An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Draft Air Emissions Estimating Methodologies for Animal Feeding Operations

EPA 's quality assurance project plan (QAPP) for the development of emissions estimating methodologies is described in the document below.

EPA has analyzed the National Air Emissions Monitoring Study data for two broiler chicken sites and nine swine and dairy lagoons/basins. The draft emissions estimating methodologies are provided in the documents below. The documents also present descriptions of the sites monitored; the data submitted to EPA and a detailed discussion of the statistical analyses used to develop the draft emissions estimating methodologies.