Lake Michigan Suspended Sediment Characteristics at Grand Haven, Michigan, 1979

Lake Michigan Suspended Sediment Characteristics at Grand Haven, Michigan, 1979

Author: N. Hawley


ISBN: UCSD:31822023468929

Category: Sediment, Suspended

Page: 536

View: 144

Suspended sediments collected on 4 different days in 1979 have been ,easured with a Quantimet image analyzer and identified by particle type. The data may be used to deduce changes in particle composition as a function of particle size, season of the year, and water depth

Solving Problems and Handling Data

Solving Problems and Handling Data

Author: David Clemson

Publisher: Nelson Thornes

ISBN: 9780748765478

Category: Mathematics

Page: 160

View: 904

Maths Action Plans is a series of four books for Years 4-6/P5-7, offering flexible, supportive teacher and pupil resources and coherent coverage of the five strands of the Framework for Teaching Mathematics. The series provides inspiring, flexible activities that can be fitted into any maths scheme. Each title contains: clear learning objectives, linked to the Framework for Teaching Maths, the National Curriculum Programme of Study and the 5-14 National Guidelines for Mathematics; lesson plans with up to three levels of differentiation; supplementary activities for consolidation or linked work; and suggestions for the application of ICT skills.

Environmental Impact of Highway Deicing

Environmental Impact of Highway Deicing

Author: Ed Struzeski


ISBN: UIUC:30112008496991

Category: Deicing chemicals

Page: 120

View: 695

Deicing agents for removal of ice and snow from highways and streets are essential to wintertime road maintenance in most areas of the U.S. Due to the ever-increasing use of highway deicing materials, there has been growing concern as to environmental effects resulting from these practices. The state-of-the-art report critically reviews the available information on methods, equipment and materials used for snow and ice removal; chlorides found in rainfall and municipal sewage during the winter; salt runoff from streets and highways; deicing compounds found in surface streams, public water supplies, groundwater, farm ponds and lakes; special additives incorporated into deicing agents; vehicular corrosion and deterioration of highway structures and pavements; and effects on roadside soils, vegetation and trees. Highway deicing can cause injury and damage across a wide environmental spectrum. Recommendations describe future research, development and demonstration efforts necessary to assess and reduce the adverse impact of highway deicing.