Rural Odor Study Continues with Spring Manure Application

March 25, 2005

DES MOINES-State inspectors are continuing to test odor levels and responding to odor complaints as part of a comprehensive study to determine air quality near large animal feeding operations.

“With spring manure spreading underway, we are reminding Iowans of this effort,” said DNR spokesman Brian Button. “Citizens can call 1-800-961-ODOR when unusually strong odors are present through the year.” Radio ads will also promote the study.

He said an inspector is sent to take readings as soon as possible. “This isn’t an enforcement effort. No action is taken against the source,” he said. The study is used to collect data to help determine if any future odor-reducing measures are necessary.

The effort stems from state legislation in 2002 that called for comprehensive reviews of air quality near animal feeding operations. Hydrogen sulfide and ammonia gas monitoring also began in 2002.

State inspectors use hand-held devices that dilute odorous air with seven to 15 parts filtered air, then record the results.

To report excessive agricultural related odors, call 1-800-961-ODOR.

For more information contact the DNR’s Brian Button at 515-281-7832.