Examen Des Biotests Effectues Sur Des Organismes Entiers Pour Levaluation De La Qualite Des Sols Des Sediments Et Des Eaux Douces Au Canada
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Author | : Margarita Stoytcheva |
Publisher | : BoD – Books on Demand |
Total Pages | : 826 |
Release | : 2011-01-21 |
Genre | : Technology & Engineering |
ISBN | : 9533075325 |
This book provides an overview on a large variety of pesticide-related topics, organized in three sections. The first part is dedicated to the "safer" pesticides derived from natural materials, the design and the optimization of pesticides formulations, and the techniques for pesticides application. The second part is intended to demonstrate the agricultural products, environmental and biota pesticides contamination and the impacts of the pesticides presence on the ecosystems. The third part presents current investigations of the naturally occurring pesticides degradation phenomena, the environmental effects of the break down products, and different approaches to pesticides residues treatment. Written by leading experts in their respective areas, the book is highly recommended to the professionals, interested in pesticides issues.
Author | : Jean-Louis Riviére |
Publisher | : Science Publishers |
Total Pages | : 244 |
Release | : 2000 |
Genre | : Science |
ISBN | : |
This work presents an holistic view of the fundamental principles and practicable methods of polluted soils. A set of definitions is presented and different aspects of the evolution of pollutants and their toxicity are developed.
Author | : Cathy Keddy |
Publisher | : |
Total Pages | : 204 |
Release | : 1994 |
Genre | : Biological assay |
ISBN | : |
A usable set of tests that do not require further work was found for all three media considered. Additional effort required to evaluate the prototype tests to assessment battery condidates was identified. The final test composition of current and future assessment batteries also involved consideration of trophic level representation, sensitivity, reproducibility, and Canadian relevance. Future priorities for contaminant assessment with biological organisms were identified for each medium. including upgrading and developing new whole organism tests, multispecies testing, assessing contaminant impacts on microbial processes, and in situ testing.
Author | : Keddy, Cathy |
Publisher | : Environnement Canada, Direction générale de la conservation des écosystèmes, Direction de l'évaluation et de l'interprétation |
Total Pages | : 193 |
Release | : 1994 |
Genre | : Biological assay |
ISBN | : 9780662999041 |
Author | : |
Publisher | : |
Total Pages | : 330 |
Release | : 1968 |
Genre | : Hydrology |
ISBN | : |
Author | : Food and Agriculture Organization of the United Nations |
Publisher | : Food & Agriculture Org. |
Total Pages | : 172 |
Release | : 2018-05-08 |
Genre | : Juvenile Nonfiction |
ISBN | : 925107948X |
The ocean covers 70 percent of the Earth’s surface, and is essential for life on our planet – even for those of us who live nowhere near the sea! It provides us all with food and other materials that we need, regulates our climate and provides half of the oxygen we breathe. The ocean also offers us various means of transport and opportunities for recreation. People have long thought that the ocean was so wide and bountiful that it would go on supplying our needs forever, but this is not the case: human activities are causing significant damage to life in the ocean. People are often unaware of the problems created by this heavy reliance, as few of us have the opportunity to look beneath the surface of the sea and see the damage that our actions have caused. This is where the Ocean Challenge Badge comes in: let it take you on a journey to discover the ocean! It is packed with activities to help you learn about how the ocean works, the creatures that live in it, and just how important it is in our everyday lives. You will also discover how YOU can play a role in protecting our ocean for future generations. We hope you will be inspired to take the challenge and celebrate our ocean. So dive in and begin your aquatic discoveries!
Author | : Samuel Adjei-Nsiah |
Publisher | : |
Total Pages | : 234 |
Release | : 2006 |
Genre | : Agriculture |
ISBN | : |
However, there is still considerable scope for further development of these self-organised innovations.
Author | : L.T. West |
Publisher | : Springer |
Total Pages | : 398 |
Release | : 2016-09-19 |
Genre | : Nature |
ISBN | : 331941870X |
This book provides an overview of the distribution, properties, and function of soils in the U.S., including Alaska, Hawaii, and its Caribbean territories. It discusses the history of soil surveys and pedological research in the U.S., and offers general descriptions of the country’s climate, geology and geomorphology. For each Land Resource Region (LRR) – a geographic/ecological region of the country characterized by its own climate, geology, landscapes, soils, and agricultural practices – there is a chapter with details of the climate, geology, geomorphology, pre-settlement and current vegetation, and land use, as well as the distribution and properties of major soils including their genesis, classification, and management challenges. The final chapters address topics such as soils and humans, and the future challenges for soil science and soil surveys in the U.S. Maps of soil distribution, pedon descriptions, profile images, and tables of properties are included throughout the text.
Author | : Arthur John George Notholt |
Publisher | : |
Total Pages | : 344 |
Release | : 1990 |
Genre | : Science |
ISBN | : |
Author | : Donald J. Nelson |
Publisher | : |
Total Pages | : 16 |
Release | : 1967 |
Genre | : Radioactive pollution |
ISBN | : |