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Estimated Pesticide Use On Golf Courses In Hawaii
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Book Synopsis Estimated Pesticide Use on Golf Courses in Hawaii by : Barry M. Brennan
Download or read book Estimated Pesticide Use on Golf Courses in Hawaii written by Barry M. Brennan and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inputs of Nutrients and Pollutants to Hawaiian Coastal Waters from Submarine Groundwater Discharge by : Karen Lisa Knee
Download or read book Inputs of Nutrients and Pollutants to Hawaiian Coastal Waters from Submarine Groundwater Discharge written by Karen Lisa Knee and published by Stanford University. This book was released on 2010 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Submarine groundwater discharge (SGD) is a spatially pervasive phenomenon that adds freshwater, nutrients, dissolved metals, bacteria, and other constituents to the coastal ocean. This dissertation investigated SGD-related inputs of nutrients and fecal indicator bacteria (Escherichia coli and Enterococcus sp.) to coastal waters in two Hawaiian locations, the north shore of Kaua'i and the Kona coast of Hawai'i. Concentrations of caffeine, which has been used previously as a wastewater tracer, were measured in groundwater and surface water on the north shore of Kaua'i. Both study areas have relatively light levels of urban and agricultural development, and maintaining good water quality is essential for their tourism-based economies, coral reefs, fisheries, and traditional way of life. Radium (Ra), an element with naturally elevated concentrations in coastal groundwater, was used as an SGD tracer and a mass-balance approach was used to quantify SGD. On the north shore of Kaua'i, agriculture was associated with higher nitrate + nitrite concentrations in the fresh SGD component, while phosphate and silica appeared to be controlled by geological differences in aquifer substrate. High ammonium concentrations in the fresh SGD component at one site may have been caused by a leaky cesspool. In Kona, no relation between urban development or agriculture and groundwater nutrient concentrations was observed, but bare lava rock was associated with higher nitrate + nitrite and silica concentrations in fresh SGD. Sites closer to golf courses also had higher nitrate + nitrite concentrations. Conservative estimates of total SGD on the north shore of Kaua'i ranged from 1.3 to 7.8 L per meter per minute, or up to 10% of Hanalei River discharge, and SGD contributed significant nitrate + nitrite inputs to Hanalei Bay. Estimates of SGD in Kona ranged from 5 to 1200 L per meter per minute, with between 10 and 100% of the brackish SGD comprised by the fresh SGD component. SGD-related water and nutrient fluxes on the Kona Coast -- where no rivers and streams are present -- were large compared to those reported for other sites worldwide. Caffeine concentrations in environmental waters on the north shore of Kaua'i ranged from 0-88 ng/L, on the low end of what has been reported for other locations. Metribuzin, an herbicide, was also detected at concentrations from 4-11 ng/L in five groundwater and surface water samples. A sensitivity analysis of Ra-based methods of estimating water ages and coastal mixing rates revealed that water ages shorter than 3 d cannot be estimated with confidence using Ra-based methods, even if the only uncertainty considered is analytical error. In conclusion, this dissertation provides new data about SGD and related inputs of nutrients and bacteria to Hawaiian coastal waters, suggests that even low levels of development may influence nutrient concentrations in coastal groundwater, presents the first caffeine concentrations measured in environmental water samples collected in a tropical setting, and explores the limits of applicability of Ra-based methods of estimating water ages and coastal mixing rates, providing guidance for researchers conducting Ra-based SGD studies in the future.
Book Synopsis Fate and Management of Turfgrass Chemicals by : John Marshall Clark
Download or read book Fate and Management of Turfgrass Chemicals written by John Marshall Clark and published by . This book was released on 2000 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the study of turfgrass chemicals and pesticides, their effectiveness, and environmental impact. It looks at related health and occupational hazards and suggests ways to minimize the use of chemicals.
Book Synopsis Hawaii's Coastal Nonpoint Pollution Control Program by : Hawaii Coastal Zone Management Program
Download or read book Hawaii's Coastal Nonpoint Pollution Control Program written by Hawaii Coastal Zone Management Program and published by . This book was released on 1996 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Setting and the Effects of Natural and Human-related Factors on Water Quality and Aquatic Biota, Oahu, Hawaii by : Delwyn S. Oki
Download or read book Environmental Setting and the Effects of Natural and Human-related Factors on Water Quality and Aquatic Biota, Oahu, Hawaii written by Delwyn S. Oki and published by . This book was released on 2003 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-resources Investigations Report by :
Download or read book Water-resources Investigations Report written by and published by . This book was released on 2003 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-resources Investigations Report by : Delwyn S. Oki
Download or read book Water-resources Investigations Report written by Delwyn S. Oki and published by . This book was released on 2003 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research Extension Series written by and published by . This book was released on 1980 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 1975 with total page 2054 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Checklist of State Publications by : Library of Congress. Exchange and Gift Division
Download or read book Monthly Checklist of State Publications written by Library of Congress. Exchange and Gift Division and published by . This book was released on 1993 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: An annual index to the monographs appears early in the following year.
Book Synopsis Evaluation of Pesticide Problems in Hawaii by : Hawaii. Department of Agriculture
Download or read book Evaluation of Pesticide Problems in Hawaii written by Hawaii. Department of Agriculture and published by . This book was released on 1969 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Acquisition List by : University of Hawaii at Manoa. Library. Hawaiian Collection
Download or read book Acquisition List written by University of Hawaii at Manoa. Library. Hawaiian Collection and published by . This book was released on 1993 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hawaii Documents written by and published by . This book was released on 1987 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Survey of Pesticide Use on Ohio Golf Courses, 1978 by : Philip O. Larsen
Download or read book A Survey of Pesticide Use on Ohio Golf Courses, 1978 written by Philip O. Larsen and published by . This book was released on 1981 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hawaii Documents: Cumulative Index by : Hawaii Documents Center
Download or read book Hawaii Documents: Cumulative Index written by Hawaii Documents Center and published by . This book was released on 1991 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hayes' Handbook of Pesticide Toxicology by :
Download or read book Hayes' Handbook of Pesticide Toxicology written by and published by Academic Press. This book was released on 2010-02-15 with total page 2407 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Pesticide Toxicology is a comprehensive, two-volume reference guide to the properties, effects, and regulation of pesticides that provides the latest and most complete information to researchers investigating the environmental, agricultural, veterinary, and human-health impacts of pesticide use. Written by international experts from academia, government, and the private sector, the Handbook of Pesticide Toxicology is an in-depth examination of critical issues related to the need for, use of, and nature of chemicals used in modern pest management. This updated 3e carries on the book’s tradition of serving as the definitive reference on pesticide toxicology and recognizes the seminal contribution of Wayland J. Hayes, Jr., co-Editor of the first edition. Presents a comprehensive look at all aspects of pesticide toxicology in one reference work. Clear exposition of hazard identification and dose response relationships in each chapter featuring pesticide agents and actions All major classes of pesticide considered Different routes of exposure critically evaluated
Book Synopsis Hawaii Documents: Cumulative Index by : Hawaii Documents Center (Hawaii State Library)
Download or read book Hawaii Documents: Cumulative Index written by Hawaii Documents Center (Hawaii State Library) and published by . This book was released on 1988 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: