DIY Box Fan Filter & Air Quality Experiment Here in San Francisco and surrounding areas kids are stuck indoors during this smoke wave caused by our wild fires with little or no air filtration. In San Francisco the school buildings are older and are not setup to have building wide air filtration. Nor can cash-strapped

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 also put up for sale and then become the responsibility of the homebuyer. Identifying a grow-op is often

How To Avoid Lead Dust During Home Renovations Containment, Wet Methods, HEPA Vacuum and Prompt Clean-up are the main work practices to follow in order to reduce exposure to lead dust during renovation. Sticking to these main concepts will help avoid the most common pathways of exposing your family to lead dust. Whether or not

Bay Area Air Quality Among Worst In Nation As an industrial hygienist it came as a surprise that the American Lung Association recently ranked Bay Area air quality among worst in nation for air pollution and particulates. Unhealthy levels of pollution were found in numerous parts of the country, but the San Francisco Bay Area

New OSHA Silica Testing Requirement in Effect OSHA has issued two standards (“rules”) to minimize exposure to respirable crystalline silica. One rule applies to construction trades, and the other for general industry and maritime workplaces. This blog focuses on the new OSHA Silica Testing requirements for the construction industry. September 23, 2017, kicked off enforcement for most

Dust and Smoke From Fires Far more people have been impacted by dust and smoke than fires themselves. If you were directly impacted by fires you should read Cleaning After Fire. For others in the region who have been more directly impacted by dust and smoke from fires, please consider these tips to minimize health

Cleaning After Fire The October 2017 California Fires in Northern California were devastating. Northern California will be dealing with the death and destruction of recent wildfires for years.  The immediate life-safety concerns about fire are obvious and frightening, but what many don’t realize is that returning to fire damaged buildings is also hazardous. Cleaning after

Environmental Compliance Testing Protects Occupant Health The word “compliance” may set our freedom loving hearts on high alert. Most Americans tend to push back when anyone tries to limit our personal liberties. But when it comes to our environment, compliance testing is necessary and can help expand our freedoms – Freedom from fear of drinking

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

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,