Air Quality Index
What is CO2?
Carbon Dioxide or CO2 is a greenhouse gas that is natural and harmless in small quantities but as levels rise it can be dangerous to your health. Most commonly produced by the air we exhale, CO2 levels concentrate indoors with less ventilation. It is one of the most important gases on the earth because plants use it to produce carbohydrates in a process called photosynthesis. 350-1,000 ppm concentrations are typical of occupied indoor spaces with good air exchange.
What are TVOCs?
TVOCs stands for Total Volatile Organic Compounds, which are the total amount of any emitted gases with short or long-term health effects. TVOCs can cause serious health effects in both the short and long term. Health effects vary from minor eye, nose and throat irritations all the way to liver and kidney damage or cancer, depending on the level of exposure. Action level of 0.50 mg/m3.
Formaldehyde (HCHO) is the most important carcinogen in outdoor air. The World Health Organisation guideline for indoor air formaldehyde (HCHO) concentration is 0.10 mg/m3. The California Air Resources Board recommends an “action level” of 0.10 mg/m3 and a “target level” of 0.05 mg/m3 or lower for homes. Average concentrations in older houses with UFFI are generally well below 0.10 mg/m3.
Guidline for indoor air formaldehyde (HCHO) concentration is 0.08 ppm (0.1mg/m3). The California Air Resources Board recommends an “action level” of 0.1 ppm and a “target level” of 0.05 ppm or lower for homes. ... Average concentrations in older houses with UFFI are generally well below 0.1 ppm. The World Health Organization