Study of lead levels in rice under scrutiny
Tests indicating that rice imported to the US contained high levels of lead have been cast into doubt.
At a conference in April, researchers reported that commercially available rice contained many times more lead than US food authorities deemed safe.
The findings sparked international concern over imported rice.
But preliminary independent checks on the findings have failed to replicate the results, and tests suggest the equipment used may have been to blame.
http://www.bbc.co.uk/news/science-environment-22448696
From 4 weeks ago :
US rice imports 'contain harmful levels of lead'
Analysis of commercially available rice imported into the US has revealed it contains levels of lead far higher than regulations suggest are safe.
Some samples exceeded the "provisional total tolerable intake" (PTTI) set by the US Food and Drug Administration (FDA) by a factor of 120.
However, the results are preliminary and will be extensively reviewed prior to publication in a journal.
The FDA told the BBC it would review the research.
http://www.bbc.co.uk/news/science-environment-22099990
