Fate and Transport of Three Pharmaceuticals in the Sacramento-San Joaquin Delta PDF Download
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Author: Minta Marie Schaefer
Publisher:
ISBN: 9781267025357
Category :
Languages : en
Pages :
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Book Description
Pharmaceuticals and personal care products (PPCPs) are found in surface waters worldwide and wastewater treatment plant effluent is the primary source of these contaminants. The sharp decline of four pelagic fish species in the Sacramento-San Joaquin Delta (Delta) in the last decade is just one of several indicators that the ecosystem is severely impaired. Several wastewater treatment plants discharge directly or tributary to the Delta. This study examines the presence of PPCPs in the Delta through passive sampler monitoring of the Sacramento River in the vicinity of the Sacramento Regional Wastewater Treatment Plant. The fate and transport of carbamazepine, fluoxetine, and trimethoprim in the Delta was analyzed using the 2-D finite element RMA Bay-Delta Model. Results indicate that these pharmaceuticals are present at low ng/L levels at all 45 model output locations and therefore, aquatic organisms within the Delta are continually exposed to these contaminants.
Author: Minta Marie Schaefer
Publisher:
ISBN: 9781267025357
Category :
Languages : en
Pages :
Get Book Here
Book Description
Pharmaceuticals and personal care products (PPCPs) are found in surface waters worldwide and wastewater treatment plant effluent is the primary source of these contaminants. The sharp decline of four pelagic fish species in the Sacramento-San Joaquin Delta (Delta) in the last decade is just one of several indicators that the ecosystem is severely impaired. Several wastewater treatment plants discharge directly or tributary to the Delta. This study examines the presence of PPCPs in the Delta through passive sampler monitoring of the Sacramento River in the vicinity of the Sacramento Regional Wastewater Treatment Plant. The fate and transport of carbamazepine, fluoxetine, and trimethoprim in the Delta was analyzed using the 2-D finite element RMA Bay-Delta Model. Results indicate that these pharmaceuticals are present at low ng/L levels at all 45 model output locations and therefore, aquatic organisms within the Delta are continually exposed to these contaminants.
Author: Arnas Palaima
Publisher: Univ of California Press
ISBN: 0520274296
Category : Business & Economics
Languages : en
Pages : 288
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Book Description
The San Francisco Bay, the biggest estuary on the west coast of North America, was once surrounded by an almost unbroken chain of tidal wetlands, a fecund sieve of ecosystems connecting the land and the Bay. Today, most of these wetlands have disappeared under the demands of coastal development, and those that remain cling precariously to a drastically altered coastline. This volume is a collaborative effort of nearly 40 scholars in which the wealth of scientific knowledge available on tidal wetlands of the San Francisco Estuary is summarized and integrated. This book addresses issues of taxonomy, geomorphology, toxicology, the impact of climate change, ecosystem services, public policy, and conservation, and it is an essential resource for ecologists, environmental scientists, coastal policymakers, and researchers interested in estuaries and conserving and restoring coastal wetlands around the world.
Author: Ellen Hanak
Publisher: Public Policy Instit. of CA
ISBN: 1582131414
Category : Business & Economics
Languages : en
Pages : 500
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Book Description
Author:
Publisher: Academic Press
ISBN: 0080878857
Category : Science
Languages : en
Pages : 4604
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Book Description
The study of estuaries and coasts has seen enormous growth in recent years, since changes in these areas have a large effect on the food chain, as well as on the physics and chemistry of the ocean. As the coasts and river banks around the world become more densely populated, the pressure on these ecosystems intensifies, putting a new focus on environmental, socio-economic and policy issues. Written by a team of international expert scientists, under the guidance of Chief Editors Eric Wolanski and Donald McClusky, the Treatise on Estuarine and Coastal Science, Ten Volume Set examines topics in depth, and aims to provide a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Most up-to-date reference for system-based coastal and estuarine science and management, from the inland watershed to the ocean shelf Chief editors have assembled a world-class team of volume editors and contributing authors Approach focuses on the physical, biological, chemistry, ecosystem, human, ecological and economics processes, to show how to best use multidisciplinary science to ensure earth's sustainability Provides a comprehensive scientific resource for all professionals and students in the area of estuarine and coastal science Features up-to-date chapters covering a full range of topics
Author:
Publisher:
ISBN:
Category : Chlordan
Languages : en
Pages : 286
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Book Description
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 636
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309086256
Category : Technology & Engineering
Languages : en
Pages : 433
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Book Description
Bioavailability refers to the extent to which humans and ecological receptors are exposed to contaminants in soil or sediment. The concept of bioavailability has recently piqued the interest of the hazardous waste industry as an important consideration in deciding how much waste to clean up. The rationale is that if contaminants in soil and sediment are not bioavailable, then more contaminant mass can be left in place without creating additional risk. A new NRC report notes that the potential for the consideration of bioavailability to influence decision-making is greatest where certain chemical, environmental, and regulatory factors align. The current use of bioavailability in risk assessment and hazardous waste cleanup regulations is demystified, and acceptable tools and models for bioavailability assessment are discussed and ranked according to seven criteria. Finally, the intimate link between bioavailability and bioremediation is explored. The report concludes with suggestions for moving bioavailability forward in the regulatory arena for both soil and sediment cleanup.
Author: John Risher
Publisher: DIANE Publishing
ISBN: 143793076X
Category : Health & Fitness
Languages : en
Pages : 457
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Book Description
Selenium (SE) and its compounds are used in photographic devices, gun gluing, plastics, paints, anti-dandruff shampoos, vitamin and mineral supp., fungicides, and glass. It is also used to prepare drugs and as a nutritional feed supp. for poultry and livestock. This profile includes: (a) The exam¿n. of toxicologic info. and epidemiologic evaluations on SE to ascertain the levels of significant human exposure for the substance and the chronic health effects; (b) A determination of whether adequate info. on the health effects of SE is avail. to determine levels of exposure that present a significant risk to human health (SRHH); and (c) Ident¿n. of toxicologic testing needed to identify the types of exposure that may present SRHH. Illus. A print on demand pub.
Author: United States. Environmental Protection Agency
Publisher:
ISBN:
Category : DDT (Insecticide)
Languages : en
Pages : 316
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 030930783X
Category : Medical
Languages : en
Pages : 340
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Book Description
How we produce and consume food has a bigger impact on Americans' well-being than any other human activity. The food industry is the largest sector of our economy; food touches everything from our health to the environment, climate change, economic inequality, and the federal budget. From the earliest developments of agriculture, a major goal has been to attain sufficient foods that provide the energy and the nutrients needed for a healthy, active life. Over time, food production, processing, marketing, and consumption have evolved and become highly complex. The challenges of improving the food system in the 21st century will require systemic approaches that take full account of social, economic, ecological, and evolutionary factors. Policy or business interventions involving a segment of the food system often have consequences beyond the original issue the intervention was meant to address. A Framework for Assessing Effects of the Food System develops an analytical framework for assessing effects associated with the ways in which food is grown, processed, distributed, marketed, retailed, and consumed in the United States. The framework will allow users to recognize effects across the full food system, consider all domains and dimensions of effects, account for systems dynamics and complexities, and choose appropriate methods for analysis. This report provides example applications of the framework based on complex questions that are currently under debate: consumption of a healthy and safe diet, food security, animal welfare, and preserving the environment and its resources. A Framework for Assessing Effects of the Food System describes the U.S. food system and provides a brief history of its evolution into the current system. This report identifies some of the real and potential implications of the current system in terms of its health, environmental, and socioeconomic effects along with a sense for the complexities of the system, potential metrics, and some of the data needs that are required to assess the effects. The overview of the food system and the framework described in this report will be an essential resource for decision makers, researchers, and others to examine the possible impacts of alternative policies or agricultural or food processing practices.
