BYUI HS 310 Unit 3 (L8 - L11) || All Answers Are Correct
100%.
Indoor Air Quality correct answers air quality within buildings as it relates to the health and
comfort of building occupants
IAQ immediate effects correct answers irritation of the eyes, nose, and throat, headaches,
dizziness, and fatigue. asthma may show up, be aggravated or worsened.
signs of indoor air problems correct answers moisture condensation on windows or walls
smelly or stuffy air
dirty central heating and air cooling equipment
and areas where books, shoes, or other items become moldy
Source Control
Improved Ventilation
Air cleaners correct answers three basic strategies to improve indoor air quality (SC - IV - AC)
IAQ long-term effects correct answers respiratory diseases, heart disease and cancer, can be
severely debilitating or fatal
Asbestos correct answers _____________ is a mineral fiber that occurs in rock and soil.
Where Can I Find Asbestos? correct answers variety of building construction materials for
insulation and as a fire retardant. Asbestos has also been used in a wide range of manufactured
goods, mostly in building materials (roofing shingles, ceiling and floor tiles, paper products, and
asbestos cement products), friction products (automobile clutch, brake, and transmission parts),
heat-resistant fabrics, packaging, gaskets, and coatings.
How Can People Be Exposed to Asbestos? correct answers ____________ _________ may be
released into the air by the disturbance of ____________-containing material during product use,
demolition work, building or home maintenance, repair, and remodeling.
lung cancer
mesothelioma
asbestosis correct answers Three of the major health effects associated with asbestos exposure
are:
Biological Pollutants' correct answers pollen
viruses
bacteria
household pests (skin flakes)
pest, insects, rodent dropping
Protein urine - rats, mice
contaminated central air (B, P)
,Health Effects From Biological Contaminants correct answers hypersensitivity pneumonitis
allergic rhinitis
some types of asthma
neezing
watery eyes
coughing
shortness of breath
dizziness
lethargy
fever
digestive problems(H, E, f, B, C)
humidifier fever correct answers exposure to toxins from microorganisms that can grow in large
building ventilation systems.
Biological Contaminants correct answers Mold, dust mites, pet dander and pest droppings or
body parts can trigger asthma. (B, C)
Biological Contaminants correct answers including molds and pollens can cause allergic
reactions for a significant portion of the population. (B, C)
Biological Contaminants correct answers Tuberculosis, measles, staphylococcus infections,
Legionella and influenza are known to be transmitted by air. (B, C)
Reducing Exposure to Biological Contaminants correct answers General good housekeeping,
maintenance of heating and air conditioning equipment,
exhaust fans that are vented to the outdoors
Ventilate the attic and crawl spaces
cool mist or ultrasonic humidifiers
clean and dry water-damaged carpets and building materials
Clean and disinfect the basement floor drain (R, E, B, C)
Formaldehyde correct answers a colorless pungent gas in solution made by oxidizing methanol.
Formaldehyde is found in: correct answers Resins used in the manufacture of composite wood
products
Building materials and insulation
Household products such as glues, permanent press fabrics, paints and coatings, lacquers and
finishes, and paper products
Preservatives used in some medicines, cosmetics and other consumer products such as
dishwashing liquids and fabric softeners
Fertilizers and pesticides (F, i, F, i)
formaldehyde - byproduct of combustion correct answers Emissions from un-vented, fuel
burning appliances, like gas stoves or kerosene space heaters.
, Cigarette smoke. (F, bp, o, C)
exposed to formaldehyde correct answers breathing air containing off-gassed ____________ __
__________________ (E, t, F)
Health effects of formaldehyde correct answers irritation of the skin, eyes, nose, and throat. High
levels of exposure may cause some types of cancers. (H, E, o F)
Volatile Organic Compounds' (VOCs) correct answers are emitted as gases from certain solids or
liquids
VOCs sources correct answers Household products, including:
paints, paint strippers and other solvents
wood preservatives
aerosol sprays
cleansers and disinfectants
moth repellents and air fresheners
stored fuels and automotive products
hobby supplies
dry-cleaned clothing
pesticide.
Other products, including:
building materials and furnishings
office equipment such as copiers and printers, correction fluids and carbonless copy paper
graphics and craft materials including glues and adhesives, permanent markers and photographic
solutions.
VOCs Health Effects correct answers Eye, nose and throat irritation
Headaches, loss of coordination and nausea
Damage to liver, kidney and central nervous system
Some organics can cause cancer in animals, some are suspected or known to cause cancer in
humans.
onjunctival irritation
nose and throat discomfort
headache
allergic skin reaction
dyspnea
declines in serum cholinesterase levels
nausea
emesis
epistaxis
fatigue
dizziness
VOCs Levels in Homes correct answers average 2 to 5 times higher indoors than outdoor
certain activities, such as paint stripping, levels may be 1,000 times background outdoor levels.
