their interactions with the environment

It examines chemical, physical & biological agents that move through the environment affecting human health & investigates ways to control or minimize them.

Human health is dependant on a High quality environment

The professional in environmental health works to protect the overall quality health of:◦ Air◦ Water◦ soil ◦ food

Environmental Health – USA & Environmental Health – USA & PAPA

PA Department of Env. Protection http://www.depweb.state.pa.us/portal/server.pt/community/dep_home/5968

CDC http://www.cdc.gov/Environmental/

Why is this important to your health?◦ http://www.youtube.com/watch?v=J42CLZH1NlE&feature=related

Env. Issues – Env. Issues – Population GrowthPopulation Growth

◦ 7 billion people live on earth people are living longer &

fewer infants are dying

◦ Land suitable for growing crops may be inhabited by people

◦ Population increases – so does the demand for health services

◦ Population of developing countries grows at a faster rate of developed countries.

Env. Issues - Env. Issues - Poverty & HungerPoverty & Hunger

◦ Poverty = condition in which a

person does not have sufficient resources to eat and live

◦ Malnutrition = condition in which the

body does not get the nutrients required for optimal health

Env. Issues –Env. Issues – Greenhouse Effect & Global Greenhouse Effect & Global WarmingWarming

◦ Greenhouse effect = process by which

water vapor & gases in the atmosphere absorb & reflect infrared rays & warm Earth’s surfaces

◦ Global warming = an increase in

earth’s temperature

Env. Issues – Env. Issues – Destruction of the Ozone LayerDestruction of the Ozone Layer

◦Ozone = form of O2

◦Ozone layer = protective layer of the upper atmosphere that traps ultraviolet (UV) radiation from the sun and prevents it from reaching earth’s surface

◦ CFCs = chlorofluorocarbons – group of gases that are easy to compress & expand / used as a propellant in aerosol sprays & coolants

Env. Issues – Env. Issues – Destruction of the Rain ForestsDestruction of the Rain Forests

◦Rain forest = hot, wet, forested area

that contains many species of trees, plants, & animals – 7% of earth’s land

◦Source of food, rubber, timber, ingredients for prescription drugs

Forests are being cleared for agriculture – trees produce O2 & absorb CO2 and it can kill many species of plants & animals

‘‘Your TurnYour Turn’:’:What would you like to What would you like to learn about this unit?learn about this unit?

Write your thoughts at the end of your notes outline