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Allergy to Bt cotton?
In nz.general cp1c wrote:
The spray is Bt. with all due respect the spray is not BT. the active ingredient is BTk. Yes, Bt kurtaski. 98% of the spray is Ingredients identified in the Foray 48B spray are methyl paraben (methyl 4-hydroxybenzoate), benzoic acid/sodium benzoate, propylene glycol, potassium sorbate, sorbitol, hydrochloric acid, and polyacrylic acid. The other ingredients - Btk, fermentation solids and water - are already publicly known. The water would be the main component. I agree the other components could be a problem. For me hydrochloric acid is a bit of a constrictor. Polyacrylic acid looks a problem. As I have posted on sci.med.dentistry rabbits exposed to acrylic acid vapour get nasal inflammation. Maybe there is a connection to the bad dermatitis on hands of dental technicians who frequently work with methacrylates. Then di-methacrylate, a basis in much modern white dental filling material, is a very potent sensitizer. (di being `two' - on the way to `poly'.) all harmless by themselves Not for all people. but some people react badly to this combination in a very fine aerosol when inhaled And animals. Some people are advised to use a mask when dealing with soil and Btk is a soil bacteria. In reply to another poster yes the cotton could have had herbcide applied to dry it out prior to harvest. Roundup has been used to dry out some crops prior to harvest. Then the question is what do the farmers use as a `dessicant' if the crop is genetically engineered to be Roundup resistant. I have posted an article with `byssinosis' in the title and it may not have appeared on all servers on the groups in the header, but I see it has got on nz.general on my server. A ref I gave asks whether a GM herbicde tolerant crop turns the herbicde into a toxic degradation product which may increase byssinosis lung disease of cotton workers. Then the question is whether washing would wash that out. But it could not wash out the Bt or herbicide degradation protein which I presume are a part of the fibre structure and which would touch against lung tissue. It might be intersting to do immune reaction tests on workers. They have shown positive on Auckland people exposed to the spray. |
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