Manure air and water quality
When discussing odor problems related to animal agriculture, the following questions often arise:
- How far does odor travel?
- Are animal numbers or animal species accurate predictors of nuisance odors?
- How much odor control is needed to solve an odor problem from an existing facility?
Answers to these questions are as varied as the people having the discussion. Until now, scientific methods to predict odor impacts did not exist. This tool, developed at the University of Minnesota, helps answer some of these questions.
The tool is the result of four years of extensive data collection and field testing. It is a simple tool designed to help answer the most basic questions about odor impacts from livestock and poultry facilities.
OFFSET is designed to estimate average odor impacts from a variety of animal facilities and manure storages. These estimations are useful for rural land use planners, farmers or citizens concerned about the odor impact of existing, expanding or new animal production sites.
OFFSET is based on odor measurements from Minnesota farms and Minnesota climatic conditions. As such, the use of OFFSET for estimating odor impacts in other geographic areas should be done with caution and through consultation with the authors of the tool.