WHO Guidelines for indoor air quality : selected pollutants
are common indoor air pollutants in all regions of the world. Despite this public health awareness on indoor air pollution has lagged behind that on
Indoor Air Quality Requirements in Green Building Certifications
pollutants as well as those for ventilation and indoor air measurement. For certifications with more than one scheme for different types of buildings
assessment - of exposure - to indoor air
at point xy
INDOOR AIR POLLUTION IN DEVELOPING COUNTRIES
Worldwide there are four principal classes of indoor pollutants (1)
Common Indoor Air Pollutants: Sources & Health Impacts
Common Indoor Air Pollutants: Sources And Health Impacts. POLLUTANTS FROM NATURAL SOURCES. Pollutant. Major Sources in the Home. Possible Health Impacts.
UK Indoor Air Quality
Levels of indoor air pollution thus depend on a range of internal and external factors. The different types of air pollutants found indoors are.
Indoor Air Quality in Commercial and Institutional Buildings
Health Effects. 4. Sources of Indoor Air Pollutants. 5. Common Pollutant Categories. 6. Prevention or Control IAQ Problems 6. IAQ Management Approach.
A Review of Selected Types of Indoor Air Purifiers in Terms of
13 mai 2022 Apart from minimizing the pollution sources and exhausting indoor pollutants to the outdoors it is often possible to dilute pollutant ...
WHO Guidelines for indoor air quality : selected pollutants
are common indoor air pollutants in all regions of the world. Despite this public health awareness on indoor air pollution has lagged behind that on
Indoor air
ing Group also considered the type magnitude and distribution of the The combined effect of all the biological air contaminants in indoor air.
51 SOURCES TYPES AND CONTROL OF INDOOR AIR POLLUTANTS
CE8005 AIR POLLUTION AND CONTROL ENGINEERING 5 1 SOURCES TYPES AND CONTROL OF INDOOR AIR POLLUTANTS According to EPA scientific evidence has indicated that the air within homes and other buildings can be more seriously polluted than the outdoor air in even the largest and most industrialized cities
Common Indoor Air Pollutants: Sources & Health Impacts
Common Indoor Air Pollutants: Sources And Health Impacts POLLUTANTS FROM NATURAL SOURCES Pollutant Major Sources in the Home Possible Health Impacts Radon – Colorless tasteless and odor-less gas that comes from the radioactive decay of uranium or radium #Earth and rock under buildings #Some earth-derived building materials
Indoor Air Pollution and Health
Indoor Air Quality (IAQ) refers to the air quality within and around buildings and structures, especially as it relates to the health and comfort of building occupants. Understanding and controlling common pollutants indoors can help reduce your risk of indoor health concerns. Health effects from indoor air pollutants may be experienced soon after ...
Primary Causes of Indoor Air Problems
Indoor pollution sources that release gases or particles into the air are the primary cause of indoor air quality problems. Inadequate ventilation can increase indoor pollutant levels by not bringing in enough outdoor air to dilute emissions from indoor sources and by not carrying indoor air pollutants out of the area. High temperature and humidity...
Are there different types of indoor air pollution?
Numerous forms of indoor air pollution are possible in the modern home. Air pollutant levels in the home increase if not enough outdoor air is brought in to dilute emissions from indoor sources and to carry indoor air pollutants out of the home. In addition, high temperature and humidity levels can increase the concentration of some pollutants.
How does indoor air pollution affect a home?
Air pollutant levels in the home increase if not enough outdoor air is brought in to dilute emissions from indoor sources and to carry indoor air pollutants out of the home. In addition, high temperature and humidity levels can increase the concentration of some pollutants. Indoor pollutants can be placed into two groups, biologic and chemical.
What causes air pollution?
Some sources, such as building materials, furnishings and products like air fresheners, can release pollutants more or less continuously. Other sources, related to activities like smoking, cleaning, redecorating or doing hobbies release pollutants intermittently.
What chemicals pollute indoor air?
VOCs that frequently pollute indoor air include toluene, styrene, xylenes, and trichloroethylene. Some of these chemicals may be emitted from aerosol products, dry-cleaned clothing, paints, varnishes, glues, art supplies, cleaners, spot removers, floor waxes, polishes, and air fresheners. The health effects of these chemicals are varied.
IAQ Fact Sheet 2 HF-LRA.161
Common Indoor Air Pollutants: Sources And Health ImpactsPOLLUTANTS FROM NATURAL SOURCES
PollutantMajor Sources in the HomePossible Health ImpactsRadon -
Colorless, tasteless, and odor-
less gas that comes from the radioactive decay of uranium or radium.#Earth and rock under buildings #Some earth-derived building materials #Groundwater; well-water from private supplies#No immediate symptoms. #Lung cancer. Causes estimated20,000 lung-cancer deaths
yearly. Smokers are at higher risk of developing radon- induced lung cancer.Biological
Contaminants- Molds,
mildews and fungi, bacteria, viruses, dust, mites#House dust #Infected humans or animals #Bedding #Poorly maintained humidifiers, dehumidifiers & air conditioners #Wet or moist surfaces #Carpets and home furnishings#Allergies and asthma #Headaches #Eye, nose and throat irritation #Colds, flu, and pneumoniaPOLLUTANTS FROM COMBUSTION (BURNING)
PollutantSourcesHealth Effects
Carbon Monoxide (CO) -
Colorless, odorless gas produced by
incomplete combustion of all carbon fuels.#Heating equipment (furnaces, water heaters, fuel-fired space heaters)-natural gas, kerosene #Wood or coal stoves #Fireplaces #Cook tops and ovens #Charcoal grills #Engines (gasoline, diesel) #Tobacco smoke #Headaches, drowsiness, diz- ziness #Impairment of human respira- tion, vision & brain function- ing, nausea, mental confusion #Symptoms often mistaken for the flu #Very high levels can cause deathNitrogen Oxides and Sulfur
Dioxide -
Gases formed by incomplete com-
bustion of all carbon fuels.#Same as for carbon monoxide#Damage to respiratory tract and lungs (Nitrogen dioxide) #Irritation of eyes, nose and respiratory (sulfur dioxide)Educational programs of the Kentucky Cooperative Extension Service serve all people regardless of race, color, age, sex, religion, disability, or national origin.
2POLLUTANTS FROM COMBUSTION (BURNING)
PollutantSourcesHealth Effects
Respirable Suspended
Particulates (RSP) -
Particles small enough to
inhale that come in a variety of sizes, shapes, and levels of toxicity.#Wood-burning stoves, fireplaces #Unvented kerosene space heaters #Gas-fired ranges, furnaces, water heaters #Vacuum cleaning and house dust #Tobacco smoke #Soap powders, pollen, lint, dust, cleaning and cooking sprays #Eye, nose, and throat irritation #Respiratory infections and bronchitis #Emphysema #Lung cancerEnvironmental Tobacco
Smoke -
Secondhand smoke exhaled by
smokers, also called side stream smoke.#Cigarettes #Cigars #Pipes#Eye, nose and throat irritation #Respiratory irritation (wheez- ing, coughing) #Bronchitis and pneumonia (particularly in children) #Increased risk of emphysema, lung cancer, and heart diseasePollutants from Man-Made Sources
PollutantSourcesHealth Effects
Asbestos -
A natural mineral fiber used
in various building materials.All homes more than about 20
years old are likely to have some asbestos.#Damaged or deteriorating ceiling, wall, and pipe insulation #Vinyl-asbestos floor material #Fireproof gaskets in heat shields, wood stoves, and furnaces #Acoustical materials #Thermal insulation #Exterior siding . #No immediate symptoms #Chest, abdominal and lung cancers and asbestosis #Asbestos can cause lung can- cer, especially among smokers #600 to 1,000 U.S. deaths yearly are asbestos-related-- mostly from workplace expo- sureVolatile Organic
Chemicals (VOCs) -
Airborne chemicals contained
in many household products#Aerosol sprays, hair sprays, per- fumes, solvents, glues, cleaning agents, fabric softeners, pesti- cides, paints, moth repellents, deodorizers, and other household products #Dry-cleaned clothing #Moth balls #Tobacco smoke#Eye, nose, throat irritation #Headaches #Loss of coordination #Confusion #Damage to liver, kidneys, and brain #Various types of cancerPollutants from Man-Made Sources
3PollutantSourcesHealth Effects
Formaldehyde -
Pungent gas released into air.#Pressed wood products (plywood, paneling, particle board) #Urea-formaldhyde foam wall insulation #Carpets, draperies, furniture fabrics #Paper products, glues, adhesives #Some personal care products #Tobacco smoke#Allergic reactions #Eye, nose and throat irritation #Headaches #Nausea, dizziness, coughing #Cancer a possibility #Sensitivity varies widelyLead -
Natural element once used as
a component in gasoline, house paint, solder and water pipes.#Household dust from lead paint #Lead-based paint #Water from lead or lead-soldered pipes or brass fixtures #Soil near highways/ lead indus- tries #Hobbies such as working with stained glass and target shooting #Lead-glazed ceramic ware #Some folk medicines #Damage to brain, kidneys, and nervous system #Behavioral and learning problems #Slowed growth #Anemia #Hearing loss #Large doses can be fatalReferences:
-- Indoor Air Quality and Your Home. New York State Energy Research and Development Authority, Albany, NY.
-- Home Indoor Air Quality Assessment. Michael P. Vogel, Ed.D., Extension Housing Specialist, Montana State
University Extension Service.
-- Quick IAQ Facts for the Community Educator. Joseph T. Ponessa, Ph.D., Associate Professor/Housing & Energy
Specialist, Rutgers Cooperative Extension Service, New Jersey.Linda Adler, M.A.
Extension Specialist for Home Furnishings
University of Kentucky Cooperative Extension Service.IAQ FS2
8/2000
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