Unveiling the Hidden Threat: Legionella and Legionnaires’ Disease

Welcome to another enlightening blog post from Healthy Building Science about Legionella and Legionnaires’ Disease! We’re your trusted source for understanding the intricate world of indoor environmental quality. In this edition, we’re tackling a topic that might not be on your radar but should definitely be in your knowledge arsenal – Legionella and the potentially
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The Benefits of Building Green in Sonoma & Marin County

Green building refers to designing and constructing structures that are environmentally responsible and resource-efficient throughout their life-cycle, from planning to demolition. In Marin County, green building construction promotes the use of eco-friendly materials, efficient water and waste management systems, and the reduction of energy consumption and greenhouse gas emissions. It also prioritizes promoting indoor air
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Maintaining Healthy Indoor Air Quality During Fire Season

I’ve lived in California for over 30 years. Most of that time I never really thought about wildfires; their destructive flames seemed only possible in the movies. That has changed, not just for me, but for most Californians, who have become brutally aware of the very real threat wildfire poses. While fire itself is by
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Lead Dust Testing Outside?

Lead Testing using XRF Gun
Dust Settling on Outside Patio or Furniture? I was sitting on my porch in San Francisco watching kids play on the wooden deck and started to wonder, “is the dust on my porch contaminated with lead dust? If so, how best to clean it up?” So I did a little experiment and tested for lead
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Air Quality Index (AQI) and You

Air Quality Index (AQI) and You During the 2018 Paradise Fire smoke wave, many in the Bay Area obsessively checked online for air quality information and updates. Here is an overview of a handful of real-time air quality websites I found helpful and how they compare. Keep in mind that climate change plus newer and cheaper
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Wildfire Smoke and Indoor Air Quality

Wildfire Smoke
Bay Area Wildfire Smoke and Indoor Air Quality I am writing this on November 13, 2018.  For the past week the state of California has been cloaked in thick, noxious smoke from the wildfires burning out of control.  Northern California is mostly affected by the Camp Fire near Chico, CA and Southern California by the
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Cleaning Up a Cannabis Grow Operation

How to Clean Up a Weed Grow Operation
With the legalization of marijuana, some black-market growers are abandoning their illegal cannabis grow operations. Grow ops, often set up in rented properties, can leave a mess for landlords to clean up. Many of these properties are put up for sale and then become the responsibility of the home buyer. Identifying a grow op is 
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Interesting Things About EMF Testing

5 Interesting Things About EMF (Electromagnetic Fields): There are 5 different types of “EMF” that are commonly tested in buildings: low frequency magnetic fields low frequency electric fields “dirty electricity”, “high-voltage transients” or “electrical noise” radio frequency (RF) radiation alpha, beta and gamma ionizing radiation Each of the above types of radiation originates from unique
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6 Tips for Water Quality and Water Testing

6 Tips for Water Quality and Water Testing: Source matters – One of the most important variables in water quality is the source. Does the water come from an open water source like a lake or reservoir? Is it treated and delivered to a site via the municipal or county water service? Is it a spring
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Soil Testing and Contamination Top 10

Soil Testing
Top 10 things people should know about soil quality and soil contamination: Site history matters! If your lot is over an orchard, old landfill or leaking underground storage tank, there will likely be pollution indicators present. Building history matters. If there is (or was) a structure built before 1980 on the property, there have likely
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