Influence of PH on Release of Phosphorus from Lake Sediments PDF Download

Author: Jens Moller Andersen
Publisher:
ISBN:
Category :
Languages : en
Pages :

View

Book Description

Author: Lawrence H. Fisher
Publisher:
ISBN:
Category : Lake sediments
Languages : en
Pages : 36

View

Book Description

Author:
Publisher: DIANE Publishing
ISBN: 1428983872
Category :
Languages : en
Pages : 32

View

Book Description

Author: Raymond E. Wildung
Publisher:
ISBN:
Category : Eutrophication
Languages : en
Pages : 218

View

Book Description

Author: Richard Duane Spear
Publisher:
ISBN:
Category : Lake sediments
Languages : en
Pages : 496

View

Book Description

Author: Raymond E. Wildung
Publisher:
ISBN:
Category : Eutrophication
Languages : en
Pages : 218

View

Book Description

Author: P.C.M. Boers
Publisher: Springer Science & Business Media
ISBN: 9401115982
Category : Science
Languages : en
Pages : 382

View

Book Description
This Workshop was organized to assess the status of knowledge on the behaviour of phosphorus in sediments and to define gaps and reassess research strategies, particularly with respect to prevalent methodology and future approach; and to define gaps and reassess research strategies for water management measures in aquatic ecosystems, especially in relation to the release of phosphorus from the sediments and its impact on the functioning of the whole system.

Author: Renato Baudo
Publisher: CRC Press
ISBN: 1000724212
Category : Science
Languages : en
Pages : 432

View

Book Description
This important volume-the product of a meeting of a select group of scientists-provides the most recent research results from the world's leaders in the study of toxic pollutants in sediments. It gives practical information on measuring and mapping distributions of concentrations of pollutants and their toxic effects in sediments. Also covered are the use and relative advantages and disadvantages of benthic chambers, sedimentation traps, box corers, "peepers" and other sampling techniques in sediment research and assessment. Important topics covered include: bioassay, elemental speciation, diffuse source problems, nutrient flux, biomethylation, bioavailability, and toxicity assessment. Will help in assessment and monitoring of chemistry, dynamics, bioavailability, and toxicity of pollutants, as well helping to chart courses for remedial action. This book will be of interest to anyone interested in the processes controlling the chemistry and movement of pollutants in sediments, especially: limnologists aquatic toxicologists engineers lake managers ecologists biologists environmental chemists

Author: Kenneth J. Gibbons
Publisher:
ISBN:
Category : Lake ecology
Languages : en
Pages : 63

View

Book Description
The Laurentian Great Lakes contain approximately 2% of the world's freshwater and provide drinking water for more than 30 million people. Lake Erie is the shallowest and smallest of the Great Lakes. The western basin is the shallowest portion of Lake Erie and receives a majority of its water from the Maumee River and Detroit River. The Maumee River Watershed is the largest watershed in the Great Lakes and land use in the watershed dominated by urban and agricultural areas. Farm field run-off and combined sewer overflows from urban and agricultural areas contribute high concentrations of nutrients to the Maumee River. The high nutrient water flowing out of the Maumee River into the Western Basin of Lake Erie creates a good environment for Harmful Algal Blooms (HABs), which are primarily composed of Microcystis, to rapidly grow. HABs are a serious issue for Lake Erie because Microcystis produces a toxin that is harmful to humans. Research focused on decreasing HABs has identified phosphorus as the limiting nutrient. Phosphorus enters the lake through either external (phosphorus entering from outside the lake i.e. farm field run-off or inputs from tributaries) or internal loading (release of phosphorus from lake sediments). For Western Lake Erie, there are numerous studies on external loading of phosphorus, however there is considerably less research on internal phosphorus loading. Estimating internal loading of phosphorus is important because phosphorus concentrations in lake sediments can be orders of magnitude higher than phosphorus concentrations in lake water and can be a significant source of phosphorus. Phosphorus release rates from lake sediments can be affected by a variety of environmental factors such as pH, temperature, and dissolved oxygen concentration. If lake sediments become warmer and more hypoxic in response to climate change, the contribution of phosphorus from lake sediments may increase. The research conducted in this thesis investigates the effect of temperature on the release of phosphorus from anoxic lake sediments. This study aims to estimate phosphorus release rates for a range of temperatures under anoxic conditions for Western Lake Erie and to improve estimates of internal phosphorus loading. Sediment cores collected during the summer of 2014 and 2015 were incubated at 10°C, 20°C, 22°C, 27°C, and 30°C under anoxic conditions. Results from the sediment core incubations indicate that temperature, location, and duration of anoxia are significant influences on phosphorus release. Extrapolating the phosphorus release rates for the entire western basin, four days of anoxia at 30°C for the entire basin could result in the release of ~240 metric tons of phosphorus.

Author: Lawrence H. Fisher
Publisher:
ISBN:
Category : Lake sediments
Languages : en
Pages : 25

View

Book Description