We hear the term "Relative Humidity" quite often. It is generally viewed as a simple concept - how much moisture is in the air. It turns out that it's a bit more complicated than this (but not by that much).
Cashins & Associates Blog
Topics: industrial hygiene, indoor air quality, occupational health, OSHA, air testing, indoor air quality Issues, IEQ, Indoor Environmental Quality, IAQ, Air Quality, Certified Industrial Hygienist, diesel emissions
The word "soot" sounds so simple and harmless. To some, it conjures up images of campfires and candles, and perhaps a charming dance number from Mary Poppins.
We at Cashins & Associates have provided consulting services to many contractors working on LEED-certified projects. Most of the time, we help in the area of "Indoor Environmental Quality," which deals with the status of the indoor environment before and after construction.
Whether or not an interior space has good indoor air quality usually hinges on one thing: how much fresh air is being delivered.
There is currently a trend amongst building designers, builders, and even homeowners, to use products that are more environmentally friendly than some of their counterparts. One way such products have become more "green" is to say that it is "low VOC" or "zero VOC." This then begs the question: what are VOCs and why are they bad? What is their impact on indoor air quality?
To say that these compounds are organic means that they contain a carbon molecule. "Volatile" refers to the compound's potential to transform into a gaseous state at normal room temperature. We all know the smell of new paint as it is applied to walls, or that new car smell that lingers for a while and then dissipates, or the odor that comes along with the installation of new carpeting. These are all examples of organic molecules evaporating from the products and becoming airborne.
There are many potential indoor sources of VOCs. These include:
We get this question a lot: – “What in the World is an industrial hygienist?” No! We do not clean teeth!
Building owners and Facility Management Professionals are inundated day in and day out with many occupant requests. As facility management professionals are well aware, there is enough routine building maintenance to perform never mind the emergency situations that always seem to present themselves at the least opportune times. Then there are the non-descript indoor air quality issues that are not obvious or easy to identify. Occupants may indicate that they have a headache, itchy eyes, sore throat, or feel tired.
The EPA is recognizing January as National Radon Action Month. Radon is an odorless and colorless gas that can cause lung cancer. The EPA statistics indicate that radon is the leading cause of lung cancer in non-smokers. Approximately 21,000 people in the United States die from radon related lung cancer each year.