Odor Control News & Commentary

As soon as you sense the presence of molds within your premises, be careful. Common symptoms of mold growth are black or white specks on wet walls, ceilings, carpet, drywall etc. A musty odor also alerts you about a possible mold growth. Sometimes, you may observe allergic symptoms among family members or co-workers before noticing the spots and odor. Molds should always be removed before they take a bigger shape.
Mold control program begins with inspection and sampling, and then comes the remediation. Let’s discuss about the process in brief.

Big ag has fallen in love… Big ag loves studies. For big ag, studies are a great excuse to delay regulation. The the bounty of this love is a disaster for those of us who care about clean air and water.

Here in Wisconsin the most recent study and delay example is the “Ag Waste Rule”. Ammonia and hydrogen sulfide from factory farms have the potential to negatively impact human health. Many of us have experienced the stench arising from these concentrations of thousands of animals. I maintain that “Mother Nature” gave us a sense of smell to aid our survival. Wisconsin citizens were well served in 2004 when the DNR and legislature agreed to implement air emission rules that would include factory farms by 2008. Wisconsin industries emitting ammonia and other pollutants are already regulated, but agriculture has an unexplained exemption. Succumbing to pressure from the agriculture lobby, our DNR delayed these new rules until 2011 citing the need for more study (of Wisconsin’s 14,000 dairy farms, only 150 or so of the very largest would have been affected). Based on what we already know and from the approaches taken in Iowa and Minnesota, our DNR was in a good position to implement in 2008. Shame!

Delay resulting from additional study of manure spreading in karst geographic areas is another desire of big ag. The Northeast Wisconsin Regional Karst Task Force made recommendations more than a year ago in a peer reviewed report that included sever spreading restrictions. Scientists with groundwater, geology, and karst knowledge were part of the task force membership. Agriculture was also represented. Big ag’s lobbying groups didn’t like the results and have asked the State for more study by organizations like Discovery Farms. Shame!

It isn’t just Wisconsin where big ag is in love with studies. Iowa’s Ag Secretary consulted with corporate farming groups and then proposed an odor study having the effect of delaying any real action to control odor by the state. A month ago Iowa environmentalists were celebrating the apparent rejection by legislators of this proposed study on CAFO stench. The apparent win was short-lived… big ag lobby groups have now succeeded in pushing the 23 million dollar study through the Iowa House. They also made sure the study wasn’t funded so it will simply stop regulation.  Shame!

Musty odors are caused by volatile organic compounds. While mold can be a source of these compounds, they can also come from other sources. If there is no water anywhere in the basement, then musty odors are probably not caused by mold.  If there is water, mold probably plays a role.

Actively growing mold produces a wide range of volatile compounds, some of which can impart musty odor. Many of these compounds can be detected by the human nose at very low concentrations. Mold colonies do not have to be sporulating to release these compounds, so that nearly invisible mold can be the source.

When you see carpeting on a basement floor, it may be safe to assume that it is the source for any musty odors that might be present, even if the carpeting looks new and dry and clean. Removal of the carpeting can sometimes end the odor problem. Mold does occur behind paneling if the wall is damp, and drying the wall is the only solution. Such drying may or may not involve removing the paneling. In both these cases, airborne spore concentrations can be very low. This is an indication either that the mold producing the odor is not sporulating, or that any spores that are produced are trapped and not entering the air.

Wet concrete has an odor that could be interpreted as musty. While mold can grow on the surface of concrete, it isn’t always present, and just the dampness may be producing odors. Standing water usually doesn’t result in mold growth, but bacteria may grow and produce volatiles with musty odors

Dehumidification is one means for controlling both mold and damp concrete odors discussed above.

Some dry environments can have a musty odor. One cause of this odor can be called the Antique Shop Odor and can be a result of degradation of paper and very old wood.  Old waxes and polishes can also contribute.

As always It’s Best To Test

Call me with any Radon or Mold questions you may have.

Joseph Burke

RADON AND MOLD TESTING SERVICES

Phone  630.935.2888

Web:  RadonAndMoldTesting.com



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