Mo. proposes expanded odor regulations for large animal farms

JEFFERSON CITY, Mo. -- Missouri pollution regulators want to expand the state's oversight of agricultural odors to more farms.

The Missouri Air Conservation Commission is proposing that concentrated animal feeding operations with more than 3,000 pigs, chickens, turkeys, cattle and dairy cows face odor standards. The current rules only apply to livestock operations with more than 7,000 animals.

The commission also wants to require odor control plans as part of the construction permit process for large animal farms, wastewater treatment plants and other facilities that could generate foul smells.

The commission plans to publish a draft rule and seek additional public comment.