A person can experience irritation to skin, eyes and mucous membranes by being exposed to methyl methacrylate, which is also "associated with certain adverse respiratory and neurological effects," EPA said.

A person's nervous system can be affected by exposure to styrene, which the International Agency for Research on Cancer, part of the World Health Organization, has found is a possible carcinogen, the EPA said. Both styrene and methyl methacrylate are potential asthma irritants.

"To better protect public health and the environment, it is critical that all companies make every effort to comply with environmental laws and regulations," Robert Varney, EPA regional adminstrator, said in the statement. "Hazardous air pollutants can pose a serious risk to workers and to the public.