Breathe Clean Air Air and Breathing

Lung Diseases

Air Quality

Some Topics

  • Air Quality Inside Buildings

    Air pollution, both indoor and outdoor, is a significant cause of health problems worldwide. Home environments contain airborne allergens, infections, irritants and toxins that can reduce the quality of life and cause disease. Indoor work and living environments concentrate air contaminants and create "sick buildings."

    Every year, approximately 1,000 new chemicals are developed and added to the 70,000 chemicals, 9 million mixtures, formulations and blends of chemicals already in commercial use. Some of these chemicals are purchased for home use, others pollute work environments. Workers contaminated with industrial and agricultural chemicals bring some home on the clothing and skin. Few of these chemicals have been adequately assessed for their potential toxicity, either individually or in combination with other chemicals.

    Indoor air is often more polluted than outdoor air. A decrease in indoor air quality is the result of reduced ventilation and efficient construction practices, sealing homes and office buildings from the outdoor environment. Reduced ventilation contributes to the "Sick Building Syndrome" (SBS) with symptoms such as headache, fatigue, malaise, mental confusion, eye and throat irritation, coughing and wheezing.

    Air inside buildings contains local aerosols that are more concentrated than outdoor air. The term "dust" refers to the larger particles in the aerosol that settle on walls and furniture. A smoker in the living room of a house produces a toxic aerosol that permeates the rest of the house. Smoke particles settle on walls and every object in a room so that a smoker leaves a trail of contamination that non-smokers smell as soon as they enter the room.

    Indoor air contains a living aerosol of microorganisms that infect or trigger allergic reactions. Spores of bacteria and fungi are microscopic and may persist for months or years.

    The abundance of microorganisms, even in a very clean house, surprises most people who have tests done to assess air quality. Insects and their excretions and body parts form part of the aerosol. Allergy to dust mites is often recognized. Other mites are common and are usually not recognized.

    See Airborne Fungal Diseases

    Chemicals Found in Indoor Air

    Many hazardous chemicals are used at home. Studies have shown that cancer risks from airborne chemicals can be higher for home environments than for hazardous waste disposal sites. The concentration of chemicals is determined by the airflow (or lack of it), heating appliances, the use of cleaners, paints, adhesives, types of furnishings and the smoking habits of the inhabitants.

    1. 1,1,1-Trichloroethane Benezene
    2. Formaldehyde Alipthatic Hydrocarbons
    3. Chlordane Chloroform
    4. Styrene Trichloroethylene
    5. Toluene Xylene
    6. Dichloromethane Tetrachloroethylene
    7. Alcohols N-Hexanol
    8. Ethyl Acetate Acetone
    9. Radon 4-Phenylcyclohexene
    10. Carbon Monoxide Carbon Dioxide
    11. Polycyclic Aromatic Hydrocarbons

    There are 80 or more main chemical components found in cigarette smoke and a wide variety of toxins created from the degradation and out-gassing of synthetic and treated materials and plastics. Indoor air is often a greater source of exposure to hazardous chemicals than is outdoor exposure according to a acareful study by the US Federal Environmental Protection Agency (EPA) The EPA looked for 20 chemicals in a variety of locations and found 11 chemicals at all locations - 1,1,1-trichloroethane, p-xylene, ethylbenzene, tetrachloroethylene, o-xylene, p-dichlorobenzene, chloroform, trichloroethylene, and carbon tetrachloride.

    In New Jersey, nighttime readings of domestic indoor air exceeded outdoor air concentrations in 28 out of 30 cases. In North Carolina and North Dakota the indoor air pollution was even stronger (because in NC and ND the outdoor air is cleaner): in 17 out of 18 cases, inside air exceeded the levels found in outdoor air, usually by a factor of 5 to 10. The chemicals on peoples' breath were closely correlated with their activities of the previous 12 hours. Averages for personal air exceeded outdoor averages for every chemical in every season, usually by a factor of 2 to 5. This means that, in a typical day at work and at home, people breathed in 2 to 5 times more hazardous chemical than they would have if they had sat in their back yards for 24 hours. This was true even if the people lived within a mile of a source of industrial air pollution.

  • Discussions of Environmental Science and Human Ecology were developed by Environmed Research Inc. Sechelt, B.C. Canada. Online Topics were developed from two books,
    Air and Breathing
  • The Environment
  • Air and Breathing helps you understand breathing, respiratory diseases, air quality issues, airborne infections and other causes of breathing disorders. You will find detailed information about the respiratory tract, atmosphere, air pollution, airborne infection, air quality allergy, lung diseases and airborne hazards at home.
    2018 edition 106 pages.
    Air and Breathing Print Edition for Download.

    The Environment

    In the book, The Environment, you will find detailed information about the weather, climate change, soils, forests, energy sources, oceans, the atmosphere, air pollution, climate change, air quality and the politics of the environment. The Environment is available as a Printed book or as an eBook Edition for download.

    Download The Environment as an eBook

    The Author Stephen J. Gislason MD

    Food Causes

    Not all respiratory diseases are caused by airborne pathogens. If asthma, bronchitis and/or nose sinus congestion is chronic or attacks occur frequently in all seasons and are not related to airborne exposure, then consider delayed pattern food allergy as the cause and do diet revision using the Alpha Nutrition Program.

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    Alpha Nutrition Program
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    Alcohol Problems
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    Managing Diabetes 2
    Eating and Weight
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    Human Brain
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    Digestive Disorders
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    Heart & Arterial Disease
    Immunology Notes
    Inflammatory Arthritis
    Nutrition Notes

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