Guest guest Posted September 21, 2006 Report Posted September 21, 2006 Lori, Excellent questions! That's what we need more of rather than reaching easy conclusions on a complex topic. > Hi, thanks for these explanations. Can you explain more about the > cladosporium? Cladosporium is the most common mold outside and inside. The fact that it is higher than other types isn't important in itself. Other factors have to be considered. Google Cladosporium and others for detailed info. Dr Fungus, Aerotec, AMSL and EMLab sites have excellent information. > I thought from what I read that levels should always be > higher indoors than outdoors. Indoor vs outdoor is the most common comparison but also one of the most inaccurate ones. For example, there are at least 3 beliefs about what the comparision should be. One is 10 times higher indoors. Another is equal. Another is 6-7 times less indoors. Take you pick. I would say higher indoors than outdoors if it is raining or snowing. I would say lower indoors if it is dry and windy outdoors. > Are you saying that the spores from > outside were washed out and so these higher inside levels are > meaningless? How many particles are in the shower stream when you are taking a shower? Same thing outside when it is raining. So what would you be comparing the inside counts to? Likewise, as above, if outside is windy and dusty what are you comparing the inside levels to? Now, let's get a little more complex just for the fun of it. If you want to compare inside to outside mold levels and the outside levels are always changing on an irregular basis you have to take the sample indoors at the equivalent time outdoors. So you have to know how long it takes the outside air to get inside. Oh, but what if the house is under pressure? That would block the outside air from coming in and the comparision would again be meaningless. Finally - not really, but I don't want to create more confusion - remember past postings by Jeff May about how outdoor mold is often found as single or double spores but indoor mold is usually in large clusters. That will give you different counts on culture plates because both 1 single spore and a cluster of 20 spores will grow only 1 colony. > Is cladosporium one of the dangerous molds? Cladosporium is usually the most common mold found outdoors and indoors. We are all exposed to Cladosporium all the time. If it were one of the dangerous molds then the whole population would probably be very sick. Exposure to high levels from a source of Cladosporium growth could be a problem. But others are usually more so. There is also the opinion of some experts that another common mold, Alternaria, may play the key role in sensitizing people to other molds. > Are there > any molds that are not dangerous? EPA and CDC say ANY mold can cause reactions to an individual that is sensitized to it. (That is not the same as saying " any mold can cause reactions in everybody). I may be exquisitly reactive to Cladosporium but not Penicillium. You, on the other hand, may be just the opposite. Then there are combinations of allergens. I don't mean to imply that all this complexity means we are all hallucinating and that our reactions are not real. On the contrary. But I am saying that out of the 120,000+ mold species (not counting the macro-fungi) all we ever see are a few hundred. This would be like figuring out what causes bumps on our arms by sampling for insects when we need to sample for mosquitos or ticks or laundry detergent. The state of the art for mold is still incredibly general. Carl Grimes Healthy Habitats LLC Quote
Guest guest Posted September 21, 2006 Report Posted September 21, 2006 > Dr Fungus, Aerotec, AMSL and EMLab sites have > excellent information. I would be very cautious in recommending Dr. Fungus as a point of reference regarding toxic mold. He's very biased. Take a look at some of their statements on the follwing page: http://www.doctorfungus.org/mycoses/environ/mould_disease.htm#toxins ----------------------------------------- Thus, while it is clear that S. chartarum produces toxins [2293] and that at least some strains can cause disease in animals [1035, 1628], it is simply not at all clear whether it is able to produce these symptoms in humans [1518]. What lessons can be learned here? First, it is indeed clear that mycotoxins are real and that they can produce dramatic symptoms. However, clear linkage of a toxin to a disease is difficult. How do I get rid of mycotoxins? We do not know of any specific recommendations in this regard, nor do special steps appear necessary. Mycotoxins are simply chemical compounds released by fungi onto the surface where the fungus is growing. Cleaning procedures that are able to remove other surface contaminants would seem very likely to remove any relevant amounts of mycotoxins. As we state elsewhere, you are done with mould cleanup when (a) there is no visible mould, ( there are no mould odors, and © you have fixed the moisture/water problem so that it will not recur [93]. We are very often asked about cleaning of colonized porous materials such as clothing. As stated so nicely in the ACOEM's position statement [80], " Colonized porous materials, e.g., clothing or upholstery, can be cleaned using appropriate routine methods, e.g., washing or dry cleaning clothing, and need not be discarded unless cleaning fails to restore an acceptable appearance. " -------------------------------------------------------- The first two statements are simply BS. As far as his third statement is concerned, while there's no doubt it's also total BS, I feel the need to make a special comment about it: I wish it were so easy Dr. Fungus! In reality clothes and other porous materials are sometimes IMPOSSIBLE to decontaminate from mycotoxins. Quote
Guest guest Posted September 21, 2006 Report Posted September 21, 2006 Branislav, Thank you for pointing out this information. I should have limited my positive comments to the characteristics of the various genera and species of mold. In defense of the Dr Fungus site, however, at least they reference every statement they make and they have a lengthy legal disclaimer you must agree to before you continue in their site. So instead of their own opinion, they are only going to say what authoritative sources have said as a way of defending themselves (their legal version of an immune system!). So the bias will be determined by a combination of available sources and the the ones they select. I'd rather have this openness than the opaqueness we find on most sites. Again, this group includes some sharp people who check and double- check the information. This is required because you must become your own expert. Which means you must do it in a way that you find and understand the available information, how you select what you will use, with a method that develops trust in your decisions over time. Carl Grimes Healthy Habitats LLC ----- > > Dr Fungus, Aerotec, AMSL and EMLab sites have > > excellent information. > > I would be very cautious in recommending Dr. Fungus as a point of > reference regarding toxic mold. He's very biased. Take a look at some > of their statements on the follwing page: > > http://www.doctorfungus.org/mycoses/environ/mould_disease.htm#toxins > > ----------------------------------------- > Thus, while it is clear that S. chartarum produces toxins [2293] and > that at least some strains can cause disease in animals [1035, 1628], > it is simply not at all clear whether it is able to produce these > symptoms in humans [1518]. > > > What lessons can be learned here? > > First, it is indeed clear that mycotoxins are real and that they can > produce dramatic symptoms. However, clear linkage of a toxin to a > disease is difficult. > > > How do I get rid of mycotoxins? > > We do not know of any specific recommendations in this regard, nor do > special steps appear necessary. Mycotoxins are simply chemical > compounds released by fungi onto the surface where the fungus is > growing. Cleaning procedures that are able to remove other surface > contaminants would seem very likely to remove any relevant amounts of > mycotoxins. As we state elsewhere, you are done with mould cleanup > when (a) there is no visible mould, ( there are no mould odors, and > © you have fixed the moisture/water problem so that it will not > recur [93]. We are very often asked about cleaning of colonized porous > materials such as clothing. As stated so nicely in the ACOEM's > position statement [80], " Colonized porous materials, e.g., clothing > or upholstery, can be cleaned using appropriate routine methods, e.g., > washing or dry cleaning clothing, and need not be discarded unless > cleaning fails to restore an acceptable appearance. " > -------------------------------------------------------- > > The first two statements are simply BS. As far as his third statement > is concerned, while there's no doubt it's also total BS, I feel the > need to make a special comment about it: > > I wish it were so easy Dr. Fungus! In reality clothes and other porous > materials are sometimes IMPOSSIBLE to decontaminate from mycotoxins. > > > > > > > > > > > > FAIR USE NOTICE: > > > Quote
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.