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WorksheetsIndoor Air Quality Study Session
Total questions: 59
Worksheet time: 59mins
Where does radon originate from?
ground rock and soil
industrial contaminated groundwater
naturally decaying uranium
decaying plutonium
Which of the following would be classified as biological pollutants:
VOCs
Asbestos
Dust mites
Radon
Fungi
Which of the following are short-term effects of IA pollution?
Coughing
Cancer
Heat disease
Headache
Asthma
According to the WHO, which two IA pollution associated diseases account for the greatest number of deaths (27% each)?
Pneumonia
Chronic obstructive pulmonary disease (COPD)
Lung cancer
Ischaematic heart disease
Stroke
Sick Building Syndrome is characterized by:
Effects associated with time spent in the building.
Effects persist even after leaving the building.
Affecting 20% or more of occupants
Can be traced to a specific cause/agent.
General symptoms (headache, dry or itchy skin, fatigue, etc.)
What are the components of Indoor Environmental Quality?
Air Quality
Thermal Comfort Quality
Aesthetic Quality
Light, Sound, and Vibration Quality
Odor Quality
____ is defined as a fine inhalable particle, ____ as an ultra-fine inhalable particle.
PM10, PM2.5
PM5, PM0.1
PM2.5, PM0.1
PM2.5, PM0.05
What is the upper limit of radon in Canada?
100Bq/m3
200Bq/m3
300Bq/m3
400Bq/m3
Which detector would you use for NOx, COx, VOCs and Oxygen?
Protimeter surveymaster
Rotary Centrifugal sampler
Q-Track
Dust Trak
MultiRAE
Which detector would you use for CO, CO2, Temp, Humidity?
Protimeter surveymaster
Rotary Centrifugal sampler
Q-Track
Dust Trak
MultiRAE
Shooting ranges/bullets are a source of ____ .
Asbestos
Ozone
Lead
VOCs
Outdoor ambient CO2 levels are normally...
154-296 ppm
296-328 ppm
328-442 ppm
442-524 ppm
Asbestos may cause...
Liver damage
Mesothelioma
Asbestosis
Carcinoma
Canadians spend about ___% of their time indoors.
60%
70%
80%
90%
How many people die annually due to poor IAQ worldwide
2.3 Million
3.8 Million
100,000
1.6 Million
Building Related Illness (BRI) cannot be traced to a specific source
True
False
With Sick Building Syndrome (SBS) individuals are relieved when outside of the building
True
False
Which of the following is not a part of Indoor Environment Quality
Thermal Comfort
Light, sound, and vibration quality
Odour Quailty
Access to windows
Air quality
What does HEPA stand for?
High Effect Particulate Air
High Efficiency Particulate Air
High Electricstatic Particulate Air
High Energy Particulate Air
A typical furnace filter has negligible efficiency for particles smaller than ____, whereas a low efficiency furnace for particles than smaller than ____.
0.2um, 0.5um
0.5um, 0.15um
0.5um, 10um
0.4um, 0.10um
Advantages of Unit Ventilators include
Reduced floor space requirements
Quieter
Better at controlling humidity and condensed moisture drainage
Does not recirculate air between rooms
What are some types of whole house humidifiers?
Flow-through
Reservoir
Steam
Ultrasonic
There is a positive association between high CO2 concentration and _____
SBS
BRI
Pontiac Fever
MCS
______ & _____ are two widely used performance rating systems for particulate matter.
MERV
HVAC
HEPA
CADR
What is true about the Minimum Efficiency Reporting Value (MERV)?
It evaluates particle removal efficiency of furnace filters and other in-duct air cleaners
It is a measure of a portable air cleaner’s delivery of relatively clean air
HEPA filters are generally equivalent to MERV 13
Higher MERV rating = increased resistance
Effectiveness of an air cleaners describes the....
Ability to reduce concentration of pollutants in lab-controlled setting
Ability to remove pollutants in real-world situations
Impacts of indoor air quality through infiltration
Ability to remove or inactivates target contaminant in lab- controlled setting
What is false about Air Ducts?
Duct cleaning has been proven to prevent health problems
Ducts are commonly made of lightweight aluminum
No conclusive evidence that demonstrate that particle levels in homes increase because of dirty air ducts
Ductwork refers to the system of ducts that transports air warmed or cooled by the system to the various areas of your home.
What percent of dust, mold, bacteria, pollen does a HEPA filter remove?
95%
99.99%
99.97%
100%
______ are Illnesses associated with improperly maintained humidifiers.
Legionnaires’ disease
Humidifier fever
Asbestosis
CO poisoning
When should a duct be cleaned?
There is substantial visible mold
Infested with vermin
Clogged with dust/debris
Particles are being released into the home from supply registers
What does a condensate line do?
Moves PM/ debris out of home
Moves VOC discharge out of home
Brings water into home
Moves water out of home
RH below 40% is associated with which three factors that can increase infections ?
infectious aerosol becomes droplet nuclei which can travel in greater distance
pollutes the air and creates a stack effect
increase viability of anhydrous bacteria/viruses
impairs mucus membrane barriers
_____ is a state wherein a person wearing normal amount of clothing is neither too cold or too warm.
thermal efficient
thermal comfort
thermal effective
thermal satisfied
Which of the factors below can affect thermal comfort?
air speed
air or radiant temperature
metabolic rate
humidity
Stack effect happens when warm polluted air ___ and cold air ___
rise to the top ; stays at the bottom
stays at the bottom ; stays at the top
____ perception changes when air temperature and humidity change
taste
sight
odour
hearing
T/F: Effectiveness of cleaners depends on only three principles.
True
False
T/F 1) A dirty clogged filter can reduce airflow. 2) However, it does not increase energy consumption.
True ; True
True ; False
False ; False
False ; True
Sources, pollutant pathways, occupants and ___ are involved in the development of Indoor Air Quality problems
HVAC system
dust
furnaces
breathing
Where can you find the highest percentage of pathways for air infiltration and exfiltration?
floors, walls and ceilings
doors
plumbing
ducts
Outdoor Air Damper is important because it provides balanced ventilation so that the building does not become over-pressurized
True
False
You do not have to consider the location of out door intake damper and you can place it anywhere.
True
False
1) _____ ventilation is the used of wind and thermal buoyancy to create air movement in and out of the home.
2) (T/F ) It involves the used of mechanical systems.
natural ; true
Mechanical ; false
natural ; false
task ambient ; true
What is the appropriate PPE for asbestos
Chemical protective clothing
Gloves
Eyewash fountain
CO is:
Strong scented
Odorless
Yellow
Colourless
Complete Combustion
Where does CO come from?
Bedrock
Food
Home heating systems
Water sources
Which of the following are severe CO exposure symptoms
Unconsciousness
Coma
Tiredness
Death
Headaches
Which of the following is the allowed PPM concentration for CO for 8 hours
25-35ppm
9-10ppm
90-100ppm
1000-1500ppm
Which of the following are toxigenic fungi?
Starchybotrys chartarum
Aspergillus
Histoplasma
Penicillium
Which of the following are common household molds?
Aspergillus
Lomentospora
Cladosporium
Stachybotrys
Which of the following is a source of formaldehyde?
Building Materials
Biodegredation
Still water
Paint
What are the symptoms of Lead exposure
Neurological
Eye Damage
Gastrointestinal
Renal hematological
Which of the following are types of smog?
Parachemical smog
London smog
Photochemical smog
England smog
Multiple chemical sensitivity (MCS) is a syndrome in which multiple symptoms reportedly occur with low-level chemical exposure
True
False
Which of the following are symptoms of Legionellosis
Pneumonia
Cough
Shortness of breath
Fever
The mortality rate of Legionellosis is:
1 in 10
1 in 100
1 in 1000
1 in 10,000
Legionellosis comes from aerosols from contaminated food preparation
True
False
What is the number 1 cause of IAQ problems
Spending time outdoors
Combustion heating
Pets
Inadequate ventilation
What is the other name for Starchybotry Chartarum
Black mould
Alternaria
Apergillus
Mucor
