Iowa Code § 455B.141: Legal action.

If action to prevent, control, or abate air pollution is not taken in accordance with the rules established, or orders or permits issued by the department, or if the director has evidence that an emergency exists by reason of air pollution which requires immediate action to protect the public health or property, the attorney general, at the request of the director, shall commence legal action, in the name of the state, for an injunction to prevent any further or continued violation of such rule or order.