Ehs

Question 1

What is environmental health the theory of? (4)

Answer 1

Assessment control prevention and correction of harmful things that may harm the enviroment.

Question 2

4 forms of pollution

Answer 2

Chemical, noise, heat, light energy

Question 3

What is pollution

Answer 3

The introduction of harmful material or the production of harmful conditions

Question 4

Pollution has two classes

Answer 4

Point and non point source

Question 5

What is a contaminant?(2)

Answer 5

If the pollutant is natural and exceeds normal levels

Question 6

Pollution is what in quantity

Answer 6

Big like river

Question 7

Contaminant is what in quantity (3)

Answer 7

Small like food medicine drinking water supply

Question 8

3 factors determines severity of pollutant?

Answer 8

Chemical nature, concentration, persistence

Question 9

3 point source pollutants

Answer 9

Smokestacks accidental spills or pipes discharge into waterways

Question 10

Non point source that is more diffuse

Answer 10

Urban and agriculture run off

Question 12

Non point source that is mobile source

Answer 12

Automobile exhaust

Question 13

What means hazard

Answer 13

A qualitative term that means a factor or exposure that may adversely effect one’s health

Question 14

What means risk

Answer 14

A quantative term means the probability that an event will occur

Question 15

4 example of environmental sanitation

Answer 15

Solid waste management
Treatment of water
Treatement of waste water
Industrial waste treatment

Question 16

Environmental sanitation is control of environmental factors that form —-

Answer 16

Links of transmission

Question 17

Importance of EH upstanding controlling and adapting (6)

Answer 17

Pollution
Natural technological disaster
Physical hazards
Climate change
Sanitation
Food and nutrition deficiency

Question 18

Southern region of Ethiopia success sanitation story

Answer 18

Elimination of open defecation

Question 19

Bangladesh sanitation success story

Answer 19

Open defecation free

Question 20

Observational studies of EH

Answer 20

Environmental epidemiology

Question 21

Animal studies of EH

Answer 21

Toxicology

Question 22

Identifying and quantifying exposures of EH

Answer 22

Exposure science

Question 23

EH helps control adapting and understand (6)

Answer 23

Pollution
Natural technological disaster
Phsycial hazard
Climate change
Sanitation
Food deficiency

Question 24

Observational study of EH

Answer 24

Environmental epidemiology

Question 25

Animal studies of EH

Answer 25

Toxicology

Question 26

Identify and quantity study of EH

Answer 26

Exposure science

Question 27

EH concerns (5)

Answer 27

Air water soil and toxic substances Climate Occupational health and disasters Behaviour

Question 28

Rural areas water supply method 2

Answer 28

Point source (well or spring) Communal faucet

Question 29

Urban communities water supply method

Answer 29

Waterwork system

Question 30

3 ways of physical removal of solids

Answer 30

Coagulation sedimentation filtration

Question 31

2 ways of chemical disinfection

Answer 31

Storage and disinfection

Question 32

How does disinfection happen in water supply sanitation

Answer 32

A small amount of chlorine is used to remove microorganisms in water

Question 33

How does coagulation happen?

Answer 33

removes dirt and other suspended particles . Alum and other chemicals are added to water to form tiny sticky particles called “floc” which attract the dirt particles

Question 34

How does storage happen in water supply sanitation

Answer 34

Placed in closed tank or reservoir for disinfection to take pace

Question 35

3 ways or proper excretion and sewage disposal of urban areas

Answer 35

Water carriage treatment Separation of solids Purification

Question 36

Primary treatement

Answer 36

Solids are removed by screen sand and grit by settling tanks and taken for safe disposal

Question 37

About 70% of remaining solids settle out in tanks are called

Answer 37

Sludge

Question 38

Sludge treatement

Answer 38

Sludge is treated by anaerobic digestion in enclosed tanks and used as fertilizer

Question 39

Tertiary treatement

Answer 39

Gives water final polish

Question 40

4 major global environmental problems

Answer 40

Overpopulation Air pollution Ozone depletion and Climate change Water pollution

Question 41

2 resource depletion

Answer 41

Forests and fossil fuel

Question 42

Extinction of species (3)

Answer 42

Mammals Birds Amphibians

Question 43

Six major air pollutants

Answer 43

Carbon monoxide Nitrogen oxide Particulate matter Sulfur dioxide Hydrocarbons Lead

Question 44

What 5 things u can do to improve Ozone depletion and global warming

Answer 44

Reduce home energy usage Buy cars that are fuel smart Transport alternatives : mass transits bicycles Insulate home Plant trees

Question 45

Most favored optiom of pollution control

Answer 45

Prevent

Question 46

Least favored opinion of pollution control

Answer 46

Dispose

Question 47

7 options of pollution control

Answer 47

Prevent reduce reuse Recycled Mitigate Compost Dispose

Question 48

2 demographic issues

Answer 48

Growth in number Increase inc in consumption

Question 49

Challenges in consumption patterns

Answer 49

More wastes

Question 50

5 basic requirements of healthy environment

Answer 50

Clean air Safe and sufficient water Adequate and safe food Safe and peaceful settlement Stable enviroment

Question 51

Behavioral and perception barriers 2

Answer 51

Low environmental concern Benefits of imporved sanitation not widely understood

Question 52

A challenge of EHS due to

Answer 52

More use and degradation of resources