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| Author | : |
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| Total Pages | : 56 |
| Release | : 1993 |
| Genre | : Freshwater ecology |
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| Author | : |
| Publisher | : |
| Total Pages | : 82 |
| Release | : 1998 |
| Genre | : Stream ecology |
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Stream habitat is characterized in the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program as part of an integrated physical, chemical, and biological assessment of the Nation's water quality. The goal of stream habitat characterization is to relate habitat to other physical, chemical, and biological factors that describe water-quality conditions. To accomplish this goal, environmental settings are described at sites selected for water-quality assessment. In addition, spatial and temporal patterns in habitat are examined at local, regional, and national scales. This habitat protocol contains updated methods for evaluating habitat in NAWQA Study Units. Revisions are based on lessons learned after 6 years of applying the original NAWQA habitat protocol to NAWQA Study Unit ecological surveys. Similar to the original protocol, these revised methods for evaluating stream habitat are based on a spatially hierarchical framework that incorporates habitat data at basin, segment, reach, and microhabitat scales. This framework provides a basis for national consistency in collection techniques while allowing flexibility in habitat assessment within individual Study Units. Procedures are described for collecting habitat data at basin and segment scales; these procedures include use of geographic information system data bases, topographic maps, and aerial photographs. Data collected at the reach scale include channel, bank, and riparian characteristics.
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| Total Pages | : 67 |
| Release | : 1998 |
| Genre | : Stream ecology |
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| Author | : Roland W. Tollett |
| Publisher | : |
| Total Pages | : 78 |
| Release | : 2002 |
| Genre | : Government publications |
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| Author | : Debbie L. Adolphson |
| Publisher | : |
| Total Pages | : 64 |
| Release | : 2001 |
| Genre | : Environmental quality |
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| Author | : K.M. Scow |
| Publisher | : CRC Press |
| Total Pages | : 469 |
| Release | : 2019-09-17 |
| Genre | : Science |
| ISBN | : 0429526350 |
The new approach to ecosystem health is proactive. As a result, the scope of environmental studies is growing and the methods are evolving. Integrated Assessment of Ecosystem Health aggressively broadens the range of ecotoxicology to include its related fields. The book begins with John Cairns, Jr.'s predictions and recommendations for the futur
| Author | : Robert J. Gilliom |
| Publisher | : |
| Total Pages | : 42 |
| Release | : 1995 |
| Genre | : Water quality |
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| Author | : Chunlong Zhang |
| Publisher | : John Wiley & Sons |
| Total Pages | : 581 |
| Release | : 2024-02-29 |
| Genre | : Science |
| ISBN | : 111977859X |
Fundamentals of Environmental Sampling and Analysis A fully reworked and updated introduction to the fundamentals and applications of environmental sampling and analysis Environmental sampling and analysis are essential components of environmental data acquisition and scientific research. The acquisition of reliable data with respect to proper sampling, chemical and instrumental methodology, and QA/QC is a critical precursor to all environmental work. No would-be environmental scientist, engineer, or policymaker can succeed without an understanding of how to correctly acquire, assess and use credible data. Fundamentals of Environmental Sampling and Analysis, 2nd edition provides this understanding, with a comprehensive survey of the theory and applications of these critical sampling and analytical tools. The field of environmental research has expanded greatly since the publication of the first edition, and this book has been completely rewritten to reflect the latest studies and technological developments. The resulting mix of theory and practice will continue to serve as the standard introduction to the subject. Readers of the second edition of Fundamentals of Environmental Sampling and Analysis will also find: Three new chapters and numerous expanded sections on topics of emerging environmental concerns Detailed discussion of subjects including passive sampling, Raman spectroscopy, non-targeted mass spectroscopic analysis, and many more Over 500 sample problems and solutions along with other supplementary instructional materials Fundamentals of Environmental Sampling and Analysis is ideal for students of environmental science and engineering as well as professionals and regulators for whom reliable environmental data through sampling and analysis is critical.
| Author | : |
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| Total Pages | : 68 |
| Release | : 2003 |
| Genre | : Hydrology |
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| Author | : Shabeg S. Sandhu |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 593 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 9401149763 |
The Environmental Monitoring and Assessment Program was created by EPA to develop the capability for tracking the changing conditions of our natural resources and to give environmental policy the advantages ofa sound scientific understanding of trends. Former EPA Administrators recognized early that contemporary monitoring programs could not even quantify simple unknowns like the number of lakes suffering from acid rain, let along determine if national control policies were benefiting these lakes. Today, adding to acidification impacts are truly complex problems such as determining the effects of climate change, of increases in ultraviolet light, toxic chemicals, eutrophication and critical habitat loss. Also today, the Government Performance and Results Act seeks to have agencies develop performance standards based on results rather than simply on levels of programmatic activities. The charge to EMAP of ecosystems is, therefore, the same today as it was a with respect to measuring the condition decade ago. We welcome the increasing urgency for sound scientific monitoring methods and data by efforts to protect and improve the environment. Systematic nationwide monitoring of natural resources is more than anyone program can accomplish, however. In an era of declining budgets, it is crucial that monitoring programs at all levels of government coordinate and share environmental data. EMAP resources are dwarfed by the more than $500 million spent on federal monitoring activities each year.
