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Essentials for Healthy Homes Practitioners

Keep it Ventilated

Key References

Reference Topics

________

Overview

Start With People

Keep It Dry

Keep It Clean

Keep It Pest-Free

Keep It Ventilated

Keep It Safe

Keep It Contaminant-Free

Keep It Maintained

Making It Work

All References

The National Center for Healthy Housing (NCHH) operates the National Healthy Housing Clearinghouse.  The Clearinghouse consists of hundreds of journal articles, reports, and publications related to healthy homes.  This section links you to the documents organized by healthy homes topic based on the modules in the National Healthy Homes Training Center's flagship course called Essentials for Healthy Homes Practitioners.  See the list of topics in the box to the right.  Make sure you scroll down past the introductory text.   

Please note that NCHH has not sorted the documents within the html page.  The most recent documents are at the top.  Use the Find (Control-F) function in your browser to seek out a particular document or issue.

For basic information on the topic, check out the PDF version of the Keep It Ventilated presentation from the course.

What do I do when link to document doesn't work?  Sometimes, you will get an error when you click on the document title.  In this situation, the full document is not available because NCHH has not received permission from the publisher to post it.  If you encounter this error, go to the clearinghouse search page to find the document.  When you get the search results, click on "Article Details" in the abstract for the document to get a link to the publisher.  You will need to get the article directly from the publisher.

Are the references current? NCHH will update the references at least every other month.  So it is a good idea to use the Clearinghouse's search engine for recent additions. 


 

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Carbon monoxide poisoning - garages

Authors: T.H. Greiner

 

How dangerous is it to operate an engine in a closed building? So dangerous that it must NEVER be done, even for a short time. The extremely high concentrations of carbon monoxide produced by an engine can raise CO concentrations in a closed building so quickly that a person may collapse before they even realize there is a problem. Carbon monoxide reduces the amount of oxygen to the brain, causing CO intoxication, and lack of reasoning. Studies by the Centers for Disease Control found that CO co

 


 

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Carbon Monoxide Poisoning - Checking for Complete Combustion

Authors: Thomas H. Greiner

 

Fossil fuels contain carbon (C) and hydrogen (H). During complete combustion carbon and hydrogen combine with oxygen (O2) to produce carbon dioxide (CO2) and water (H2O). During incomplete combustion part of the carbon is not completely oxidized producing soot or carbon monoxide (CO). Incomplete combustion uses fuel inefficiently and the carbon monoxide produced is a health hazard. A properly designed, adjusted, and maintained gas flame produces only small amounts of carbon monoxide, with 400 pa

 


 

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Carbon Monoxide Poisoning: Downdrafting (Backdrafting)

Authors: Dr. Thomas Greiner

 

What is Carbon Monoxide? Carbon monoxide (CO) is a colorless, odorless, tasteless, deadly gas. You can't see, smell or taste it. Carbon monoxide is slightly lighter than air and quickly spreads throughout an entire house. What causes carbon monoxide production? Carbon monoxide gas is produced when fossil fuel burns incompletely because of insufficient oxygen. During incomplete combustion, the car and hydrogen in the fuel combine to form carbon dioxide, water, heat, and deadly carbon monoxide. In

 


 

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Carbon monoxide (co) poses silent and serious threat for families during winter months

Authors: Home Safety Council

 

Often known as a silent killer, carbon monoxide (CO) is a colorless and odorless gas that poses a substantial risk to families using fuel-burning heating sources during the winter months. In fact, according to the Home Safety Council’s State of Home Safety in America™ report, CO poisoning accounted for more than 100,000 medical visits in the year studied. The high number of poisonings documented by the Council’s research may be explained by the fact that sixty-seven percent (67 percent) of house

 


 

 

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Radon

Authors: California Geological Society

 

Radon gas is a naturally occurring radioactive gas that is invisible and odorless. It forms from the radioactive decay small amounts of uranium and thorium naturally present in rocks and soils so some radon exists in all rocks and so Certain rock types, such as black shales and certain igneous rocks, can have uranium and thorium in amounts high than is typical for the earth’s crust. Increased amounts of radon will be generated in the subsurface at these locations. Because radon is a gas, it can

 


 

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American Lung Association – Carbon Monoxide Fact Sheet

Authors: American Lung Association

 

Americans spend approximately 90 percent of their time indoors, where hazardous air pollutants can exist at higher levels than outdoors. Children, pregnant women, the elderly, and people with lung disease are particularly at high risk for adverse health effects caused by indoor air pollution, including carbon monoxide (CO). CO is a colorless, odorless gas that is produced as a result of incomplete burning of carbon containing fuels. Exposure to CO reduces the blood's ability to carry oxygen.

 


 

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American Lung Association – Carbon Monoxide Fact Sheet

Authors: American Lung Association

 

Americans spend approximately 90 percent of their time indoors, where hazardous air pollutants can exist at higher levels than outdoors. Children, pregnant women, the elderly, and people with lung disease are particularly at high risk for adverse health effects caused by indoor air pollution, including carbon monoxide (CO). CO is a colorless, odorless gas that is produced as a result of incomplete burning of carbon containing fuels. Exposure to CO reduces the blood's ability to carry oxygen.

 


 

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Carbon Monoxide Poisoning OSHA Fact Sheet

Authors: U.S. Department of Labor Occupational Safety and Health Administration

 

What is carbon monoxide? Carbon monoxide (CO) is a poisonous, colorless, odorless, and tasteless gas. Although it has no detectable odor, CO is often mixed with other gases that do have an odor. So, you can inhale carbon monoxide right along with gases that you can smell and not even know that CO is present. CO is a common industrial hazard resulting from the incomplete burning of natural gas and any other material containing carbon such as gasoline, kerosene, oil, propane, coal, or wood. Forg

 


 

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Fatalities Associated With Carbon Monoxide Poisoning From Motor Vehicles, 1995-1997

Authors: U.S. Department of Transporation National Highway Traffic Safety Administration

 

NHTSA’s National Center for Statistics and Analysis (NCSA) recently completed a second study of data from the National Center for Health Statistics (NCHS) to obtain an estimate of the number of persons killed as a result of carbon monoxide (CO) poisoning by exhaust gases of motor vehicles. This note updates the results of the study done in 1996 to assess the extent of fatalities associated with CO poisoning from motor vehicles using the NCHS data for the 1993 calendar year (NHTSA, 1996). This

 


 

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Consumer Product Safety Review C.O. Poisoning

Authors: U.S. Consumer Product Safety Commission

 

According to the latest data compiled by staff of the U.S. Consumer Product Safety Commission (CPSC), heating systems continue to be one of the major causes of non-fire, non-motor vehicle carbon monoxide (CO) poisoning. An estimated 217 people died as a result of this kind of CO poisoning during 1996, the most recent year with complete death certificate data. Of these deaths, heating systems were involved in 163 fatalities, or about 75% of all consumer product-related CO poisoning deaths (Fig

 


 

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Combustion Emissions from Gas Ranges

Authors: American Gas Association

 

There are over 39 million natural gas and propane household gas ranges, ovens, and cooktops (referred to, here, collectively as “ranges”) in the U. S. Even with the excellent safety record of this equipment, increasing attention is being given to combustion emissions from ranges. What combustion emissions from gas ranges are of concern to the public and the gas industry? The natural gas industry has devoted technical attention and research to issues of carbon monoxide (CO) since the 1920s and

 


 

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Should You Have the Air Ducts in Your Home Cleaned?

Authors: United States Environmental Protection Agency Indoor Environments Division

 

Knowledge about air duct cleaning is in its early stages, so a blanket recommendation cannot be offered as to whether you should have the air ducts in your home cleaned. The U.S. Environmental Protection Agency (EPA) urges you to read this document in its entirety as it provides important information on the subject. Duct cleaning has never been shown to actually prevent health problems. Neither do studies conclusively demonstrate that particle (e.g., dust) levels in homes increase because of di

 


 

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Home Is Where the Harm Is: Inadequate Housing as a Public Health Crisis

Authors: Samiya A. Bashir

 

For many breadwinners of low-income families, going home at the end of a long workday can be a challenge, but it is a challenge they look forward to from the moment they arrive at work. The battle might begin with stepping off site into a city block filled with diesel exhaust. Perhaps a hard worker straps into a car for a fight with congested traffic on the long commute home, constantly alert to each potential danger the modern roadways present. Or maybe this breadwinner walks through the exha

 


 

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Measurement of atmospheric concentrations of common household pesticides: a pilot study

Authors: Robert G. Lewis and Andrew E. Bond

 

Abstract. Air concentrations of 28 of the most commonly used household pesticides were measured inside nine homes in Jacksonville, Florida, and compared with corresponding outdoor levels. The households selected were sorted into three categories according to the degree of pesticide indoor usage. Personal air monitoring was also performed on one resident of each household by means of a portable sampler, which was kept with the person at all times. Five of the pesticides were found in the air insi

 


 

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Carbon Monoxide Poisoning from Portable Electric Generators

Authors: Neil B. Hampson Jennette L. Zmaeff

 

Background: While the overall death rate from unintentional carbon monoxide (CO) poisoning has decreased in the United States due to improved automobile emissions controls and a decline in CO poisonings from motor vehicles, exposures have not changed from some sources of CO. One of these is the operation of portable electrical generators in poorly ventilated spaces. This study sought to describe the population poisoned from CO produced by portable electric generators, and to determine the reaso

 


 

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Identifying and managing adverse environmental health effects: 6. Carbon monoxide poisoning

Authors: Alan Abelsohn, Margaret D. Sanborn, Barry J. Jessiman

 

CARBON MONOXIDE POISONING IS AN ENIGMATIC ILLNESS. The symptoms are often nonspecific or masked by an exacerbation of an underlying illness, such as congestive heart failure, that has been triggered by carbon monoxide inhalation. The effects can range from mild, annoying symptoms relieved by removal of the source to severe morbidity with profound central nervous system dysfunction, acute complications and delayed sequelae. Estimates suggest that about one-third of nonfatal cases of carbon monoxi

 


 

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Reduction of Airborne Particles in Houses With Occupants Having Respiratory Ailments

Authors: Canada Mortgage and Housing Corporation

 

An expanding body of public health research has identified airborne particles as a cause of respiratory ailments.A number of studies have examined the concentration of fine particles in indoor air and the incidence of respiratory complications. In these studies,the average concentration over the period of one or more days was considered. Little attention has been paid, however, to variation in concentration over shorter time scales, such as over the course of a day.This can be investigated by

 


 

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Effect of short-term exposure to low levels of gaseous pollutants on chronic obstructive pulmonary disease hospitalizations

Authors: Qiuying Yanga, et al.

 

We examined the associations between gaseous pollutants and hospitalization for chronic obstructive pulmonary diseases (COPD) among elderlypeople living in Vancouver, British Columbia, Canada, a cityin which ambient air pollution levels are relativelylow. We regressed the logarithm of dailycounts of acute COPD hospitalization during the 5-year period from 1994 to 1998 on the dailymean levels of each pollutant, after accounting for seasonal and subseasonal fluctuations, non-Poisson dispersion, an

 


 

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A Placebo-controlled Trial of a HEPA Air Cleaner in the Treatment of Cat Allergy

Authors: Robert A. Wood

 

To evaluate the effect of a room high-efficiency particulate air (HEPA) cleaner on cat-induced asthma and rhinitis, 35 cat-allergic subjects who were living with one or more cats were studied in a doubleblind, lacebo controlled trial. After a 1 mo baseline period, subjects’ bedrooms were equipped with an active or placebo air cleaner for the following 3 mo. Evaluations included monthly measurement of cat-allergen levels, daily morning, afternoon, and nighttime nasal- and chest-symptom scores,

 


 

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Housing and Health: Time Again for Public Health Action

Authors: James Krieger and Donna L. Higgins

 

Poor housing conditions are associated with a wide range of health conditions, including respiratory infections, asthma, lead poisoning, injuries, and mental health. Addressing housing issues offers public health practitioners an opportunity to address an important social determinant of health. Public health has long been involved in housing issues. In the 19th century, health officials targeted poor sanitation, crowding, and inadequate ventilation to reduce infectious diseases as well as fire

 


 

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Use of unvented residential heating appliances -- United States, 1988-1994

Authors: Morbidity & Mortality Weekly

 

Many heating appliances rely on combustion of carbon-based fuels and therefore are potential sources of health-threatening indoor air pollution. Most combustion heating appliances are vented to the outside of buildings to facilitate removal of the products of combustion, which include carbon monoxide (CO), carbon dioxide, nitrogen dioxide, and water vapor ( 1 ). However, some combustion heating devices may be unvented (e.g., kerosene- and propane-fueled space heaters, some gas-fueled log se

 


 

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Deaths from motor-vehicle-related unintentional carbon monoxide poisoning --Colorado, 1996, New Mexico, 1980-1995, and United States,1979-1992

Authors: Morbidity & Mortality Weekly

 

Carbon monoxide (CO) is a colorless, odorless, toxic gas that is a product of incomplete combustion. Motor vehicles, heaters, and appliances that use carbon-based fuels are the main sources of this poison. Most fatal unintentional CO poisonings associated with motor vehicles are preventable and can result from differing mechanisms of exposure: 1) operation of a motor vehicle with a damaged or malfunctioning exhaust system and an inadequately ventilated passenger compartment, 2) operation of a mo

 


 

144.

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Use of Unvented Residential Heating Appliances -- United States, 1988-1994

Authors: Morbidity & Mortality Weekly

 

Many heating appliances rely on combustion of carbon-based fuels and therefore are potential sources of health-threatening indoor air pollution. Most combustion heating appliances are vented to the outside of buildings to facilitate removal of the products of combustion, which include carbon monoxide (CO), carbon dioxide, nitrogen dioxide, and water vapor ( 1 ). However, some combustion heating devices may be unvented (e.g., kerosene- and propane-fueled space heaters, some gas-fueled log sets,

 


 

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National Ambient Air Quality Standards for Carbon Monoxide-Final Decision

Authors: Environmental Protection Agency (EPA)

 

SUMMARY: Identical primary (health-based) and secondary (welfare-based) national ambient air quality standards (NAAQS) for carbon monoxide (CO) were promulgated in 1971 at 9 parts per million (ppm), 8-hour average, and 35 ppm, 1-hour average, neither to be exceeded more than one time per year. In 1985, the EPA announced the decision not to revise the primary CO NAAQS and at the same time to revoke the secondary CO NAAQS. In accordance with sections 108 and 109 of the Clean Air Act (Act), the EP

 


 

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Non-Fire Carbon Monoxide Deaths Associated with the Use of Consumer Products 2001 Annual Estimates

Authors: U.S Consumer Product Safety Commission

 

This report provides information about the number of unintentional non-fire deaths attributed to carbon monoxide (CO) poisoning that were associated with the use of consumer products in 2001. In 2001, there were an estimated 130 unintentional non-fire CO poisoning deaths associated with consumer products under the jurisdiction of the U.S. Consumer Product Safety Commission (CPSC). From 1999-2001, there were an average yearly estimated 126 unintentional non-fire CO poisoning deaths associated wi

 


 

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Non-Fire Carbon Monoxide Deaths Associated with the Use of Consumer Products

Authors: Susan A. Vagts

 

This report provides information about the number of unintentional non-fire deaths attributed to carbon monoxide (CO) poisoning that were associated with the use of consumer products in 1999 and 2000. From 1999-2000, there were an average yearly estimated 124 unintentional non-fire CO poisoning deaths associated with consumer products under the jurisdiction of the U.S. Consumer Product Safety Commission (CPSC). This average estimate is based on an estimated 109 and 138 non-fire CO poisoning deat

 


 

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Non-Fire Carbon Monoxide Deaths Associated with the Use of Consumer 1998 Annual Estimates

Authors: Jean C. Mah

 

This report provides information about the number of unintentional non-fire deaths attributed to carbon monoxide (CO) poisoning that were associated with the use of consumer products in 1998. According to the National Center for Health Statistics (NCHS) totals, between 1994 and 1998, the total number of unintentional non-fire CO poisoning deaths, including those associated with consumer products under the jurisdiction of the U.S. Consumer Product Safety Commission (CPSC) and those associated wi

 


 

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Unintentional Non–Fire-Related Carbon Monoxide Exposures — United States, 2001–2003

Authors: Centers for Disease Control and Prevention

 

Carbon monoxide (CO) is a colorless, odorless, poisonous gas that results from incomplete combustion of fuels (e.g., natural or liquefied petroleum gas, oil, wood, coal, or other fuels). CO sources (e.g., furnaces, generators, gas heaters, and motor vehicles) are common in homes or work environments and can put persons at risk for CO exposure and poisoning. Most signs and symptoms of CO exposure are nonspecific (e.g., headache or nausea) and can be mistakenly attributed to other causes, such as

 


 

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Carbon Monoxide Poisoning Associated with Use of LPG-Powered (propone) Forklifts in Industrial Settings - Iowa, 1998

Authors: Center for Disease Control and Prevention

 

In 1998, the Iowa Department of Public Health (IDPH) and Iowa State University (ISU) Extension Department, with the assistance of local health departments, investigated a series of carbon monoxide (CO) poisonings associated with the use of liquified petroleum gas (LPG)-powered forklifts in light industry. In each episode, forklifts emitting high CO concentration levels were operated in inadequately ventilated warehouse and production facilities, which resulted in high CO accumulations. Employe

 


 

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Carbon Monoxide Poisoning from Hurricane-Associated Use of Portable Generators — Florida, 2004

Authors: Centers for Disease Control and Prevention

 

The four major hurricanes that struck Florida during August 13–September 25, 2004, produced electric power outages in several million homes (1). After the hurricanes, the Consumer Product Safety Commission (CPSC) investigated six deaths in Florida attributed to carbon monoxide (CO) poisoning (CPSC, unpublished data, 2004). The Florida Department of Health and CDC analyzed demographic and CO exposure data from these fatal poisoning cases and from nonfatal poisoning cases among 167 persons treate

 


 

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Carbon Monoxide Poisoning Associated with Use of LPG-Powered (propone) Forklifts in Industrial Settings - Iowa, 1998

Authors: Center for Disease Control and Prevention

 

In 1998, the Iowa Department of Public Health (IDPH) and Iowa State University (ISU) Extension Department, with the assistance of local health departments, investigated a series of carbon monoxide (CO) poisonings associated with the use of liquified petroleum gas (LPG)-powered forklifts in light industry. In each episode, forklifts emitting high CO concentration levels were operated in inadequately ventilated warehouse and production facilities, which resulted in high CO accumulations. Employe

 


 

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Use of Carbon Monoxide Alarms to Prevent Poisonings During a Power Outage — North Carolina, December 2002

Authors: Department of Health and Human Services

 

Each year in the United States, approximately 500 persons die from unintentional carbon monoxide (CO) poisoning (1), often during electric power outages caused by severe storms (2–4). Use of residential CO alarms has been recommended to reduce the incidence of CO poisoning (5,6). In September 2000, Mecklenburg County, North Carolina (2002 population: 722,367), adopted a public health ordinance requiring a CO alarm in the majority of residences; all-electric residences without attached ga

 


 

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Indoor Air Pollution and Childhood Asthma: Effective Environmental Interventions

Authors: Ruth A. Etzel

 

Exposure to indoor air pollutants such as tobacco smoke and dust mites may exacerbate childhood asthma. Environmental interventions to reduce exposures to these pollutants can help prevent exacerbations of the disease. Among the most important interventions is the elimination of environmental tobacco smoke from the environments of children with asthma. However, the effectiveness of reducing asthmatic children's exposure to environmental tobacco smoke on the severity of their symptoms has not y

 


 

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Effects of Transplacental Exposure to Environmental Pollutants on Birth

Authors: Frederica P. Perera, et al.

 

Inner-city, minority populations are high-risk groups for adverse birth outcomes and also are more likely to be exposed to environmental contaminants, including environmental tobacco smoke (ETS), polycyclic aromatic hydrocarbons (PAHs), and pesticides. In a sample of 263 nonsmoking African-American and Dominican women, we evaluated the effects on birth outcomes of prenatal exposure to airborne PAHs monitored during pregnancy by personal air sampling, along with ETS estimated by plasma cotinine,

 


 

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Carbon Monoxide Poisoning Factsheet

Authors: U.S. Department of Housing and Urban Development Office of Healthy Homes and Lead Hazard Control

 

Did you know...? Over 500 people in the United States die from accidental carbon monoxide (CO) poisoning each year? Over 10,000 people seek medical attention for CO poisoning each year? Infants, people with lung or heart disease, or people with anemia are more seriously affected? What is it? Carbon monoxide is a gas that cannot be seen, smelled or tasted, and can be fatal when breathed. The symptoms that occur with carbon monoxide poisoning are similar to those of the flu and allergies.

 


 

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Radon Factsheet

Authors: U.S. Department of Housing and Urban Development Office of Healthy Homes and Lead Hazard Control

 

Did you know...? Radon is the second leading cause of lung cancer, after smoking? Approximately 20,000 cancer deaths each year are caused by radon? What is it? Radon is a radioactive gas that cannot be seen, smelled, or tasted and is found naturally around the country. When you breathe air containing radon, the sensitive cells in your airway are irritated, increasing your risk of getting lung cancer. Radon is found in the dirt and rocks beneath houses, in well water, and in some building mat