Guest guest Posted December 2, 2010 Report Share Posted December 2, 2010 Dear Lyme, I'm still unclear why you are so determined to spend your money on such a test procedure looking for som many species. Please explain your purpose. Your insistence without sufficient knowledge and understanding has me intrigued, to say the least. I'm convinced you won't receive the value you think will arrive with the results. The variability in analysis results is huge. Even if you found somewhere to test for what you think you want, it's unlikely the results will be accurate and/or precise with regard to the location and time of the original single sample. I can go on about methodolody, error, variance, validity and reliability, but I think you need to look those up and study more about sampling. I think the descriptions you've received from Carl and Jack would have convinced you otherwise. Did you talk to the lab tech experts? I'd talk to the in-house experts at places like Galson, EMSL, QLabUSA, MLAB/P & K. They will explain a lot in a short discussion. Until then, keep reading and save your money. I strongly urge you to read the ACGIH BioAerosols book. Maybe you will gleen some of the complexity of sampling methodology, errors, and interpretation difficulties. > > air and/or dust. I'm having a hard time finding any. mycometrics told me they test for 50ish. Should be accredited by AIHA and EPA (ERMI). thanks > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 2, 2010 Report Share Posted December 2, 2010 Hey , My purpose is simple: Given a budget of say 1000$, try to get as much information as possible about possible mycotoxins in my apartment and in my former office. the goal is to determine roughly what I think is the chance that molds in my former office and/or my current appartment contribute(d) to my current symptoms. Most of my symptoms could be attributed to lyme, which I have, but a few are less typical and in any case I want to get rid of as many physiological stressors as possible. I understand that this will be far from perfect, but better than nothing. So while trying to maximize the amount/quality of information I'm likely to get from the testing, I have to decide how many species I want to test, and how. If the price is not that much more for a 160 species then it's worth it, if not then maybe 30ish will be all i want to afford. But I'm under the impression that several not-so-rare molds like Fusarium species are not included in the EMRI. Carl stated, if I understood what he said, that mycotoxins can be present in the air of a room without turning up on the dust analysis. I don't know if this is frequent.. if it is then I would have to test both an air sample and a dust sample. Of course all these tests have many limitations but im just trying to spend my grand as wisely as possible. Does it make sense? Maybe I could call the lab tech experts you mentionned. I'm also interested in other air contaminants like VOC, formaldehyde, etc For example outgassing two new mattress in a row definitly made me worse - 3 years ago. But I suppose that would be for another round of testing, if the current round does not provide me the answers I'm looking for. All this health business is like poker - its about playing the probabilities to maximize a goal. If it works you get your health back - if it doesnt you stay sick. > > Dear Lyme, > > I'm still unclear why you are so determined to spend your money on such a test procedure looking for som many species. Please explain your purpose. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 Lyme, I'll let answer for himself but in the meantime it sounds like you want mycotoxin information you need mycotoxin testing. If so, neither PCR nor any other speciation method will produce that information. It will only identify species and not all species produce mycotoxins all the time. The particular environment the mold and bacteria and other filth is in is the major influence on whether or not mycotoxins are produced. (or endotoxins from the bacteria). Getting lots of information without zeroing in precisely on what you need and how to get it is not playing the probabilities of poker or any other set of rules. It is playing several games helter-skelter all at once each with their own set of probabilities. It is like playing the stock market by gathering each day all the information in the newspaper (remember them?) instead of the information relevant to your trading plan. You need to first establish the environmental context and that will guide the sampling plan (if any). Carl Grimes Healthy Habitats LLC ----- Hey , My purpose is simple: Given a budget of say 1000$, try to get as much information as possible about possible mycotoxins in my apartment and in my former office. the goal is to determine roughly what I think is the chance that molds in my former office and/or my current appartment contribute(d) to my current symptoms. Most of my symptoms could be attributed to lyme, which I have, but a few are less typical and in any case I want to get rid of as many physiological stressors as possible. I understand that this will be far from perfect, but better than nothing. So while trying to maximize the amount/quality of information I'm likely to get from the testing, I have to decide how many species I want to test, and how. If the price is not that much more for a 160 species then it's worth it, if not then maybe 30ish will be all i want to afford. But I'm under the impression that several not-so-rare molds like Fusarium species are not included in the EMRI. Carl stated, if I understood what he said, that mycotoxins can be present in the air of a room without turning up on the dust analysis. I don't know if this is frequent.. if it is then I would have to test both an air sample and a dust sample. Of course all these tests have many limitations but im just trying to spend my grand as wisely as possible. Does it make sense? Maybe I could call the lab tech experts you mentionned. I'm also interested in other air contaminants like VOC, formaldehyde, etc For example outgassing two new mattress in a row definitly made me worse - 3 years ago. But I suppose that would be for another round of testing, if the current round does not provide me the answers I'm looking for. All this health business is like poker - its about playing the probabilities to maximize a goal. If it works you get your health back - if it doesnt you stay sick. > > Dear Lyme, > > I'm still unclear why you are so determined to spend your money on such a test procedure looking for som many species. Please explain your purpose. ---------- The following section of this message contains a file attachment prepared for transmission using the Internet MIME message format. If you are using Pegasus Mail, or any other MIME-compliant system, you should be able to save it or view it from within your mailer. If you cannot, please ask your system administrator for assistance. ---- File information ----------- File: DEFAULT.BMP Date: 15 Jun 2009, 23:10 Size: 358 bytes. Type: Unknown Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 Carl, Are you saying that there are labs which can reliably test an air or a dust sample for a broad spectrum of mycotoxins (as opposed to mold species)? That is the kind of information I'm after in order to play my best poker game.. Can you please tell me which one, given the fact that I live very far from you anyway? btw I'm planning to do the urine mycotoxins test by realtime labs Best T. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 to my knowledge there are no air tests that well detect mycotoxins. > > > Carl, > > Are you saying that there are labs which can reliably test an air or a dust sample for a broad spectrum of mycotoxins (as opposed to mold species)? That is the kind of information I'm after in order to play my best poker game.. Can you please tell me which one, given the fact that I live very far from you anyway? > > btw I'm planning to do the urine mycotoxins test by realtime labs > > Best > T. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 Before you do any mycotoxin testing you must consider what you are going to sample and test. If you do air sample testing you most likely will get negative results. The reason for this is you will be trapping airborne spore and hyphae at concentrations that if mycotoxins are present will be below detection levels. Airborne mycotoxins must be taken from the fraction of particles less than the size of spores and hyphae. The particles must be collected and analyzed according to Brasel et al. You can also consider using bulk samples of fungal growth and/or dust samples. As Carl said, you need to develop a protocol on what you are attempting to do. If you are not careful you will be wasting your time and money See: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1287651/pdf/0530-05.pdf and http://www.ncbi.nlm.nih.gov/pmc/articles/PMC544211/pdf/0645-04.pdf [] Re: Anyone can post 3-4 labs that test for 160 species of molds? Carl, Are you saying that there are labs which can reliably test an air or a dust sample for a broad spectrum of mycotoxins (as opposed to mold species)? That is the kind of information I'm after in order to play my best poker game.. Can you please tell me which one, given the fact that I live very far from you anyway? btw I'm planning to do the urine mycotoxins test by realtime labs Best T. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 T. Yes, air can be sampled for mycotoxins. But should only be done according to the Brasel paper (or equivalent) Dr Thrasher linked us to. An update for increased lab sensitivity is the Bloom paper (Stockholm) from last year. What this means is the routine 5-10 minute sample time for spores is grossly insufficient. You can " maybe " detect airborne mycotoxins with sample times of many hours to days. You have to collect a lot of material! This is one reason why dust and bulk samples are preferred. As for reliability, as mentioned, there are multiple ways in which all testing may not be reliable. The lab can only detect what is in a sample assuming it is properly collected, handled, shipped, and identified. Then the data must be interpreted - NOT by the lab but by the person collecting the sample because they are the only ones who know if it was collected, handled, shipped, and identified correctly. But even before that, as Dr Thrasher indicated, you have to determine relevance. That the sample location is representative of the whole situation, part of the building, or a small area within a room for example. Presence is not the same as exposure. For that you need to determine length of time a person is in the presence of the mycotoxins (or spores or bacteria or VOCs or pesticides) and if the level detected during the sampling is representative of the level during the time of exposure. Was the sample taken during normal people activity for the room or house or after several hours of the " dust " settling. This is not simple. Then the type of sample needs to be determined according to the question being asked. etc etc There is a lot of information, detail, and expertise that goes into a meaningful and reliable set of samples. (Notice I said " set of samples, " and not " a sample. " ) Carl Grimes Healthy Habibitats LLC ----- Carl, Are you saying that there are labs which can reliably test an air or a dust sample for a broad spectrum of mycotoxins (as opposed to mold species)? That is the kind of information I'm after in order to play my best poker game.. Can you please tell me which one, given the fact that I live very far from you anyway? btw I'm planning to do the urine mycotoxins test by realtime labs Best T. ---------- The following section of this message contains a file attachment prepared for transmission using the Internet MIME message format. If you are using Pegasus Mail, or any other MIME-compliant system, you should be able to save it or view it from within your mailer. If you cannot, please ask your system administrator for assistance. ---- File information ----------- File: DEFAULT.BMP Date: 15 Jun 2009, 23:10 Size: 358 bytes. Type: Unknown Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 You are wrong. You must read my post on air sampling for mycotoxins. [] Re: Anyone can post 3-4 labs that test for 160 species of molds? to my knowledge there are no air tests that well detect mycotoxins. > > > Carl, > > Are you saying that there are labs which can reliably test an air or a dust sample for a broad spectrum of mycotoxins (as opposed to mold species)? That is the kind of information I'm after in order to play my best poker game.. Can you please tell me which one, given the fact that I live very far from you anyway? > > btw I'm planning to do the urine mycotoxins test by realtime labs > > Best > T. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 Correct: A classical example is a home I did in Hawaii. The party had the money. Mycotoxins varied according to the sample. The various samples included: bedroom carpet dust, living room carpet dust, carpet backing, contaminated wood, contaminated bathroom towel, contaminated dry wall, etc. The party was adamant regarding detection of various samples. All were positive but the concentrations varied and type of mycotoxins varied according the sample material. Bloom also demonstrated this in her paper on mycotoxins in water damaged buildings. Re: [] Re: Anyone can post 3-4 labs that test for 160 species of molds? Yes, air can be sampled for mycotoxins. But should only be done according to the Brasel paper (or equivalent) Dr Thrasher linked us to. An update for increased lab sensitivity is the Bloom paper (Stockholm) from last year. What this means is the routine 5-10 minute sample time for spores is grossly insufficient. You can " maybe " detect airborne mycotoxins with sample times of many hours to days. You have to collect a lot of material! This is one reason why dust and bulk samples are preferred. As for reliability, as mentioned, there are multiple ways in which all testing may not be reliable. The lab can only detect what is in a sample assuming it is properly collected, handled, shipped, and identified. Then the data must be interpreted - NOT by the lab but by the person collecting the sample because they are the only ones who know if it was collected, handled, shipped, and identified correctly. But even before that, as Dr Thrasher indicated, you have to determine relevance. That the sample location is representative of the whole situation, part of the building, or a small area within a room for example. Presence is not the same as exposure. For that you need to determine length of time a person is in the presence of the mycotoxins (or spores or bacteria or VOCs or pesticides) and if the level detected during the sampling is representative of the level during the time of exposure. Was the sample taken during normal people activity for the room or house or after several hours of the " dust " settling. This is not simple. Then the type of sample needs to be determined according to the question being asked. etc etc There is a lot of information, detail, and expertise that goes into a meaningful and reliable set of samples. (Notice I said " set of samples, " and not " a sample. " ) Carl Grimes Healthy Habibitats LLC Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 isnt it enough to know the mold types and that they do produce mycotoxins even in a indoor environment? is it really that important to find them in the indoor environment? > Yes, air can be sampled for mycotoxins. But should only be done > according to the Brasel paper (or equivalent) Dr Thrasher linked > us to. An update for increased lab sensitivity is the Bloom paper > (Stockholm) from last year. > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 Oh, ok ,remember reading on this before. --- In , " Jack Thrasher, Ph.D. " <toxicologist1@...> wrote: > > You are wrong. You must read my post on air sampling for mycotoxins. > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 The definitive answer to your legitimate question is " It depends. " Your assumptions have been proven accurate for your purposes as you understand them because you have put in a lot of effort, study, self challenge, trial-and-error. I will even back off from your minimal protocol by saying we usually don't even need to know " mold types. " Moisture and water damage should be recognized and controlled within a couple of days at the most. No mold GROWTH. If not attended to (or known) expeditiously then the ubiquitous spores (seeds) will germinate and GROW into colonies. They need food and will eat whatever is available on the surface they are on. The surface itself if digestible (or the biofilm on the surface) is affected (digested) and the complexity accelerates. The longer this is allowed to occur and persist the greater the risk, exposure, complexity, addition of other organisms growing, and possible harm to materials and people. Once past a " certain " threshold for your particular immune system (the $64B question), that is when we can be in serious trouble requiring a long to extremely long recovery even after the mold growth and damaged materials are removed. Recovery from what? That depends on even more variables and complexities. Even so, to remediate (stop the moisture and clean or remove the surfaces the mold is growing on) we still don't need to know mold types. But if there is a relevant medical, contractual, or legal question which requires the mold type or quantity then sampling is necessary. But it must be the type of sample and lab analysis which will answer the question. Because there can be many different questions we need many different sampling and analysis methods. Sample numbers by themselves cannot meaningfully answer much beyond " is this mold or not mold? " And a rough estimate of quantity. Some comparisons can be made between samples but you must carefully control so you are actually comparing same-to-same rather than apples to rocks. Comparing inside to outside is the most common mistake and myth which persists even by those who should know better. For proper comparisons you need the history, building type and use, environmental conditions and much more. To get credible information you need different sample types of the same location as a cross check and a sufficient number of samples to eliminate as many of the unavoidable errors as possible. Consider Dr Thrashers report on how few of his Hawaii samples were specifically consistent. To now answer your question based on what I just wrote I'd say, " It depends. " It depends on the situation and the question. And the questions which almost all sampling CANNOT easily answer by itself is what we all desperately want to know: What is making me sick? Is this house safe? Why me? Carl Grimes Healthy Habitats LLC (fm my Blackberry) [] Re: Anyone can post 3-4 labs that test for 160 species of molds? isnt it enough to know the mold types and that they do produce mycotoxins even in a indoor environment? is it really that important to find them in the indoor environment? > Yes, air can be sampled for mycotoxins. But should only be done > according to the Brasel paper (or equivalent) Dr Thrasher linked > us to. An update for increased lab sensitivity is the Bloom paper > (Stockholm) from last year. > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 3, 2010 Report Share Posted December 3, 2010 It all depends on what one wants to do with the information. If you are in litigation, for example, the mycotoxins need to be tested and shown to be present in the environment and in the individual. [] Re: Anyone can post 3-4 labs that test for 160 species of molds? isnt it enough to know the mold types and that they do produce mycotoxins even in a indoor environment? is it really that important to find them in the indoor environment? > Yes, air can be sampled for mycotoxins. But should only be done > according to the Brasel paper (or equivalent) Dr Thrasher linked > us to. An update for increased lab sensitivity is the Bloom paper > (Stockholm) from last year. > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 4, 2010 Report Share Posted December 4, 2010 say someone does have lyme than are exposed in a WDB which they know made them much sicker and have a possable lawsuit, does that make their case harder to prove because they had lyme? if they have medical diagnoses of say mycotoxins in urine, and other medical documentation that WDB illness and lyme might share, but their documentation of the WDB contamination is limited to some mold types found and documentation and pictures proveing there was a water sorce and mold growth. I guess what I'm asking is, is there now enough knowledge about WDB exposures to support the probablity that if someone, regardless of a prior illness, say's this building made me sick and they do have some documentation as far as medical and even limited documentation on the WDB at least proveing there was a moisture sorce that allowed mold growth, doesn't that support the probability, pretty well that the WDB did harm them. do they have to go that extra mile to get mycotoxins documented from that WDB that were found in their urine to prove their case? > > The definitive answer to your legitimate question is " It depends. " > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 4, 2010 Report Share Posted December 4, 2010 Jeannine, Your key phrase is " support the probability. " I agree with your choice of words, because there are few absolutes in life. But lets look at some different contexts to see why there can be severe disputes and confusion. How much probability do you need to make a decision to take care of yourself? Who will be blamed if you are wrong? How much probability do you need to make a decision about taking care of someone else? Who will be blamed if you are wrong? How much probability do you need when relying on a professional remediator or doctor? Who will you blame if they are wrong? If you are being accused of harming someone and facing the potential for bankruptcy and possible prison, how much probability of guilt will you demand? Who will be blamed and who will wrongly suffer if they are wrong about you? This is not meant to justify abuse of courts or the distortion of science that Sharon Kramer has been exposing. Whenever there is a lack of absolute certainty the door is always open to create (or manufacture) doubt and then exploit it. How do we defend against the skeptics and especially those who abuse and exploit the inherent uncertainty about exposure to WDB and other sources? It can be done but it requires more than a couple of " screening " type tests and a strong personal conviction. It takes the type of comprehensive testing and evaluation like Dr Thrasher and others discuss, and argued using the support of the current science in a way which convincingly rebutts the counter-arguments. If the skepticism or counter argument is less strong then less evidence of lower quality will work. But too little or too inaccurate information can lead to wrong diagnosis and response and a continuation of unnecessary harm. This is what frequently occurs in this group. Then who is to blame? If this were easy it would have been resolved long ago. Unfortunately we have yet to win the battle of the more resistant Naysayers, whether they be family or paid defensors. Carl Grimes Healthy Habitats LLC (fm my Blackberry) [] Re: Anyone can post 3-4 labs that test for 160 species of molds? say someone does have lyme than are exposed in a WDB which they know made them much sicker and have a possable lawsuit, does that make their case harder to prove because they had lyme? if they have medical diagnoses of say mycotoxins in urine, and other medical documentation that WDB illness and lyme might share, but their documentation of the WDB contamination is limited to some mold types found and documentation and pictures proveing there was a water sorce and mold growth. I guess what I'm asking is, is there now enough knowledge about WDB exposures to support the probablity that if someone, regardless of a prior illness, say's this building made me sick and they do have some documentation as far as medical and even limited documentation on the WDB at least proveing there was a moisture sorce that allowed mold growth, doesn't that support the probability, pretty well that the WDB did harm them. do they have to go that extra mile to get mycotoxins documented from that WDB that were found in their urine to prove their case? > > The definitive answer to your legitimate question is " It depends. " > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted December 9, 2010 Report Share Posted December 9, 2010 Lyme, Wow. Is all I can say! Well, not really. I will say that you clearly want to throw away $1000. So I recommend you throw it my way, I'll send you my address, what have you got to lose? Nothing less than what a PCR will get you. I'll even throw in a fancy sounding report on my letterhead with my signature on the bottom! Very valuable indeed. Remember, the 40 species in ERMI, or even if you get a scan for 160 species, will only report what you are lucky enough to grab at that time and place (spatial and temporal variability, not to mention sampling bias, etc). It will never identify the other tens of thousands of other possible species. Yes, I said Thousands, maybe 250,000 or more! E.g., Some mycologists suggest there are up to 700 species in the generic Asp/Pen group reported by spore trap analyses (casettes)! Some of which are not even Asp or Pen genus! How many Asp are on the ERMI or other PCR group? Now how's that for unreliable reporting? Then you still ask about mycotoxins and your potential exposure. The PCR certainly is innapropriate for that. So why bother doing the PCR if you really want to know about mycotoxins? Ask yourself (all of you ask this on any project) where's the VALUE in getting only partial charactirization of the environment? It's like describing the elephant with the 4 blind men, each one gets a little part to touch and reports something completely different than the others - trunk/snake; leg/tree; tail/broom; tusk/spear. Only when taken as a group can the elephant be described. And even then, we'll never know complety, it'll only be a rough sketch with a lot of guess work for the blanks. As we often say when we critique a methodology, your hypothesis is incomplete or wrong; or, your sampling design is wrong. Either way, your data will not be VALID. It may be precise and accurate, but it will lack value. Validity describes the relationship between the question and the method. Not having validity means the answer to the question is useless. Period. No further discussion needed. Start your research over again. Save your money and ASSUME that YES there are some toxins present from the mold contamination (past and/or present). Spend that money on cleaning and replacing items likely to be contaminated and not easily cleaned. Everyone, on any and all projects, needs to ask the following: Do the predicted results of sampling increase the power of my future decision-making? Create a logic chart for yourself before you sample or let some IEP sample: If you get result " 1 " , what will you do? If you get result " 2 " , what will you do and will it be different from result/action " 1 " ? Typically, with mold (and all the other bio-gunk from WDB)the response is the same regardless of species or type of bio-gunk. So why bother trying to identify species? (Asking for 'species' is very common in our industry: insurance reps, restorers, owners, all ask: what species? But they don't know why, except someone told them that they NEED to know if the " deadly toxic black mold " is there! If not, they can breathe a sigh of relief. If it's there, run run run!) The methods to treat/clean species of mold, bacteria, insects, allergens, are the same. HEPA/WASH/HEPA. Avoid adding chemicals, don't use any gimmicks, and be detail oriented, very complete. Use detergents not " biocides " when you clean. Test them on yourself to make sure you aren't sensitive. Rinse well! Use a proper vacuum. Prevent cross contamination, protect workers, protect occupants. Perform ongoing project quality control and oversite; assure the job is completed as expected - aka, PRV, post remediation verification. > > Lyme, > > I'll let answer for himself but in the meantime it sounds like > you want mycotoxin information you need mycotoxin testing. > > If so, neither PCR nor any other speciation method will produce > that information. It will only identify species and not all species > produce mycotoxins all the time. The particular environment the > mold and bacteria and other filth is in is the major influence on > whether or not mycotoxins are produced. (or endotoxins from the > bacteria). > > Getting lots of information without zeroing in precisely on what > you need and how to get it is not playing the probabilities of poker > or any other set of rules. It is playing several games helter-skelter > all at once each with their own set of probabilities. It is like playing > the stock market by gathering each day all the information in the > newspaper (remember them?) instead of the information relevant > to your trading plan. > > You need to first establish the environmental context and that will > guide the sampling plan (if any). > > Carl Grimes > Healthy Habitats LLC > Quote Link to comment Share on other sites More sharing options...
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.