Safe Cookware

Friday, 22 November 2013 by
safe cookware

Does Stainless Steel Leach Chemicals? There is a lot of information in the blogosphere about health and safety in cookware, but when a client asked whether stainless steel leached dangerous chemicals, I was unable to find a quick answer to her question. I decided to look into the issue of safe cookware myself. In one 2013






Magnetic Fields – EMF Consulting

Wednesday, 23 October 2013 by
Magnetic Fields - EMF Consulting

When performing EMF surveys many “EMF consultants” only evaluate low-frequency magnetic fields.  When folks call and say they “have an EMF meter” and are measuring “high emf,” they generally have a Gauss meter and are measuring magnetic field field strength or magnetic flux. Most Building Biologists focus on Alternating Current (AC) electromagnetic fields, and in addition






Dirty Electricity from LEDs

EMI and LEDs –  Not all LEDs are the same! Electromagnetic Interference (EMI, aka: “Dirty Electricity,” or “High Voltage Transients”) is a term coined for quick transient pulses, harmonics, spikes and dips in the electrical power in a home’s wiring that deviates from a purely 60Hz sine wave.  These often occur due to computers, other






Energy Efficient Home

Wednesday, 19 June 2013 by
Energy Efficient LEED Home

A Comfortable and Energy Efficient Home through Science – Part 1 I am a big believer in using principles of science and an understanding of the sun’s movement through the sky to enhance your comfort while also making it a more energy efficient home. I am going to devote the next few blogs to giving






Green Business Certification

Thursday, 18 April 2013 by
san francisco green business

Green Business Certification This blog covers a few green business certification programs making a real difference in the world. Products are Organic Certified, FSC-certified, Green-Seal Certified, Cradle-to-Cradle Certified, etc.  Then there is LEED Certification and GreenPoint Rating for buildings. But what about a sustainable business certification? I’ll discuss Bay Area and San Francisco green business programs.






RoHS Compliant Healthy Appliances

This blog expands on an earlier post about the 25 Principles of Building Biology and the Healthy Home Standard Checklist. Here we’ll dive deeper into the Indoor Air Quality Checklist, and focus on best practices for healthy appliances and building materials. This is part 3 of 3 – IAQ Checklist. Here is what Building Biologists thought were the






Lutron Dimmer 2" away

EMF from LED Lights and Recessed LED lights Is there significant amounts of EMF from LED Lights? A designer client of mine had a job she was working on, where her client, a homeowner, was concerned about the magnetic fields in her home.  She was designing a remodel, which included the kitchen, and the designer had






EMF Rules of Thumb

Wednesday, 20 March 2013 by
EMF Rules of Thumb

Curious about general best practices for minimizing EMF exposure? This post is an excerpt from the Healthy Home Standard, and it includes many great EMF rules of thumb. This is part of a series about the Healthy Home Standard, and there will be another post on additional EMF best practices. The following EMF rules of






LEED EMF Credit Denied

Tuesday, 12 March 2013 by
LEED denies EMF credit

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






Healthy Building Rating System

Tuesday, 12 February 2013 by
Healthy Building Rating System

Healthy Building Rating System Is there a “Healthy Building Rating System?”  I asked the same question five years ago, when Healthy Building Science was just getting off the ground. Having been a LEED and “green building” consultant for many years, I knew of several health-related credits in the major green building rating systems. The major






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