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LEED Green Associate > Section 7: Indoor Environmental Quality (IEQ) > Flashcards

Section 7: Indoor Environmental Quality (IEQ) Flashcards

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LEED Green Associate flashcards
1
Q

For Indoor Environmental Quality (IEQ), LEED focus on which four issue?

A
  1. Indoor air quality
  2. Lighting
  3. Acoustics
  4. Occupant experience
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2
Q

What does IAQ stand for?

A

Indoor air quality

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3
Q

What does VOC stand for?

A

Volatile organic compounds

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4
Q

Which metric is used to measure VOCs?

A

Grams per liter (g/L)

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5
Q

What are VOC’s?

A

Substances that vaporize at room temperature and can cause health problems

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6
Q

Name six strategies during design for good indoor air quality

A
  1. Prohibit smoking
  2. Design for proper ventilation
  3. Protect air that comes into the building
  4. Test for radon or other on-site contaminants
  5. Design for entryway systems
  6. Specify low-emitting materials
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7
Q

What is radon?

A

Radon is a cancer-causing natural radioactive gas that you can’t see, smell, or taste

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8
Q

What does MERV filters stand for?

A

Minimum Efficiency Reporting Value filters

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9
Q

Air filters are rated by what system?

A

MERV (minimum efficiency reporting value)

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10
Q

Name three strategies for improving indoor air quality during construction

A
  1. Keep building clean during construction
  2. Protect materials and equipment
  3. Conduct a flush-out
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11
Q

List nine strategies for improving indoor air quality during operations and maintenance

A
  1. Ensure adequate ventilation
  2. Monitor outdoor airflow
  3. Monitor carbon dioxide
  4. Calibrate sensors
  5. Prohibit smoking
  6. Develop and implement a green cleaning policy
  7. Conduct custodial effectiveness assessment
  8. Use entryway systems
    9 Use integrated pest management
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12
Q

Industry standards ASHRAE Standard 62 is aimed at what?

A

Ventilation for Acceptable Indoor Air Quality

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13
Q

Which industry standard is aimed at ventilation for acceptable indoor air quality?

A

ASHRAE Standard 62

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14
Q

Occupant experiences consists of which four areas?

A
  • Thermal comfort
  • Lighting and views
  • Acoustics
  • Ergonomics
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15
Q

Thermal comfort includes which three elements?

A
  • Temperature
  • Humidity
  • Air movement
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16
Q

To bring in more daylight into a large area, private offices should be located where?

A

Toward the building core

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17
Q

To bring in more daylight into a large area, cubicles should be located where?

A

At the perimeter

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18
Q

Name seven strategies for improving occupant’s comfort and control

A
  1. Use daylighting
  2. Install operable windows
  3. Give occupants temperature and ventilation control
  4. Give occupants lighting control
  5. Conduct occupant surveys
  6. Provide ergonomic furniture
  7. Include appropriate acoustic design
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19
Q

American’s approximately spend what percentage of their time indoors?

A

90%

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20
Q

ASHRAE 55-2004 standard relates to what?

A

Thermal comfort

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21
Q

Conditions for thermal comfort are described by which standard?

A

ASHRAE 55-2004

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22
Q

What can allow air flow to be automatically increased if concentration exceeds a setpoint?

A

Demmand-controlled ventilation

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23
Q

How far away should any smoking be from the building entrance?

A

25 foot

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24
Q

What is the highest MERV rating?

A

16

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25
Q

Green buildings tend to require a MERV rating of what?

A

8

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26
Q

What would modulating photoelectric daylight sensors do?

A

Increase building energy efficiency

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27
Q

What does Green Seal Standard look at?

A

VOC’s in materials

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28
Q

What is a bake-out?

A

Using heat to release VOC’s from the building before human occupancy

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29
Q

A ventilation system that can automatically adjust air circulation volume based on the number of occupants in the space is known as what?

A

Demand control ventilation

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30
Q

What are the three types of ventilation systems?

A
  • Passive or natural ventilation
  • Active or mechanical ventilation
  • Mixed ventilation
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31
Q

Give three examples of where in a building could natural ventilation be received?

A
  • Windows
  • Doors
  • Exterior wall openings
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32
Q

What is the proper location for CO2 sensors in a building?

A

Between 3 and 6 feet high mounted on a wall

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33
Q

During the building flush-out, what other kind of work can be done?

A

Commissioning

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34
Q

What does the SMACNA guidelines address?

A

Air quality

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35
Q

What does a demand control ventilation largely respond to?

A

Carbon dioxide concentrations

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36
Q

Define non-occupied space

A

Non-Occupied space refers to rooms used by maintenance people that are not accessible by regular occupants

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37
Q

Define regular occupied space

A

Regular occupied space refers to where people work or live

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38
Q

Define multi occupied space

A

Multi occupied space refers to areas where people gather, e.g. conference rooms or classrooms

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39
Q

Which space refers to rooms used by maintenance people that are not accessible by regular occupants?

A

Non-occupied space

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40
Q

Which space refers to where people work or live?

A

Regular occupied space

41
Q

Which space refers to areas where people gather such as conference rooms and classrooms?

A

Multi occupied space

42
Q

ASHRAE 52.2-1999 standard relates to what?

A

Indoor Air Quality.

Method of testing general ventilation air-cleaning devices for removal efficiency by particle size

43
Q

What does CIBSE stand for?

A

Charterred Institute of Building Service Engineers

44
Q

Within LEED, CIBSE standards look at what?

A

Indoor Air Quality

45
Q

What does SCAQMD stand for?

A

South Coast Air Quality Management District

46
Q

In LEED, what does SCAQMD standards look at?

A

Indoor Air Quality

47
Q

List some benefits of reducing indoor air contaminants

A
  • Improved comfort levels
  • Lower absenteeism
  • Increased productivity
48
Q

What does the I-BEAM tool provide?

A

The I-BEAM provides sample forms and logs for fielding and recording complaints about IAQ

49
Q

What are the three governing bodies with which flooring materials in newly renovated areas and additions must comply?

A
  • FloorSore
  • SCAQMS
  • Green Seal
50
Q

List concerns with isolated indoor smoking areas

A
  • Increased energy for ventilation
  • Additional material use
  • Complicating the ventilation system
51
Q

What is the best standard to follow when performing a blower door test?

A

ASTM E779-03

52
Q

What does a blower door test do?

A

Measures the air tightness of buildings

53
Q

List the three standards that a building engineer should be familiar with when balancing an air flow to offices and large conference rooms

A
  • ASHRAE 62.1
  • ASHRAE 55
  • ASHRAE 52.1
54
Q

Define the breathing zone in terms of indoor environmental quality

A

Breathing zone is in the region within an occupied space between 3 and 6 feet above the floor

55
Q

What are the most prominent compounds that have a negative impact on indoor air quality and the earths atmosphere?

A

Volitle Organic Compounds (VOCs)

56
Q

Define mechanical ventilation

A

Mechanical ventilation, or active ventilation, is provided by mechanical powered equipment, such as motor driven fans or blowers

57
Q

What can be conducted to measure the air tightness of buildings?

A

Blower door test

58
Q

The emission of volatile organic compounds from synthetic and natural products is known as what?

A

Off-gassing

59
Q

List five environmentally negative aspects of construction that can be avoided with building reuse strategies

A
  • Demolition Process
  • Construction Waste
  • Raw Material Extraction
  • Manufacturing
  • Transportation
60
Q

What is fly ash?

A

Fly ash is the solid residue derived from incineration processes

61
Q

The percentage of recycled or salvaged materials should be calculated by one of which two methods?

A
  • Weight

- Volume

62
Q

Why is the decomposition of solid waste in landfills a problem?

A

It releases methane, a greenhouse gas

63
Q

List three examples of gas-powered equipment

A
  • Maintenance equipment and vehicles
  • Landscape equipment
  • Clearning equipment
64
Q

List six examples of ongoing consumables

A
  • Paper
  • Toner
  • Cartridges
  • Binders
  • Batteries
  • Desk accessories
65
Q

In the United States, what is the largest source of mercury air emissions?

A

Coal-fired electricity plants

66
Q

List three opportunities to reduce overall operating costs through a sustainable purchasing policy

A
  • Reduce energy, water, and fuel expenditures
  • Easier compliance with environmental, health and safety regulations
  • Lower waste management fees
67
Q

What is the target for the overall average of mercury content in lamps?

A

90 picograms average per lumen-hour

68
Q

List seven examples of base building elements

A
  • Building components and structures
  • Panels
  • Attached finishings
  • Carpet and other flooring materials
  • Adhesives
  • Sealants
  • Paints and coatings
69
Q

How does natural ventilation achieve heat transfer and air movement?

A

Natural ventilation uses the building layout, fabric, and form to achieve heat transfer and air movement

70
Q

What is off-gassing?

A

The emission of volatile organic compounds from synthetic and natural product

71
Q

Define vision glazing

A

Vision glazing is that portion of exterior windows above 30 inches and below 90 inches that permits a view to the outside

72
Q

What is outdoor air as referenced in LEED?

A

Outdoor air is the ambient air that enters a building system, either through natural ventilation or infiltration

73
Q

The type of resin that cannot be contained in composite panels and agribifer products is known as what?

A

Urea-formaldehyde

74
Q

List the two contaminants that are measured when performing Indoor Air Quality testing prior to occupancy?

A
  • Formaldehyde

- Carbon monoxide

75
Q

Define return air

A

Return air is air removed from a space then be recirculated or exhausted

76
Q

Define infiltration

A

Infiltration is uncontrolled inward air leakage to conditioned spaces through unintentional opening in ceilings, floors, and walls or the outdoors caused by the same pressure differences that induce exfiltration

77
Q

Architectural paints and coatings applied within the vapour barrier must comply with which standard?

A

Green Seal Standard GS-11

78
Q

The portion of exterior windows above 30 inches and below 90 inches that permits a view to the outside is known as what?

A

Vision glazing

79
Q

Air that is removed from a space then be recirculated or exhausted is known as what?

A

Return air

80
Q

Which standards refers to air filtration (MERV rating)?

A

ASHRAE Standard 52.2-1999

81
Q

In order to meet the requirements of increased ventilation, ventilation must be increased by what percent above the applicable baseline standard?

A

30%

82
Q

Which standard should be followed for indoor air quality during construction, as it relates to LEED?

A

Sheet Metal and Air Conditioning National Contractors Association (SMACNA)

83
Q

Define reverberation

A

Reverberation is an acoustic phenomenon that occurs when sound persists in an enclosed space because of its repeated reflection or scattering upon the enclosing surfaces within the space

84
Q

Health and comfort effects linked to time spent in a building, but where no specific illness or cause can be identified is known as what?

A

Sick Building Syndrome (SBS)

85
Q

Systems of diagnosable illnesses attracted directly to airborne building contaminants (such as asthma, aggravated allergies, etc) is known as what?

A

Building Related Illness (BRI)

86
Q

The most effective method to improve indoor air quality is to keep what out of breathing zones?

A

Contaminants

87
Q

List the two flush-out options for the indoor environmental quality management plan

A
  • Large flush

- Small flush (continued flushing/ventilation)

88
Q

What is an alternative to the prescriptive flush-out?

A

Air Quality Testing

89
Q

Ambient CO2 levels indicate the performance of what?

A

The ventilation system

90
Q

MERV is linked to which standard?

A

ASHRAE 52.2-1999

91
Q

Define Sick Building Syndrome (SBS)

A

Health and comfort effects linked to time spent in a building, but where no specific illness or cause can be identified

92
Q

Define Building Related Illness (BRI)

A

Systems of diagnosable illnesses attracted directly to airborne building contaminants (such as asthma, aggravated allergies

93
Q

Interior illumination / exterior illumination = ?

A

Glazing factor

94
Q

What is described below?

  • Utilise interior mirrors to reflect light down and inward
  • Less heat transfer than skylight
  • Resembles light fixtures
A

Sun tubes

95
Q

What feature provides a connection to the outdoors and improves occupant comfort and productivity?

A

Views

96
Q

The portion of exterior windows above 30 inches and below 90 inches that permits a view to the outside is known as what?

A

Vision glazing

97
Q

High concentrations of CO2 mean what?

A
  • Ventilation is not functioning properly

- Air is not healthy to breath

98
Q

The following are examples of what?

  • Vinyl
  • Linoleum
  • Laminate flooring
  • Wood flooring
  • Rubber flooring
  • Wall base
A

Hard surface flooring

LEED Green Associate (9 decks)

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