Workers in manufacturing producing nanotech foods and other goods may be exposed to a health risk, according to a scientific article.

The article, published by the British Occupational Hygiene Society, serves as a warning to food manufacturers, who may be exposed to potential liability if scientific evidence subsequently indicates they subjected their workers to a health risk.

"The presence of engineered nanomaterials in the workplace today poses as an immediate challenge to how occupational safety and health is managed," said Andrew Maynard, author of the article and chief science advisor to the Project on Emerging Nanotechnologies. "So far, we have a number of red flags that indicate some engineered nanomaterials might present a new or unusual health hazard."