EMF LEED Credit Citing the need for more research on human health effects, and questioning long-established Building Biology approaches to minimizing electromagnetic fields (EMF), the USGBC and denied a recent application for a EMF LEED Credit. Healthy Building Science was the LEED for Homes (LEED-H) consultant for two residential properties (CA and NH) that intended
Mold Testing Air Quality Lab Interpretation People with asthma and mold allergies are the first to ask about mold testing. Since their symptoms are primarily respiratory, it is only logical they ask for “air quality testing.” Other individuals looking for peace of mind or suffering much more severe symptoms sometimes also ask for mold testing air
Minimize EMF Exposure The following article was first printed on January 30th, 2013 in the Los Altos Town Crier A growing number of Americans are concerned about electromagnetic fields (EMF) but don’t know what to do to mitigate the problem and minimize EMF exposure. Many European and Asian countries have enacted more stringent EMF regulations
- Published in Environmental Testing
Fluoride, Health, and Drinking Water The addition of fluoride to the drinking water supply began in the 1950s as a method to fight against tooth decay. Currently, 11 countries in the world have more than 50% of their population drinking fluoridated water. These include Singapore (100%), Hong Kong (100%), Brunei (95%); Australia (80%), Malaysia (75%),
Exposure Limits in US – Alphabet Soup Exposure Limits in US should be super simple. “Do not exceed #.” But it’s a government regulatory issue… so how simple could it be? Here is a summary of the primary exposure limits used by our government and industrial hygienists in the United States. Permissible Exposure Limits (PELs) – OSHA
What does “100% Lead Free” really mean? What it lead-free ? The EPA’s lead rule sets an action level of 15 parts per billion (ppb) and they estimate that more than 40 million U.S. residents use water “that can contain lead in excess of 15 ppb. If tests show that the level of lead drinking
Mold Testing is a Bad Idea? “Mold testing” is commonly requested. People like the idea of collecting samples and getting actual data back from a microbiological lab, but mold testing results are highly variable and easily misinterpreted. For there to be statistical significance in the results there must be many samples collected, and most project
Air Quality Testing San Francisco – Green Festival For the two days we wore passive vapor monitor badges at the Green Festival-SF. This blog about Air Quality Testing San Francisco – Green Festival provides a summary of the air quality sampling methods, lab analysis, and lab results. Air Quality Sampling Methods Vapor monitors offer an
Toxic Building Materials in Residential Construction A reporter from Angie’s List Magazine just asked for my opinion on toxic building materials in residential construction… and while writing my response I realized there was some valuable information to share. Hopefully Angie’s List Magazine will decide to run the piece. Here is my response to some great
Safer Foam Insulation Flame Retardants Doing More Harm than Good? Safer foam insulation is on its way to becoming a reality in the US construction industry. Momentum for eliminating unnecessary flame retardants from buildings is growing exponentially. The fire safety benefit isn’t adding up to the known hazards associated with halogenated flame retardants. Leading the
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