The California Department of Public Health warned consumers Thursday to discard certain Chinese-made lunch totes because they could contain high levels of lead.

California officials issued a warning Thursday on 56,000 Chinese-made lunch totes that may contain high levels of lead as well as on another 250,000 similar canvas sacks, manufactured by the same company.

All the items were distributed at health fairs and other events and promoted healthy eating. The lunch bags with dangerous levels of lead are green and feature the logo, in English or Spanish, “Eat fruits & vegetables and be active.”

All 300,000 totes were manufactured by TA Creations, which has factories in China.

Dr. Mark Horton, director of the department, says in the advisory posted on the CDPH’s website:

“CDPH will no longer use lunch boxes until such time as we are assured that every lunch box is safe. In addition to lunch boxes, we are assessing all of our health promotion items to ensure that they are safe.

“We are urging Californians to not use these lunch boxes and keep them away from infants and young children.”

CDPH urges consumers that own such lunch boxes to return them to the place where they got them or take them to their local household hazardous waste (HHW) collection facility for disposal.

The warning comes after testing showed that three totes contained high levels of lead. The department is currently conducting further testing.

The lunch boxes were handed out as nutrition education items for the Network for a Healthy California Program and the Special Supplemental Program for Women, Infants and Children (WIC), officials said.

As of yet, there are no known cases of lead poisoning in relation with these items. The lunch boxes were given mainly to low-income parents.

Children are particularly vulnerable to lead poisoning and exposure to lead can cause learning disabilities. Among the symptoms of lead poisoning are headaches, irritability, nausea and insomnia. Some individuals may even go into comas.