31.   Oxo chemicals are mainly found in chemical intermediates, solvents and softening agents.

32.   Since then scientists in Britain, Germany, Norway, US and Switzerland have also found the chemical in foods.

33.   Several toxic chemicals were found in the water, but no source was immediately identified.

34.   Since then scientists in Britain, Germany, Norway and Switzerland have also found the chemical in foods.

35.   The chemical is found in cotton trash, which farmers had been forced to use as a substitute for cattle feed due to a shortage caused by drought.

36.   The chemical found in the products, chloramphenicol, was an antibiotic used in some medical products which has been linked to serious anemia and cancers.