Air pollution ppt and pdf for free download study mafia. The substances considered benzene, carbon monoxide, formaldehyde, naphthalene, nitrogen dioxide, polycyclic aromatic hydrocarbons especially benzo apyrene, radon, trichloroethylene and tetrachloroethylene have. Show your calculations for each index card below, giving the amount of particulates in 1 m2. This activity demonstrates how visible and invisible pollutants can spread through the. The objectives of the indoor air pollution and health iapah research project were to quantify the levels of indoor air pollution iap in irish and scottish homes from indoor combustion sources, and to provide an estimate of the potential health burden, i. Cars, trucks, buses, small engines, and some industrial processes are major sources. These pollutants can harm your health and the environment, and cause property damage.
Whereas, indoor air pollution causes serious health effects, including cancer, premature. In developing countries, the main source of indoor air pollution is biomass smoke which contains suspended particulate matter 5pm, nitrogen dioxide no2, sulphur dioxide so2, carbon monoxide ca, formaldehyde and polycyclic aromatic hydrocarbons pahs. Exploring the consequences of climate change for indoor air quality. Developing indoor air quality guidelines 2 setting indoor air quality guidelines 4 preparation of the guidelines 7 combined exposures 9 use of the indoor air quality guidelines in protecting public health 11 references 1. Indoor air pollution in developing nations is a major health hazard. Since most people spend more time indoors than out. Breathing is essential for survival, but in some places the air quality poses. We may find it useful to combine the tools of the physical sciences with those of the. Indoor air pollution can pose a serious health threat. Other than nitrogen dioxide, carbon monoxide, and lead, there are a number of other pollutants that affect the air quality in an enclosed space. Contact us today to have your home assessed for indoor air pollutants and learn about our steps to remove them. Addressing the impact of household energy and indoor air pollution. They provide a scientific basis for legally enforceable standards. Indoor air pollution may arise from the use of open fires, unsafe fuels or combustion of.
Introduction although pollutant concentrations vary significantly from building to building, the levels of some common air pollutants often are greater indoors than outdoors. Living organisms can survive without water for some time but cannot survive without air because when we breathe then we intake oxygen from air and. Chemistry and environmental sciences indoor air pollution. When there are low levels of carbon monoxide in the air, it can lead to nausea and unconsciousness. There are, however, some source emission standards that specify maximum rates at which contaminants can be released from a source. Oct 21, 2012 air pollution air pollution defined as the of one or more contaminants or combinations in such quantities and of such durations as may be or tend to be injurious to human, animal or plant life, or property, or which unreasonably interferes with the comfortable enjoyment of life or property or conduct of business. Ozone is a lung irritant that can cause adverse health effects. Indoor air pollution environmental health student portal. Pollution levels in one home may be quite different from those in another, depending on the presence and usage of sources of pollutants and on the ventilation habits. This book presents who guidelines for the protection of public health from risks due to a number of chemicals commonly present in indoor air. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The causes of indoor air pollution comfy home corner.
Business parks that merge industrial and nonindustrial. In the past, asbestos was one of the main indoor air pollutants, but this has been. Learn more about these 10 common indoor air pollutants. Human exposure to indoor air pollutants is difficult to quantify due to the fact that it is largely determined by microenvironmental characteristics. Tobacco smoke is one of the most significant indoor sources of air pollution. Indoor air pollutants and their emissions sources, adapted from jones, 2002. This page provides a list of links for other air pollutants and indoor air pollutants. An official website of the united states government. Indoor air pollution is when pollutants contaminate air indoors and is a very dangerous problem, claiming more than 2 million lives each year. The european commission has developed a series of framework directives for controlling ambient air pollution and monitoring concentrations. Volatile organic compounds originate mainly from solvents and chemicals. Major air pollutants pollutant description sources effects release carbon monoxide co co is an odorless, colorless, and poisonous gas produced by the incomplete burning of fossil fuels gasoline, oil, natural gas.
When we think of polluted air, the first images that come to our minds are often big factories pumping out smelly clouds or old cars puffing out grey exhaust. Outdoor air pollutants montgomery county, maryland. Indoor air quality iaq is the air quality within and around buildings and structures. Pdf causes, consequences and control of air pollution. However, it is not necessarily true that the effects noted occur at the pollutant concentration levels typically found in the home. According to the environmental protection agency, the top five air quality problems in the u. Indoor air quality is influenced by concentrations of outdoor air pollutants, indoor sources of pollution, characteristics of the building and the habits of the residents.
An aqi value of 100 generally corresponds to the national ambient air quality standard naaqs for the pollutant, which is the level the united states. Indoor air pollution can begin within the building or be drawn in from outdoors. Pdf on feb 3, 2012, klara slezakova and others published indoor air. Outdoor ozone and building related symptoms in the base study pdf.
High temperature and humidity levels can also increase concentrations of some pollutants. Household indoor air pollution new who indoor air quality guidelines. In some cases, indoor air pollutants may even be 100 times higher than outdoors. The fact that indoors air quality is not an exact reflection of the ambient air quality was recognized only recently. Dangers of indoor air pollution the new york times. Choose from 500 different sets of indoor air pollution flashcards on quizlet. This definition implicitly acknowledges that some substances that are considered to be air pollutants are present naturally. Electrostatic air cleaners can filter out many air pollutants in the home, but they also create ozone, itself a respiratory irritant. Mar 15, 2017 proper air filtration in your homes hvac system is the answer to biological contaminants.
Household fuel combustion set emissions thresholds, by which the cleanest cookstove and lighting technologies may be identified. Radon 10 common indoor air pollutants howstuffworks. In 1970, congress passed the clean air act that established national air pollutant standards for 6 criteria pollutants. Indoor pollutants and sources indoor air quality iaq. Jun 05, 2015 identify possible sources of indoor air pollution. Criteria pollutants a group of air pollutants which are deemed to have human health andor environmental effects and as such are regulated by the setting of air quality standards. Chemistry and environmental sciences indoor air pollution objectives. Pdf indoor air pollution has occurred since prehistoric times when people moved to live. Howard airs hvac technicians can help phoenix homeowners find relief from poor indoor air quality.
The effectiveness of ion exchangers as air cleaners is. Students will learn about indoor air pollutants the types and legal concentrations and affects on human health. Benzene 15 general description 15 indoor sources 15 pathways of exposure 17 indoor concentrations 18. Learn indoor air pollution with free interactive flashcards. Sources and health impacts pollutants from natural sources pollutant major sources in the home possible health impacts radon colorless, tasteless, and odorless gas that comes from the radioactive decay of uranium or radium. Identify major indoor air pollutants describe sources of indoor air pollutants identify the people who are most susceptible to indoor air pollution explain the health consequences of indoor air pollution. Sources and emissions of air pollutants learning objectives by the end of this chapter the reader will be able to. Indoor air pollution by formaldehyde in european countries. Who air quality guidelines, global update, 2005 whoeurope. Indoor air pollution numerous forms of indoor air pollution are possible in the modern home. Pollutants that originate outside get a lot of attention from.
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. Tightly constructed buildings, for instance, reduce the amount of fresh air for dilution and for purging out of pollutants, which, in turn, builds up high levels of toxic substances indoors. To ensure the protection of public health, it is necessary to combine all our available. Definition of outdoor air pollution outdoor air pollution. Epa studies indicate that the levels of many air pollutants may be two to five times higher in indoor air than outdoor air. However, indoor air pollutants can be even more dangerous than outdoor air pollution. Basic information on pollutants and sources of indoor air pollution. The high risk of death which comes with this air pollutant is the reason why people are advised to have a carbon monoxide detector in their homes.
Air plays a vital role not only in nature but also in the lives of human beings and all living organisms. This book presents who guidelines for the protection of public health from a number of chemicals commonly present in indoor air. Indoor air pollution, health and economic wellbeing. In the united states, these include carbon monoxide co, nitrogen oxides nox, ozone o 3, particulate matter, sulfur dioxide so2, and lead. Oecd glossary of statistical terms indoor air pollution. In the united states there are no federal standards that have been developed specifically for indoor air contaminants in nonoccupational environments. The students will also determine the pathway for the formation of radon. Pollutant sources there are many sources of indoor air pollution in any home. Epa calls these pollutants criteria air pollutants because it regulates them by developing human healthbased andor environmentallybased criteria sciencebased guidelines for setting permissible levels. Outdoor air pollution is a complex mixture of several pollutants.
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