Tag: animal air quality

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Characterizing Ammonia Emissions from Swine Farms in Eastern North Carolina – Part II. Potential Environmentally Superior Technologies for Waste Treatment

Reprinted, with permission, from the proceedings of: Mitigating Air Emissions From Animal Feeding Operations Conference.

This Technology is Applicable To:

Species: Swine
Use Area: Manure Storage
Technology Category: Other Treatments
Air Mitigated Pollutants: Ammonia, Odors, Pathogens

System Summary

The need for developing environmentally superior and sustainable solutions for the management of animal waste is vital for the future of animal farms in North Carolina, the U.S. and the world. In addressing that need, the North Carolina Attorney …

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Characterizing Ammonia Emissions from Swine Farms in Eastern North Carolina – Part I. Conventional Lagoon and Spray Technology for Waste Treatment

Reprinted, with permission, from the proceedings of: Mitigating Air Emissions From Animal Feeding Operations Conference.

This Technology is Applicable To:

Species: Swine
Use Area: Manure Storage
Technology Category: Anaerobic Lagoon, Management
Air Mitigated Pollutants: Ammonia

System Summary

The conventional lagoon and spray technology (LST), is the current system predominantly used in North Carolina to manage pig waste. It consists of anaerobic lagoons to store and biologically treat pig waste (~99.5% liquid). Effluent from the lagoons is sprayed on surrounding …

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Management of Dairy Operations to Prevent Excessive Ammonia Emissions

Reprinted, with permission, from the proceedings of: Mitigating Air Emissions From Animal Feeding Operations Conference.

This Technology is Applicable To:

Species: Dairy
Use Area: Animal Housing, Manure Storage
Technology Category: Management
Air Mitigated Pollutants: Ammonia

System Summary

Ammonia emissions data from open-lot and hybrid (combination of free-stalls and open-lots) dairies in the milder climate of southwest US indicated that summer emissions from these facilities were nearly 50% higher than winter emissions. Due to their large surface areas, lagoons …

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Air Emissions After Manure Land Application Including Subsurface Application of Poultry Litter and Solid Manure

When manure is land applied there are many different gases emitted, including greenhouse gases and those that contribute to odors. How much is emitted and how does that change with different application methods? This presentation was originally broadcast on September 18, 2009. More…

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Gaseous Emissions Following Land Application of Manures

Curtis Dell, USDA ARS (16 minutes)

Presentation Slides
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Monitoring Manure

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Carbon Footprint of Animal Agriculture Webcast

logo for animal agriculture climate change which includes a weather vane with cow and topMany people are concerned about greenhouse gases and climate change. The carbon footprint of animal agriculture is an issue being used by many to encourage people to eat less meat. What is the true footprint of US animal production? How does production efficiency impact the numbers? This presentation was originally broadcast on July 31, 2009. More…

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What Is a Carbon Footprint?

Jude Capper, Washington …

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Air Emissions From Cattle Feedyards and Dairies

How do researchers measure air emissions from open lots? What are they learning about ammonia, hydrogen sulfide, and particulate matter (dust) emissions? This presentation was originally broadcast on March 27, 2009.

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The embedded videos can be viewed full screen by clicking on the icon in the lower right corner.

Measuring Air Emissions From Open Lots

Brent Auvermann, Texas AgriLife Research (12 minutes)

Presentation Slides
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Feeding Strategies To Reduce Animal Air Emissions Webcast

What strategies are effective in reducing air emission from animals? Learn more about research into beef, dairy and swine. This presentation was originally broadcast on January 16, 2009. More…

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What software do you need to view the slides and the videos?
The embedded videos can be viewed full screen by clicking on the icon in the lower right corner.

Dietary Effects on Air Emissions: Beef Cattle

Andy Cole, USDA ARS (14 minutes)

Presentation Slides
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Odor Emissions and Chemical Analysis of Odorous Compounds from Animal Buildings


Why Study Odor Emissions from Animal Housing?

  • To determine odor emission characteristics by using common protocols and standardized olfactometry, from four mechanically-ventilated National Air Emissions Monitoring Study (NAEMS) sites, two dairy and two swine.
  • To develop a comprehensive chemical library that delineates the most significant odorants, and correlate this library with olfactometry results.
  • To disseminate information to stakeholders including producers, agencies, regulators, researchers, local government officials, consultants, and neighbors of animal operations.

Current Activities

Data is being collected from the …

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Federal, State, and Local Air Quality Regulations Related to Animal Agriculture

The air emissions from animal feeding operations have relatively few regulatory oversights. Below is a summary of programs that can apply to animal agriculture. Related page: Air Quality Regulations for Animal Agriculture (curriculum materials).

Federal Air Programs Related to Animal Agriculture

The following federal laws and their applicability to animal agriculture is discussed in a four page fact sheet “Air Quality Regulation and Animal Agriculture“. (PDF format). These federal laws are enforced by the U.S. Environmental Protection Agency …

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