Introduction Flashcards

(68 cards)

0
Q

Concern of environmental engineering

A

Protection of environment from human modification and exploitation

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1
Q

Prevent erosion

A

Trees

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2
Q

Environmental hazards

A
Site and location
Biological
Chemical
Physical
Psychological/sociological
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3
Q

Solar energy emits heat energy which produces electricity

A

Non-nutritive

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4
Q

Distribution of gases in the atmosphere

A

21% oxygen
78% nitrogen
1% inert gases

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5
Q

Source of energy for consumers

A

Glucose

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6
Q

Relationship of trees and organisms

A

Symbiotic

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7
Q

Effect of cutting trees

A

No more carbon sink

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8
Q

Effect of global warming in the North Pole

A

Green spot

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9
Q

Percent surface water

A

0.28%

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10
Q

Aspect of engineering concerned with protection of human population from adverse environmental factors

A

Environmental health engineering

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11
Q

Fundamentals of Environmental Health

A

Environmental system
Principles of environmental health
Emerging environmental health problems
Areas of environmental health concern

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12
Q

Irreversible chloride content

A

11,000 mg/L

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13
Q

pH of pure water

A

< 7

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15
Q

Regulate seepage of water into the ground

A

Leaves

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16
Q

Aspect of public health concerned with forms of life, substances, forces, and conditions surrounding man which influence their health and development

A

Environmental health

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17
Q

Number of river systems

A

421

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18
Q

Seawater infiltrating the ground water is known as ______

A

Seawater intrusion

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21
Q

Photosynthesis equation

A

Carbon dioxide + water + heat —–> glucose + oxygen

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22
Q

Quality: groundwater vs surface water

A

Groundwater quality is better than surface water quality

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23
Q

Anything constructed by man

A

Built environment

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24
Q

Steps in water cycle

A

Evaporation/transpiration
Condensation
Precipitation
Groundwater Run-off

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25
Q

Sum total of an organism’s external conditions and influences which affect its life, development, and survival

A

Environment

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25
Q

Residues and wastes

A

Solid
Gaseous
Liquid

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25
Aquifer
Water-bearing strata
26
Treatment
Destruction Conversion of harmful substances to less harmful ones Removal of harmful substances Dispersion and dilution of pollutants
27
Function of land/soil
Platform for activities of human society or land-based animals Provides water, nutrients, and anchorage for plants and trees Provides habitat for decomposers Acts as purifying filter on water-containing dissolved and colloidal constituents Where built environment is constructed Source of different minerals
29
Human activities
Residential Work Recreation Transportation
31
Water resources
``` Marine Rivers Lakes Wetlands Groundwater Rainfall ```
32
What is the ability of an individual to adapt to change?
Social support system
32
Percent distribution of water
97. 6% ocean/seawater 2. 07% ice/snow 0. 61% freshwater
33
Water use in the Philippines
85. 6% agriculture 7. 3% industry 7. 1% domestic
33
Largest Philippine river
Cagayan River
34
Percent groundwater
0.33%
34
Number of natural lakes
72
35
Largest lake on the Philippines
Laguna de Bay
36
Largest lake in Mindanao
Lanao Lake
37
14% of total water resource potential of the country
14%
39
Life-support systems
Energy Social Built environment Geophysical
40
Average tropical cyclones per year
11
41
Differences between groundwater and surface water
Extraction cost | Treatment
42
What is leachate?
All dissolves materials and microorganisms in trash
43
Gas produced by organic matter
Biogas/methane gas
44
Natural hazards
Site and location hazards
45
Effects of illegal logging
Erosion and landslides | Global warming
46
WHO Particulate Matter Standard
90 mcg/L
47
Separation by distance
Isolation
48
Acid rain
Nitrogen oxide + sulfur oxide + vapor
49
Second leading morbidity affecting all ages
Diarrhea
50
Biologically dead rivers have
No oxygen | No aquatic organisms/species
52
Increased growth of algae
Eutrophication
53
Critical areas of water pollution
Metro Manila Southern Tagalog Central Luzon
54
Emerging environmental health problems
``` Access to safe water supply Disposal of human waste Disposal of solid waste Disposal of hazardous and toxic waste Air pollution Use of persistent chemicals Rapid urbanization ```
55
Psychological/sociological hazards
``` Noise, overcrowding Lack of privacy Lack of opportunity for social interaction Lack of open space Boredom Stress from work, traffic ```
57
Prevention
Restriction of activities Immunization against diseases Use of prophylactic agents
58
Biochemical Oxygen Demand
Amount of oxygen required to stabilize organic matter
59
``` Water-related diseases Diarrhea Schistosomiasis Minamata disease Dengue Trachoma Enterobiasis Methemoglobinemia Clonorchiasis Filaria Cholera Malaria Scabies Fasciolopsiasis Ascariasis Botulism Hepatitis A Trichuriasis ```
``` Water-borne Water-based Water-borne Water insect-related Water-washed Water insect-related Water-borne Water insect-related Water-washed Water-based Water-washed Water-borne Water-based Water-washed Water-borne Water-insect related Water-washed Water-borne Water-borne Water-washed ```
59
Principles of environmental control
``` Isolation Substitution Shielding Prevention Treatment ```
61
Sources of wastewater
Domestic Industrial Storm water Agricultural runoff
61
Substitution
Use of alternative materials, processes, and operations to prevent ergonomic problems
62
Effect of plastic products in bodies of water
Flooding Fish kill Death of corals
62
Use of barrier/protection to prevent entry of hazard
Shielding
63
Relationship of BOD and pollution
Inverse
63
``` Type of treatment Biofiltration Incineration Autoclave Organic matter to compost Disinfection Chlorination ```
``` Removal of harmful substances Destruction Destruction Conversion of harmful substances to less harmful ones Destruction Destruction ```
64
Caused by ingestion of contaminated water present with chemicals and pathogenic organisms
Water-borne diseases
65
Cause water-washed diseases
Unavailability of water resorting to usage of unsafe sources of water
66
Cause of water-based diseases
Unhygienic disposal of human waste which can cause the spread of parasites
67
Caused by insects that use contaminated water as breeding grounds
Water insect-related diseases