contaminated soil

hi ya i would like to put my wifes mind at rest, she has this fear of vegetables that will be grown on our new allottment , will not be safe to eat because the odd cat fox or whatever may of contaminated the soil  , she is a very fussy lady and works in a laboratrey whitch opens her eyes up to all sorts of things, i would like you guys to give your opinion , ............pete

sorry, the reason she said,this because i picked up a pile of weeds by hand (i had gloves on )and got stung or biten up my wrist and arms i have about 5 little wounds that have scabed up, i no i gottle nettle stings but what caused these bites who knows,they seem slighley infected .............pete

Pete - I react badly to nettles and some conifer juice that can cause scabs .  The main biting beasties here are midges but they wouldn't just go for your wrists when lifting weeds. Disturbed ants are a good suggestion - you'll have felt the nip cause they've got strong jaws.  Savlon cream is good to keep around, as is an antihistamine cream

and she thinks these biting insects in the weeds, or the weeds themselves if you are allergic to them.........may contaminate the soil and hence the veggies?

I'm even more confused now 

It's converted into usable fertiliser and sprayed on fields very close to me in summer.  Boy does it stink.

I thought the stinky stuff was pig slurry and human sewage slurry cant be spread on any fields any more.  It is (or was) dumped at sea, or incinerated and the ash landfilled.  I was told that general sewage generally has industrial chemicals in it from factories who legally pour it down the drains. 

if you can be bothered to read them..these are the regs for farmers
http://www.environment-agency.gov.uk/netregs/businesses/agriculture/61893.aspx

That's the way I read it, but the sludge was tested before application, and being dug  in.