Understanding indoor air quality has never been more crucial in today's increasingly sealed and synthetic environments. Before improving your indoor environment, you need to understand the terminology that defines these issues.
Understanding indoor air quality has never been more crucial in today's increasingly sealed and synthetic environments.
Before improving your indoor environment, you need to understand the terminology that defines these issues.
This comprehensive guide breaks down the essential indoor air quality terms that every homeowner and building manager should know. Armed with this knowledge, you'll be better equipped to identify potential problems and take meaningful steps toward creating a healthier indoor environment.
Understanding Indoor Air Quality Terms: The Foundation of Environmental Health
Indoor air quality directly impacts your physical wellbeing, cognitive function, and overall quality of life. With most Americans spending approximately 90% of their time indoors, the air you breathe at home and work deserves your attention.
Poor indoor air quality can lead to both immediate and long-term health effects, ranging from minor irritations to serious chronic conditions. By familiarizing yourself with these key indoor air quality terms, you'll gain valuable insights into potential issues affecting your living or working space.
Indoor Air Quality Terms: Sick Building Syndrome (SBS)
Sick Building Syndrome occurs when 20% or more of a building's occupants experience health problems directly related to time spent in that building. What makes SBS particularly challenging to address is that no specific illness or cause can be easily identified.
Key indicators of Sick Building Syndrome include:
Symptoms appear while in the building and improve after leaving
Symptoms include respiratory difficulties, headaches, dizziness, skin rashes, and fatigue
Multiple occupants experience similar symptoms
Traditional medical tests often show no abnormalities
Building systems appear to function properly despite complaints
Several factors contribute to SBS, including inadequate ventilation, chemical contaminants from indoor and outdoor sources, and biological contaminants like mold and bacteria. Modern construction practices that create tightly sealed buildings with reduced air exchange rates can exacerbate these issues by trapping pollutants indoors.
Indoor Air Quality Terms: Building Related Illness (BRI)
Unlike SBS, Building Related Illness refers to a diagnosable illness with identifiable symptoms and a clear cause directly attributed to airborne building contaminants. These conditions typically require medical treatment and don't simply resolve by leaving the building.
Common causes of Building Related Illness include:
Chemical overexposure from new construction materials, renovations, maintenance products, or pesticides
Biological contamination from viruses, bacteria, and mold, often spread through HVAC systems
Electromagnetic radiation exposure from building technologies
Long-term exposure to hazardous materials like asbestos or lead
Examples of specific Building Related Illnesses include Legionnaires' disease, hypersensitivity pneumonitis, and humidifier fever. These conditions can be diagnosed by medical professionals and traced to specific building contaminants.
Indoor Air Quality Terms: Environmental Illness
Environmental Illness develops from exposure to toxins in specific environments—whether at work, home, or during recreational activities. The distinguishing feature is that symptoms arise directly in response to particular environmental exposures.
These conditions often develop when the body's natural detoxification systems become overwhelmed by toxic burden from multiple sources, including:
Indoor air pollutants
Water contaminants
Food additives and pesticides
Electromagnetic fields
Synthetic chemicals in building materials
Creating a clean, low-toxicity home environment is essential for recovery and symptom management for individuals dealing with environmental illness.
Indoor Air Quality Terms: Multiple Chemical Sensitivity (MCS)
Multiple Chemical Sensitivity—also referred to as Chemical Hypersensitivity or Idiopathic Environmental Intolerance (IEI)—is a chronic condition where individuals experience symptoms in response to low levels of chemicals that most people tolerate without issue.
MCS can develop following:
Acute chemical exposure incidents
Prolonged low-level exposure to chemicals
Time spent in water-damaged or contaminated buildings
Symptoms vary widely but commonly include headaches, rashes, muscle pain, fatigue, cognitive difficulties, and respiratory issues. These symptoms typically occur in response to everyday chemicals like fragrances, cleaning products, new furniture, and building materials.
Indoor Air Quality Terms: Electromagnetic Hypersensitivity (EHS)
As our environments become increasingly saturated with wireless technology, more people are reporting sensitivity to electromagnetic fields (EMFs). Electromagnetic Hypersensitivity is characterized by symptoms that occur in response to exposure to electromagnetic radiation from man-made sources.
Common EMF sources in buildings include:
Wi-Fi networks
Cell phones and cell towers
Smart meters
Household appliances
Electrical wiring issues
Bluetooth devices
Symptoms can range from headaches, fatigue, and sleep disturbances to more severe neurological and cardiovascular effects. While conventional medicine is still catching up to this emerging health concern, many individuals report significant symptom improvement when reducing EMF exposure.
Indoor Air Quality Terms: Volatile Organic Compounds (VOCs)
Volatile Organic Compounds are gases emitted from certain solids or liquids, including many common household products and building materials. These chemicals can have short and long-term health effects, with concentrations typically higher indoors than outdoors.
Major sources of VOCs include:
Paints and lacquers
Paint strippers
Cleaning supplies
Pesticides
Building materials
Furnishings
Office equipment (copiers, printers)
Craft materials
Health effects may include eye, nose, and throat irritation, headaches, loss of coordination, nausea, and damage to liver, kidney, and central nervous system. Some VOCs are known carcinogens.
Reducing VOC exposure is a core principle at Senergy360, where we emphasize low-VOC materials and finishes in all our construction and renovation projects.
Indoor Air Quality Terms: Mold and Mycotoxins
Mold growth in buildings can release spores and mycotoxins that significantly impact indoor air quality and occupant health. These biological contaminants thrive in damp environments and can spread through HVAC systems, affecting entire buildings.
Key facts about mold and indoor air quality:
Mold requires moisture to grow
Hidden mold behind walls can release spores into living spaces
Some molds produce mycotoxins that can cause serious health effects
Reactions to mold exposure vary greatly among individuals
Proper remediation requires addressing both the mold and the moisture source
Taking Action: Improving Your Indoor Air Quality
Understanding these indoor air quality terms is just the first step. Here are practical strategies to improve your indoor environment:
Increase ventilation to dilute indoor pollutants and introduce fresh outdoor air
Control humidity levels (ideally between 30-50%) to prevent mold growth
Choose low-VOC products for building materials, furnishings, and cleaning supplies
Implement regular maintenance of HVAC systems and air filters
Consider air purification technologies appropriate for your specific concerns
Reduce EMF exposure by creating low-EMF zones, especially in bedrooms
Address water intrusion immediately to prevent mold growth