Airsheds and Watersheds
Author:
Publisher:
Published: 1997
Total Pages: 40
ISBN-13:
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Ecotoxicology Essentials
Author: Donald W. Sparling
Publisher: Academic Press
Published: 2016-04-18
Total Pages: 502
ISBN-13: 0128019611
DOWNLOAD EBOOKEcotoxicology Essentials: Environmental Contaminants and Their Biological Effects on Animals and Plants provides a fundamental understanding of this area for students and professionals in ecotoxicology, ecology, conservation, chemistry, public health, wildlife management, fisheries, and many other disciplines. Although new chemicals and potential problems are developed every year, a basic education is essential to address these new challenges, and this work gives such training. Written with the regulatory framework in mind, the material guides readers on modelling, how to conduct assessments, and human and wildlife risk, focusing on effects on animals rather than transport of chemicals. Simple discussions of chemistry are complemented by coverage on the behavior of the animal, dynamics of the ecosystem, real-life situations like drought, and predators in the system – i.e., the natural system versus the lab setting. The book's first section contains chapters on the principles of contaminant toxicology including a brief history of the science of ecotoxicology, basic principles of the science, testing methods, and ways of determining if animals have been exposed to either acute or chronic concentrations of contaminants. The second section deals with the primary classes of contaminants including their chemical characteristics, sources, uses, and effects on organisms. The third section focuses on more complex issues such as the regulation of pollution, population and community effects, risk assessment and modelling. - Uses examples from both aquatic and terrestrial environments and species - Includes a Terms to Know section and a list of study questions in each chapter, fostering a greater understanding of the issues - Focuses on the effects of contaminants on wildlife while providing enough chemistry to allow a detailed understanding of the various contaminant groups - Emphasizes natural examples and 'real' species, rather than laboratory studies on only a handful of organisms - Features case histories, detailing actual events that include aspects of how the contamination occurred and its effects on wildlife - Provides material from a wide variety of international sources
National Environmental Laboratories, Hearings Before the Subcommittee on Air and Water Pollution ...
Author: United States. Congress. Senate. Committee on Public Works
Publisher:
Published: 1971
Total Pages: 1352
ISBN-13:
DOWNLOAD EBOOKNew Strategies for America's Watersheds
Author: National Research Council
Publisher: National Academies Press
Published: 1999-04-28
Total Pages: 333
ISBN-13: 0309064171
DOWNLOAD EBOOKEmergence of a toxic organism like pfisteria in tributaries of the Chesapeake Bay has focused public attention on potential hazards in our water. More importantly, it has reminded us of the importance of the entire watershed to the health of any body of water and how political boundaries complicate watershed management. New Strategies for America's Watersheds provides a timely and comprehensive look at the rise of "watershed thinking" among scientists and policymakers and recommends ways to steer the nation toward improved watershed management. The volume defines important terms, identifies fundamental issues, and explores reasons why now is the time to bring watersheds to the forefront of ecosystem management. In a discussion of scale and scope, the committee examines how to expand the watershed from a topographic unit to a framework for integrating natural, social, and economic perspectives as they share the same geographic space. The volume discusses: Regional variations in climate, topography, demographics, institutions, land use, culture, and law. Roles and interaction of federal, state, and local agencies. Availability or lack of pertinent data. Options for financing. The committee identifies critical points in watershed planning to ensure appropriate stakeholder involvement and integration of science, policy, and environmental ethics.
Clean Coastal Waters
Author: National Research Council
Publisher: National Academies Press
Published: 2000-08-17
Total Pages: 422
ISBN-13: 0309069483
DOWNLOAD EBOOKEnvironmental problems in coastal ecosystems can sometimes be attributed to excess nutrients flowing from upstream watersheds into estuarine settings. This nutrient over-enrichment can result in toxic algal blooms, shellfish poisoning, coral reef destruction, and other harmful outcomes. All U.S. coasts show signs of nutrient over-enrichment, and scientists predict worsening problems in the years ahead. Clean Coastal Waters explains technical aspects of nutrient over-enrichment and proposes both immediate local action by coastal managers and a longer-term national strategy incorporating policy design, classification of affected sites, law and regulation, coordination, and communication. Highlighting the Gulf of Mexico's "Dead Zone," the Pfiesteria outbreak in a tributary of Chesapeake Bay, and other cases, the book explains how nutrients work in the environment, why nitrogen is important, how enrichment turns into over-enrichment, and why some environments are especially susceptible. Economic as well as ecological impacts are examined. In addressing abatement strategies, the committee discusses the importance of monitoring sites, developing useful models of over-enrichment, and setting water quality goals. The book also reviews voluntary programs, mandatory controls, tax incentives, and other policy options for reducing the flow of nutrients from agricultural operations and other sources.
Achieving Nutrient and Sediment Reduction Goals in the Chesapeake Bay
Author: National Research Council
Publisher: National Academies Press
Published: 2011-09-26
Total Pages: 258
ISBN-13: 0309210828
DOWNLOAD EBOOKThe Chesapeake Bay is North America's largest and most biologically diverse estuary, as well as an important commercial and recreational resource. However, excessive amounts of nitrogen, phosphorus, and sediment from human activities and land development have disrupted the ecosystem, causing harmful algae blooms, degraded habitats, and diminished populations of many species of fish and shellfish. In 1983, the Chesapeake Bay Program (CBP) was established, based on a cooperative partnership among the U.S. Environmental Protection Agency (EPA), the state of Maryland, and the commonwealths of Pennsylvania and Virginia, and the District of Columbia, to address the extent, complexity, and sources of pollutants entering the Bay. In 2008, the CBP launched a series of initiatives to increase the transparency of the program and heighten its accountability and in 2009 an executive order injected new energy into the restoration. In addition, as part of the effect to improve the pace of progress and increase accountability in the Bay restoration, a two-year milestone strategy was introduced aimed at reducing overall pollution in the Bay by focusing on incremental, short-term commitments from each of the Bay jurisdictions. The National Research Council (NRC) established the Committee on the Evaluation of Chesapeake Bay Program Implementation for Nutrient Reduction in Improve Water Quality in 2009 in response to a request from the EPA. The committee was charged to assess the framework used by the states and the CBP for tracking nutrient and sediment control practices that are implemented in the Chesapeake Bay watershed and to evaluate the two-year milestone strategy. The committee was also to assess existing adaptive management strategies and to recommend improvements that could help CBP to meet its nutrient and sediment reduction goals. The committee did not attempt to identify every possible strategy that could be implemented but instead focused on approaches that are not being implemented to their full potential or that may have substantial, unrealized potential in the Bay watershed. Because many of these strategies have policy or societal implications that could not be fully evaluated by the committee, the strategies are not prioritized but are offered to encourage further consideration and exploration among the CBP partners and stakeholders.
Redesignate the Department of the Interior as the Department of Natural Resources
Author: United States. Congress. Senate. Committee on Government Operations. Subcommittee on Executive Reorganization
Publisher:
Published: 1968
Total Pages: 182
ISBN-13:
DOWNLOAD EBOOKSustainable Animal Agriculture
Author: Ermias Kebreab
Publisher: CABI
Published: 2013-12-13
Total Pages: 335
ISBN-13: 1780640420
DOWNLOAD EBOOKIn order to meet increasing global demand for meat and animal by-products increasingly intensive animal production is necessary. Creating a sustainable system in animal agriculture that works in different production environments is a major challenge for animal scientists. This book draws together themes on sustainability that have emerged as the most pressing in recent years. Addressing practical topics such as air quality, manure management, animal feeds, production efficiency, environmental sustainability, biotechnology issues, animal welfare concerns, societal impacts and an analysis of the data used to assess the economic sustainability of farms.
Air Pollution, 1967
Author: United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution
Publisher:
Published: 1967
Total Pages: 1128
ISBN-13:
DOWNLOAD EBOOKConsiders implementing a national automobile emission standard. Feb. 13 and 14 hearings were held in Los Angeles, Calif.; Feb. 20 and 21 hearings were held in Detroit, Mich., pt.1; Considers S. 780, the Air Quality Act of 1967, to establish a program of Federal air quality standards and assistance to state programs focusing on controlling automobile exhaust emissions. Apr. 3 hearing was held in Denver, Colo., and Apr. 4 hearing in St. Louis, Mo. pt. 2; Considers status of ambient air quality criteria. Includes the following reports. a. National Center for Air Pollution Control, "Current Status Report; State and Local Pollution Control Programs" May, 1967 (p. 1160-1283). b. New York City Council, "Air Pollution in New York City" June, 1965 (p. 1495-1568). c. New York City Council, "Blueprint for Cleaner Air" Dec. 1965 (p. 1569-1624), pt.3; to provide efficient air pollution controls for industry and autos, pt.3; Continuation of hearings considering S. 780, to provide efficient air pollution controls for industry and autos, pt.4.
Urban Stormwater Management in the United States
Author: National Research Council
Publisher: National Academies Press
Published: 2009-03-17
Total Pages: 611
ISBN-13: 0309125391
DOWNLOAD EBOOKThe rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.
