The company recalled four batches of its AD Calcium Hi-Protein Cereal for infants. Heinz said the recall was precautionary and that the high level of the toxic heavy metal was caused “accidentally” by a skimmed soybean powder supplier.
In China, metal contamination in food is frequently linked to soil and water pollution.
A soil survey in April showed that about a fifth of China’s farmland was contaminated by toxic heavy metals and chemicals, and that more than 12,740 sq miles were unfit for agricultural use, Reuters says.
In December 2013, University of Alberta researchers found teas from China contained more lead than others and hypothesize that tea plants absorb pollution, such as the lead-containing emissions from China’s coal-fired power plants. There isn’t enough evidence to say the lead does mostly comes from Chinese coal plants, however.