San Francisco Water Supply, New Chemicals & Ground Water Testing For the first time in nearly nine decades, San Francisco is blending local groundwater with Hetch Hetchy Reservoir water, sourced from over 167 miles away.  For some, this change has been hard to swallow as San Francisco residents have long held bragging rights to exceptional

Dirty Electricity from LEDs Many folks interested high fidelity sound systems or low-EMF environments want to minimize electromagnetic interference (AKA: EMI, High-Voltage Transients, Electrical Noise, and Dirty Electricity) from lighting systems. Compact fluorescent lightbulbs (CFLs) – the curly pig tail variety with some mercury in them – are notoriously “dirty” and create significant EMI. As the

IAQ issues LEED Building – Part Two As a healthy building inspector and industrial hygienist, I have performed several pre-occupancy IEQ tests to the LEED standard and specifically for LEED certification, so I am familiar with both the testing and flush out option and IAQ issues LEED Building. The flush out option has been most

Air Quality Problems in the EPA’s San Francisco LEED EBOM Building IAQ Issues in a LEED Building Part ONE At the end of February 2016, NBC ran a segment investigating whether the EPA region 9 building, at 75 Hawthorne Street in downtown San Francisco, was a Sick Building. All answers pointed to yes. In the

During one of my many presentations on Building Enclosure Commissioning to architecture firms, I had a question from a concerned architect that I think echoes the concern in many professionals’ minds about mold. The architect in question was wondering if there is any way to guarantee “on paper” that mold will never occur in an

House Plants Can Contribute to Healthier Indoor Environments We spend about 90% of our time indoors. While inside, we are exposed to a variety of indoor air pollutants. Reducing or removing these pollutants and creating an optimal indoor environment is important to our health and well- being. House plants reduce VOCs and are an easy

WELL BUILDING STANDARD – How to apply to any project There is a new green certification in town. It is called the WELL Building Standard and it targets the ways in which buildings can enhance occupant health. Indicative of the increasing emphasis on how work areas are designed (i.e., Google, Facebook, Air Bnb, Linkedin), the

LEEDv4 IAQ Testing Requirements Industrial hygienists across the US have been watching the USGBC as they’ve updated the Indoor Air Quality (IAQ) Testing Credit for Post-Construction. LEEDv4 IAQ Testing requirements have changed since LEEDv2009. Many health and healthy building advocates hoped they would lower the allowable levels of formaldehyde, but due to industry uproar that did

Design as Therapy In the world of building we have control over what comes into contact with our senses. What we see, hear, smell & feel can all be addressed during the design of the building. For the most part these sensory cues are perceived subconsciously and exist in the background. But there are some

Indoor Air Pollution Near Busy Roads Freeways and other busy roads are sources of elevated auto emissions and Indoor Air Pollution. These emissions can be harmful to human health for both people on the roads and people working, walking, and living nearby. Nearly 20% of the United States population lives near a high volume road,