Air quality has a direct influence on health, welfare and production performance of livestock as the high concentrations of noxious gases, dust and airborne microorganisms are likely to reduce production efficiency and the general welfare of farm animals. Long term exposure to particulates in livestock buildings might also affect the respiratory health of farm workers. Dust in animal buildings contains many biologically active substances such as bacteria, fungi, endotoxins and residues of antibiotics (as a result of veterinary treatments) that are suspected to be hazardous to human health. Furthermore, air pollutants emitted from livestock buildings can reduce air, water and soil quality and can potentially undermine the health of nearby residents. Airborne emissions include ammonia, methane, nitrous oxide, particulates like dust and microorganisms. In addition, other potentially harmful substances such as heavy metals, antibiotic residues and components of disinfectants might be also emitted from livestock building that are potentially damaging to ecosystems. In this book, key aspects of agricultural air quality, such as monitoring, managing and reducing airborne pollutants in and around livestock facilities are reviewed. Features: addressing the raising awareness of the importance of optimal health and welfare for lifestock species with contributions from international specialists and researchers providing up-to-date information for professionals involved in modern animal producti This book will be useful for farming professionals, academics, students, policy makers, business leaders, regulatory bodies and agricultural consultants.

Air quality has a direct influence on health, welfare and production performance of livestock as the high concentrations of noxious gases, dust and airborne microorganisms are likely to reduce production efficiency and the general welfare of farm animals. Long term exposure to particulates in livestock buildings might also affect the respiratory health of farm workers. Dust in animal buildings contains many biologically active substances such as bacteria, fungi, endotoxins and residues of antibiotics (as a result of veterinary treatments) that are suspected to be hazardous to human health. Furthermore, air pollutants emitted from livestock buildings can reduce air, water and soil quality and can potentially undermine the health of nearby residents. Airborne emissions include ammonia, methane, nitrous oxide, particulates like dust and microorganisms. In addition, other potentially harmful substances such as heavy metals, antibiotic residues and components of disinfectants might be also emitted from livestock building that are potentially damaging to ecosystems. In this book, key aspects of agricultural air quality, such as monitoring, managing and reducing airborne pollutants in and around livestock facilities are reviewed. Features: addressing the raising awareness of the importance of optimal health and welfare for lifestock species with contributions from international specialists and researchers providing up-to-date information for professionals involved in modern animal producti This book will be useful for farming professionals, academics, students, policy makers, business leaders, regulatory bodies and agricultural consultants.

Good housing environment that promotes high production efficiency, excellent health and optimal welfare for different livestock species is an essential aspect of sustainable animal production. This book is written for all those who are involved in managing the production efficiency, health and welfare conditions of housed livestock on commercial farms, including farm workers, animal scientists, veterinarians, agricultural engineers and students. The appropriate management of livestock buildings is an ever improving professional endeavour and this book is set out to review the current best practice management in relation to air quality management of livestock buildings that have to be managed correctly to generate environmental conditions that will enhance the production efficiency, health and welfare of livestock, the health of farm workers and people living near farming operations. Contributions to this book are from highly respected specialists from around the world. All key areas of air quality management are reviewed in this book, including sources of pollution, measurement techniques, effects of airborne pollutants and abatement methods. Issues such as the control of emissions, role of hygiene, maintenance of optimal air quality, the management of aerial environment as well as the use of modern technological tools in aid building management will be discussed in this publication. This book will provide a unique forum for leading international experts to convey up-to-date information to professionals involved in modern animal production."

Air Emissions from Animal Feeding Operations: Current Knowledge, Future Needs discusses the need for the U.S. Environmental Protection Agency to implement a new method for estimating the amount of ammonia, nitrous oxide, methane, and other pollutants emitted from livestock and poultry farms, and for determining how these emissions are dispersed in the atmosphere. The committee calls for the EPA and the U.S. Department of Agriculture to establish a joint council to coordinate and oversee short - and long-term research to estimate emissions from animal feeding operations accurately and to develop mitigation strategies. Their recommendation was for the joint council to focus its efforts first on those pollutants that pose the greatest risk to the environment and public health.

"The assessment builds on the work of the Livestock, Environment and Development (LEAD) Initiative"--Pref.

This book gives an overview of the relationships between agriculture and air quality, which is an issue of increasing importance for practitioners and policy makers. It provides the keys to understand natural and anthropogenic mechanisms governing emission and deposition of pollutants produced by and/or impacting agricultural activities It identifies how management practices can help mitigating emissions and how public policies on air pollution progressively addressed the agricultural sector This book was written for students, researchers and agriculture actors as well as for public decision-makers

From an environmental quality standpoint, much of the interest in animal agriculture has focused on impacts on water resources, because animal waste, if not properly managed, can harm water quality through surface runoff, direct discharges, spills, and leaching into soil and groundwater. A more recent issue is the contribution of emissions from animal feeding operations (AFO), enterprises where animals are raised in confinement, to air pollution. AFOs can affect air quality through emissions of gases such as ammonia and hydrogen sulfide, particulate matter, volatile organic compounds, hazardous air pollutants, and odor. These pollutants and compounds have a number of environmental and human health effects. Agricultural operations that emit large quantities of air pollutants may be subject to Clean Air Act regulation. Further, some livestock operations also may be regulated under the release reporting requirements of the Comprehensive Environmental Response, Compensation, and Liability Act (Superfund) and the Emergency Planning and Community Right-to-Know Act. Questions about the applicability of these laws to livestock and poultry operations have been controversial and have drawn congressional attention. Enforcement of these federal environmental laws requires accurate measurement of emissions to determine whether regulated pollutants are emitted in quantities that exceed specified thresholds. Yet experts believe that existing data provide a poor basis for regulating and managing air emissions from AFOs. In an effort to collect scientifically credible data, in January 2005 the Environmental Protection Agency (EPA) announced a plan that had been negotiated with segments of the animal agriculture industry. Called the Air Compliance Agreement, it is intended to produce air quality monitoring data on AFO emissions during a two-year study, while at the same time protecting participants through a "safe harbor" from liability under certain provisions of federal environmental laws. Participants will pay a civil penalty of about $500 per farm and will contribute $2,500 per farm for the monitoring program, which is expected to begin in 2007. Many producer groups support the agreement as essential to gathering valid data that are needed for decision making. However, critics, including environmentalists and state and local air quality officials, say that the Air Compliance Agreement will grant all participating animal producers a sweeping retrospective and prospective liability shield for violations of environmental laws, yet because fewer than three dozen farms will be monitored, it is too limited in scope to yield scientifically credible estimates of AFO emissions. Some industry groups have their own questions and reservations. Nearly 2,700 AFOs, representing more than 6,700 farms, signed up to participate in the agreement. In August 2006, EPA finished approving agreements with 2,568 AFOs. This report reviews key issues associated with the Air Compliance Agreement. It will be updated as warranted by events. Background information on air emissions from poultry and livestock operations, relevant federal environmental laws and regulations, congressional interest, state activities, and research needs are discussed in CRS Report RL32948, Air Quality Issues and Animal Agriculture: A Primer.