Ammonia Deposition in Rocky Mountain National Park: What Is the Role of Animal Agriculture?

Air quality concerns related to animal agriculture include ammonia. One area that this has become apparent is Rocky Mountain National Park in Colorado. The park appears majestic and pristine. But is everything really in harmony?

Ammonia Deposition Alpine Ecosystems


Ammonia, which is a basic atmospheric gas emitted from livestock and other farms, combines with nitrogen oxides from cars and other combustion sources to create nitrogen particles which deposit in the park.…

Diet Modification to Reduce Odors, Gas Emissions and Nutrient Excretions from Swine Operations

Can Changing Pig Diets Reduce Odor Emissions?

The pork industry has undergone a rapid change in the past two decades, with a decrease in farm numbers and an increase in farm size. These changes magnify the stress of the compatibility of pork production with neighbors in rural America. Concerns of the potential impact of the swine operation on water and air quality and health are also raised due to numerous compounds often produced from anaerobic degradation of animal manures, such as, sulfurous compounds, volatile fatty acids (VFAs), and ammonia (NH3).…

Air Emission and Energy Usage Impacts of No Pit Fans in a Wean to Finish Deep Pit Pig Facility

What Is Being Measured?

The objectives of this research project are to monitor the indoor air quality of a deep-pit; wean-to-finish pig building over one pig-growth cycle (six months) by semi-continuously measuring concentrations of ammonia (NH3), hydrogen sulfide (H2S), carbon dioxide (CO2), methane (CH4), and volatile organic compounds (VOCs) and intermittently measuring particulate matter (PM10) and odor.…

Simultaneous Treatment of Odor, Volatile Organic Compounds, Hydrogen Sulfide, Ammonia, and Pathogens With Ultraviolet Light

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Is It Feasible to Treat or Reduce Several Air Emissions from Pig Barns at Once?

The simultaneous treatment of odors, gases, airborne pathogens using novel ultraviolet (UV) treatment project addresses a critical need of the control of odor and pathogens generated in commercial swine production.…

Controlling Ammonia and Air Emissions in Poultry Facilities

Interested in knowing more about air emissions from poultry operations and why there is growing interest in reducing ammonia emission? What are current ammonia mitigation options at poultry facilities? What promising options are being developed? Join us for a webinar aimed to address these questions as we explore ammonia mitigation options in broiler chicken and laying hen housing systems.…