Maverick8701,
The blood test presently being developed in the US needs to be tested within 10 weeks of exposure. It will then tell the exact time and date of exposure. It is not quite available, yet.
There are blood tests than can be done now which will show up organo phosphates etc but the most reliable check is to check the fat -
that is where the toxins are stored.
Blood can be checked and this shows the past damage.
Example:
http://www.aerotoxic.org/download/do...%2007-2009.pdf
None of this is done by the NHS; it is all private and costs around £450.
If you have odd medical symptoms and you want a blood / fat test, contact the experts for help.
DB
