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Basics & Theory

ALA: Listing Of What Kinds Of Indoor Air Pollutants There Are
American Lung Association site covers types and solutions for indoor pollutants such as asbestos, biological, carbon monoxide, formaldehyde, lead, pesticides, radon, and second hand smoke.

ALA: Parts & Functioning Of Human Respiratory System
American Lung Association provides a diagram and description of the parts of the human respiratory system, and an tutorial on how lungs work.

CI: De-Mystifying Indoor Air Quality
Construction Instruction describes some causes of IAQ problems and what you can do about it.

GBA: Understanding Indoor Air Quality - People, Pollutant, Path, Pressure
Green Building Advisor article by Dr. Joe Lstiburek explains his preferred method of evaluating indoor air quality and why it works. He also points out that air contaminants are usually a symptom of the breakdown of building materials by water, heat, ultraviolet light, and ozone.

Health House: Overview On Where Home Pollutants Come From
Health House supplies an animated house diagram that demonstrates by room how many different house components and contents are possible sources of pollutants, and suggestions for each.

US EPA: Basic Introduction To Indoor Air Quality
US Environmental Protection Agency explains what causes indoor air problems, pollutant sources, amount of ventilation, IAQ and health, and additional resources.

US EPA: Glossary Of Consumer IAQ Terms
US Environmental Protection Agency alphabetical glossary of indoor air and IAQ terms used in homes.
Industry Information

AWMA: Listing Of Conferences On Air Quality
Air & Waste Management Association lists conferences relating to air quality, waste management and environmental management.

CMHC: Canadian Policy Options For Achieving Healthy Indoor Environments
CMHC report explores whether government regulations or voluntary initiatives are more appropriate for solving indoor air quality problems. (PDF)

NAP: Climate Change, Indoor Environment, Health
Institute of Medicine report Climate Change, the Indoor Environment, and Health decries how buildings that are being weatherized and made energy-efficient and air tight can be hazardous to one's health. It recommends that the US Environmental Protection Agency ensure that building weatherization and energy-efficiency efforts not generate new indoor health issues or worsen existing air quality. Free registration required. (PDF)

NRC: Survey Of Building Managers Knowledge Of IAQ
Canadian Committee on Indoor Air Quality and Buildings surveyed building managers to establish a baseline measure of their knowledge of indoor air issues and improvement strategies. (PDF)
Industry Sectors

RBS: Research On Infiltration, Ventilation & Indoor Air Quality
The Residential Building Systems group (RBS) works on problems associated with whole-building integration involving modeling, measurement, design, and operation. Most of its tasks focus on the movement of air and associated penalties involving distribution of pollutants, energy and fresh air.
Information Sources

ALA: Resources On Indoor Air Quality
American Lung Association has information and resources on indoor air pollutants, and air quality in the home, workplace, schools, and more.

Healthy Heating: Health Effects & Indoor Environmental Quality
Healthy Heating reviews recent advances in source characterization, exposure assessment, health effects associated with indoor exposures, and intervention research related to indoor environments.

Healthy Heating: Links To Research & Technical Resources On Indoor Air Quality
Healthy Heating provides a list of research and technical resource citations on indoor air quality for industry use.

NLM: Links To Resources On Indoor Air Health Information
US National Library of Medicine has links to indoor air health information resources, including overview, glossaries, research, specific environments, biological and chemical agents, topic-related searches of National Library of Medicine (NLM) resources and blogs, news, podcasts, and videos.

Perkins & Will: Substances Adversely Affecting Health & Environment
Perkins+Will online database describes building materials containing substances that are publically known or suspected to be associated with an adverse finding in relation to human and environmental health.

US DOE: EPA Indoor airPLUS Online Checklist & Resources
Building America Solution Center online Indoor airPLUS feature is an interactive checklist providing direct links to how-to guides in the Solution Center that provide step-by-step instructions for meeting each requirement in the Indoor airPLUS checklist. Along with instructions, each guide contains scopes of work, climate-specific recommendations, relevant codes and standards, research articles, CAD files, and related photographs and videos builders and contractors can use for training purposes.

US EPA: Resource Site On Indoor Air Quality
US Environmental Protection Agency has IAQ tools and information for homes, schools, and large buildings, on molds, moisture, asthma, secondhand smoke, radon, & lots more.
Issues & Performance

ASHRAE: Guideline 24-2015, Ventilation & Indoor Air Quality In Low-Rise
ASHRAE guideline provides information on how to achieve good indoor air quality (IAQ) that may go beyond minimum requirements. It also provides information relevant to ventilation and IAQ on envelope and system design, material selection, commissioning and installation, and operation and maintenance. This publication applies to ventilation and IAQ for human occupancy in residential buildings that are three stories or fewer in height above grade, including manufactured and modular houses.

ASHRAE: Standard 62.2-2016 Ventilation & Acceptable Indoor Air Quality in Low-Rise Residential Buildings
ASHRAE: Standard 62.2-2016 Ventilation & Acceptable Indoor Air Quality in Low-Rise Residential Buildings defines the roles of and minimum requirements for mechanical and natural ventilation systems and the building envelope intended to provide acceptable indoor air quality in low-rise residential buildings.

Building Science: Up In Smoke, Indoor Particulates
Building Science Corporation says in the typical home we experience a 10 fold increase in the quantity of indoor microscopic particulates in the less than 10 micron range principally due to cooking, candle smoke and electric resistance heating elements.

Canadian Lung Association: Fact Sheet On Scents & Fragrances
Canadian Lung Association has a factsheet, for those sensitive to scents and fragrances, which gives advice on choosing scent-free products, and workplace scent-free policy tips.

Ecohome: Health Impacts of Ambient Fragrances in Homes
Ecohome says not to try to mask the smell of airborne contaminants with more airborne contaminants.

Ecohome: House Plants Do Not Clean Air or Remove Toxins
Ecohome says the idea that house plants filter and clean indoor air is at best a mini-truth, and at worst a total myth, and like any pseudo-science health trend, it can have a negative impact as well.

Energy Vanguard: Which Indoor Air Pollutants Matter Most?
Energy Vanguard describes the indoor air pollutants that matter most.

GBA: Indoor Air Pollution is Largely Unregulated
Green Building Advisor says pollutants are all around us, but regulation of air quality largely stops at the front door.

Health Canada: Residential Indoor Air Quality Guidelines
Health Canada provides Residential Indoor Air Quality Guidelines that summarize the health risks posed by specific indoor pollutants, based on a review of the best scientific information available. They summarize the known health effects, detail the indoor sources, and where possible, provide a recommended exposure level below which health effects are unlikely to occur. The Guidelines are recommendations only and are meant to serve as a scientific basis for activities to reduce the risk from indoor air pollutants.

Health Canada: Warning About Ozone Generators
Health Canada is concerned about adverse health effects of ozone generators, warns the public not to use them in homes, and provides a list of affected brands and models.

Health Canal: Hidden Dangers In Air We Breathe
Health Canal says Berkeley Lab researchers are working on new building standards after discovering previously unknown indoor air pollutants.

IRC: Summary Of North American IAQ Guidelines & Standards
Canadian Institute for Research in Construction study lists various IAQ guidelines and standards for ventilation, common indoor contaminants, organic compounds, and labelling schemes for low VOC emitting products. 2005 (PDF)

REMI: IAQ Standards Dissect Freshness of Outdoor Air
REMI says there are new qualifiers for natural ventilation in commercial and multi-residential buildings.

US EPA: Indoor Air Plus Standard For IAQ In New Homes
US Environmental Protection Agency offers their Indoor Air Plus standard for building industry members that includes specifications, verification checklist, and builder & consumer brochures.

ACCA Now: 7 Habits Of Highly Effective Indoor Air Quality
ACCA Now describes seven habits of highly effective indoor air quality, which are the result of 15 years of seeking answers as to why clients were getting sick in their very own homes. They learned from detailed interviews with hundreds of families on what symptoms the human body experiences when something inside the home begins to poison them.

ALA: Clean Air At Home
American Lung Association provides information and resources on clean air at home, including sections on; Indoor Air Pollutants and Health, Tips to Keep Pollution Out, How to Know if Your Air Is Unhealthy, Ventilation: How Buildings Breathe, New Construction and Remodeling and Smokefree Policies in Multi-Unit Housing.

Building Science: Building Pressures & IAQ
Building Science online slide show presentation describes issues and considerations for building pressures and indoor air quality. (PDF)

Building Science: Dilution is not the Solution to Indoor Pollution
Building Science online slide show presentation from discusses issues and considerations for proper ventilation to provide good indoor air quality.

Building Science: Guide To Designing Ventilation For Good IAQ
Building Science guide Read This Before You Ventilate provides practical recommendations for meeting ventilation requirements including how to build a home enclosure, condition it, ventilate for good indoor air quality, and save energy. (PDF)

Building Science: IAQ & Air Tightness
Building Science online slide show describes the relationships between indoor air quality and air tightness. (PDF)

Building Science: Solving IAQ Problems
Building Science paper says whenever there is a complaint about air quality in a building the first thing folks want to do is test the air, which is absolutely the worst thing to do. Dr. Joe Lstiburek offers his recommendations for solving IAQ problems.

CI: Fundamentals of Indoor Air Quality
Construction Instruction online video describes fundamentals of indoor air quality control strategies.

CMHC: Architects Guide To Air Quality In Interior Environments
CMHC guide written for architects explains IAQ issues, sources and consequences of problems, design strategies, roles of architects, and gives sources of information. (PDF)

CMHC: Clean Air Guide To IAQ Problems In Your Home
CMHC guide contains a detailed list of possible sources of air contaminants, symptoms or problems that can result, corrective measures that should be taken, and a step-by-step clean air audit checklist. (PDF)

CMHC: Garage Performance Testing For IAQ
CMHC research report provides a basis for understanding the importance of attached garages as a source for indoor air quality problems, and identifies appropriate strategies for managing contaminant transfer in new and existing homes. (PDF)

CMHC: Guide On Mechanical Equipment For Healthy Indoor Environments
CMHC supplies this very detailed guide which has current information on heating, cooling, ventilation, filtration and water purification systems, and their effect on IAQ. (PDF)

CMHC: Study Of Indoor Environment In Mobile Homes
CMHC study investigated formaldehyde source strength, envelope air tightness, and mechanical air change rates in mobile homes. (PDF)

Ecohome: Protect Indoor Air Quality from Smoke during Wildfires
Ecohome says outdoor air becomes very polluted during wildfires, and keeping it outside should be the main priority.

Healthy Heating: HVAC Systems & Indoor Environmental Quality
Healthy Heating describes papers that present research based information on the influence of HVAC systems on the indoor environments (determined by the building scientists) and subsequently the potential influence on the occupants health (determined by the health scientists).

Healthy Indoors: Performing Indoor Air Quality Assessment
Healthy Indoors Magazine if you have an IAQ problem that needs solved, remember to use the scientific method of investigation and do not allow yourself to become fixated on one, single hypothesis when determining causation.

Healthy Indoors: Testing Pollution in Homes
Healthy Indoors shows a few consumer air quality monitors and compares their methods and accuracy, and interpretation of results.

HVAC School: Holy Trinity of IAQ Is Ventilation, Filtration, Humidity Control
HVAC School says the holy trinity of IAQ is ventilation, filtration, and humidity control. These are the three main processes available to technicians and homeowners to improve indoor environmental conditions. Technicians should have a thorough crash-course understanding of each and its importance to indoor air quality.

IRC: Effect Of Infiltration On Contaminant Concentrations
Canadian Institute for Research in Construction paper examines natural supply of outside air to dwellings and concentration of contaminants, assesses requirement for additional mechanical ventilation to meet existing standards, and quantifies energy implications of excessive infiltration and additional mechanical ventilation. (PDF)

IRC: Tool For Simulation Of IAQ Emissions & Ventilation Strategies
Canadian Institute for Research in Construuction software (IA-QUEST) has a database of emissions of 90 target volatile organic compounds (VOCs) from 69 building materials, and a simulation tool to predict the indoor air concentrations in a room for given materials from the database, and recommended ventilation strategies.

MCABC: Mechanical Contractors IAQ Considerations For Healthy Buildings
Mechanical Contractors Association of BC says the two main methods of controlling pollutant levels with the mechanical system include dilution through effective ventilation and removal through filtration.

Mechanical Business: Pets & IAQ Issues
Mechanical Business describes issues and considerations for indoor air quality challenges posed by pets.

NIST: Airflow & IAQ Analyses Capabilities Of Energy Simulation Software
US National Institute of Standards and Technology study Airflow and Indoor Air Quality Analyses Capabilities of Energy Simulation Software discusses the key question of whether an energy simulation program simulates airflow rates or considers them to be inputs. (PDF)

NIST: Free Software To Analyze And Predict IAQ
US National Institute of Standards and Technology free software CONTAM is a multizone indoor air quality and ventilation analysis computer program.

Southface Energy: Fact Sheet On Radon Resistant Construction For IAQ
Southface Energy Institute factsheet with drawings explains how to construct homes to deal with indoor air quality issues caused by radon. (PDF)

Southface Energy: Fact Sheet On Whole House Ventilation Systems For IAQ
Southface Energy Institute factsheet describes whole house ventilation systems for indoor air quality, including exhaust, supply, balanced, and heat recovery systems. (PDF)

University Of Wisconsin: Checklist For Assessing Indoor Air Quality Problems
University Of Wisconsin offers an online checklist for assessing indoor air quality problems includes health, high-risk residents, sources of indoor air pollutants, home inspection, comfort, and ventilation. (PDF)

US DOE: Fact Sheet On Spot Ventilation To Improve Indoor Air Quality
US Department Of Energy factsheet offers a brief overview of spot ventilation design considerations and issues, fan types, controls, specifications, & tips for installation. (PDF)

US EPA: Detailed Guide On Indoor Air Quality
US Environmental Protection Agency guide covers indoor air problems and sources, how to improve IAQ, source specific controls, offices, pollutants, and sources of more info.

US EPA: Explanation Of IAQ Concerns When Remodeling
US Environmental Protection Agency explains IAQ considerations when renovating a bathroom, kitchen, den, home office, HVAC, basement, or crawlspace.

US EPA: Healthy Indoor Environment Protocols for Home Energy Upgrades
US Environmental Protection Agency guide Healthy Indoor Environment Protocols for Home Energy Upgrades provides practical guidance on improving or maintaining indoor air quality and indoor environments during home energy upgrades, retrofits, or remodeling. (PDF)

US EPA: Summary Of Residential Air Cleaning Devices
US Environmental Protection Agency covers pollutant types, air cleaning strategies, types of air cleaners, effectiveness, health effects, installation, use, maintenance, guidelines for comparing, and references. (PDF)
Product Supply

Energy Circle: Online Guide To Indoor Air Quality Monitors
Energy Circle online Guide to Indoor Air Quality Monitoring Devices For Healthy Home provides a listing of new products, along with descriptions, prices and links to suppliers for more information.
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