This Standard specifies the maximum-level indexes of lead, cadmium, mercury, arsenic, tin, nickel, chromium, nitrite, nitrate, benzo[a]pyrene, N-dimethyl nitrosamine, polychlorinated biphenyl, 3-chlorine-1, and 2-propanediol in foods.
This Standard specifies the limit indicators of lead, cadmium, mercury, arsenic, tin, nickel, chromium, nitrite, nitrate, benzo [a] pyrene, N-dimethyl nitrosamine and chlorine-1,2-propanediol in foods.
The unique responses of plants to combined stresses have been observed at physiological, biochemical, and molecular levels. This book provides an analysis of all three levels of change in various plants in response to different combinations of stresses. The text provides a general review of the combined stress paradigm, focuses on the impact of higher CO2 levels in combination with other stresses, examines drought stress in conjunction with other abiotic factors in different crop plants as well as the combination of biotic and abiotic factors, and discusses the impact of combined stresses in forest ecosystems. Written by experts in the field, Combined Stresses in Plants: Physiological, Molecular, and Biochemical Aspects is a valuable resource for scientists, graduate students, and post-doctoral fellows alike working in plant stresses.
Coral reefs are among Earth's most diverse, productive, and beautiful ecosystems, but until recently, their ecology and the means to manage them have been poorly understood and documented. In response to the inadequate information base for coral reefs, this book reviews the ecological and conservation status of coral reefs of the Western Indian Ocean, bringing together presentations of the region's leading scientists and managers working on coral reefs. Coral Reefs of the Indian Ocean: Their Ecology and Conservation starts with a general overview of the biogeography of the region and a historical account of attempts to conserve this ecosystem. It goes on to describe the state of the reefs in each of the countries with coral reefs, and it concludes with a series of management case studies. The book also summarizes most of the existing ecological information on reefs in this region and efforts at management, making it useful for students, teachers, and investigators interested in tropical or marine ecology, conservation biology and management, and environmental sciences.
This report provides the scientific supporting information & rationale for the development of Canadian soil quality guidelines for the protection of environmental health for toluene, ethylbenzene, & xylenes (TEX). Information is provided on TEX physical & chemical properties, analytical methods, TEX production & uses, global sources of TEX, sources & levels of TEX in the Canadian environment, environmental fate & behaviour of TEX in soil & water, and behaviour & effects in biota (terrestrial plants & invertebrates, soil microbes, livestock & wildlife), and behaviour & effects of TEX in humans & mammals, including uptake, metabolism, elimination, & toxicity. The final sections describe how the soil quality guidelines for TEX were derived and set out the guidelines for agricultural, residential/parkland, commercial, and industrial land use. Areas for future research are also summarized.
This book describes the physiological and anatomical principles and the chemical and physical factors that determine uptake, translocation, accumulation, loss, and metabolism of anthropogenic chemicals in plants. Expert authors in the fields of biology, chemistry, ecology, environmental physics, and biochemistry provide recently developed methods and models for estimation of the behavior of environmental chemicals in the soil-plant-air system-information that is essential in the hazard assessment of new and existing chemicals.
Environmental Toxicology is the third volume of a three-volume set on molecular, clinical and environmental toxicology that offers a comprehensive and in-depth response to the increasing importance and abundance of chemicals of daily life. By providing intriguing insights far down to the molecular level, this three-volume work covers the entire range of modern toxicology with special emphasis on recent developments and achievements. It is written for students and professionals in medicine, science, public health or engineering who are demanding reliable information on toxic or potentially harmful agents and their adverse effects on the human body.