Intro to Environmental Health

Question 1

Enumerate 3 factors affecting human health.

Answer 1

economy
community
environment

Question 2

What is false about environment?
A. that which is external to individual human host.
B. Divided into physical, social and cultural only
C.Any or all of which can influence health status in populations
D.Plays a vital role in transmission and prevention of disease

Answer 2

B

biological is also included

Question 3

identify
Theory and practice of assessing, correcting, controlling and preventing those factors in the environment that can potentially affect adversely the health of present and future generations.

Answer 3

Environmental health

Question 4

enumerate parts of environmental system

Answer 4

Life-support systems
Human activities
Residues and wastes
Environmental hazards

Question 5

False about environmental system
A. Life-support systems provide the energy and materials needed to make human activities possible
B. Residues and wastes feedback positively to the L-SS and cause environmental hazards
C. Environmental hazards influence the capacity of
life-support systems in sustaining life

Answer 5

B

negative any feedback dapat

Question 6

Which is false?
A. Envt health is concerned with only quality and quantity of water.
B. Envt health is focused on waste minimisation.
C. Envt health is concerned with rapid urbanisation and industrialisation.
D. When waste decomposes, methane may be produced.

Answer 6

A

EH - also concerned with access to safe water supply

Question 7

identify which level of water source:
protected well or a developed spring with an outlet but without a distribution system because it’s generally adaptable for rural areas where houses are thinly scattered serving an average of 15 households with people having to fetch water from up to 250 meters distance

Answer 7

Level I

Question 8

Identify which level of water source:
fully reticulated system with individual house connections based on a daily water demand of more than 100 liters per person.

Answer 8

Level III

Question 9

Identify which level of water source:

piped system with communal or public faucets usually serving 4-6 households within 25m distance

Answer 9

Level II

Question 10

False about sanitation
A. Number & percentage of HH w/ sanitary toilet facilities increased annually from by less than 2% fr 2005-2006
B. Existing sewerage and sanitation facilities are unsatisfactory and inadequate, only 4% have access to sewerage.
C. However, the government has made this a high priority already

Answer 10

C

Question 11

Which is not true on issues of inadequate sanitary facilities?
A.Privacy of people in the community
B.Disuse of facility due to physical condition/appearance
C.Waste may be carried by the floodwater that could carry pathogenic microorganisms to a water resource
D.Misuse of facility does not favour disease transmission

Answer 11

D

Question 12

Fill in the blanks:

Solid wastes also affect the air due to burning & spontaneous combustion due to the methane generated by ___

Answer 12

anaerobic decomposition

Question 13

Atmospheric __ and __ levels in Payatas and Smokey Mt. dumpsites range high to dangerously high

Answer 13

carbon monoxide

lead

Question 14

Which organ system is affected by dangerously high atmospheric CO and Pb level in children scavengers?
A. pulmonary
B. nervous
C. gastrointestinal

Answer 14

A

Question 15

Out of all hospital wastes, which is the hardest to dispose and why?

Answer 15

Sharps- most challenging to dispose; both concerns

safety hazard, potentially infectious hazard

Question 16

Which statement is false?
A.Waste minimization is important due to disposal costs and site issues.
B. Hazardous healthcare waste is not mixed with municipal solid waste at disposal sites.
C. There is a controversy over “non-burn” technologies.
D. There is very slow development of new sanitary landfills and conversions from controlled dumps despite the requirements of law.

Answer 16

B. unfortunately.

Question 17

identify: Emission into the air of hazardous substances at a rate that exceeds the capacity of natural processes in the atmosphere to purify it

Answer 17

air pollution

Question 18

identify: capacity of the environment to purify itself

Answer 18

Assimilative Capacity

Question 19

enumerate most vulnerable groups to air pollution exposure

Answer 19

 Children
 Elderly
 People suffering from preexisting respiratory and heart diseases

Question 20

two most common types of particulate matter: enumerate

Answer 20

PM10 and PM2.5

Question 21

Which is not a common air pollutant?
A.Sulfur dioxide 
B.Oxides of Boron
C.Ozone 
D.Carbon monoxide

Answer 21

B

Nitrogen dapat

Question 22

Trace metals (e.g., Pb) pollute the air. True or False?

Answer 22

True

Question 23

name two air cleaning technologies mentioned in the lecture that can help reduce air pollution

Answer 23

scrubbers/electrostatic precipitators

Question 24

T/F

Aerial spraying affected by changes in wind directions can pollute other communities

Answer 24

T