The use of agricultural chemicals is an important aspect of animal production. Animal scientists have played an active and varied role in the recent and rapidly developed use of these chemicals. Although approval to use agricultural chemicals has always been based on both efficacy and end point residues, increased consumer concerns during the past one and one-half decades about the safety of th...

Current heavy reliance on agricultural chemicals in US agriculture has raised many environmental and economic concerns. Farmers need to find a way of optimal application of agricultural chemicals. Among agricultural chemicals, nitrogen (N) is the most important and essential for growing crops. In this research, a nitrogen sensor was developed to assess nitrogen status of corn plants and to appl...

Corrosion is the deterioration of materials by chemical interaction with their environment. The consequences of corrosion are many and varied. The effects of these on the safe, reliable and efficient operation of equipment or structures are often more serious than the simple loss of a mass of metal. The two main reasons for replacing machinery or equipment include upgrading old equipment and su...

Recently, many accidents relating to food happened in Japan. The consumer's distrust for food, food companies, and the administration is increasing. The consumer especially has an extreme refusal feeling for chemicals such as food additives and agricultural chemicals, and begins to request agricultural chemical-free vegetables and food additive-free food. Food companies also state no agricultur...

This population-based case-control study was conducted in three countries in western Washington State to evaluate associations between workplace exposures and the risk of amyotrophic lateral sclerosis (ALS). Cases (n = 174) were all newly diagnosed with ALS by neurologists during 1990-1994, and controls (n = 348), who were matched according to age (+/-5 years) and sex, were identified via rando...

Contents 1. Introduction 2. Causative materials for contamination of surface water 3. Heavy metals 4. Pollution for the phthalate esters caused from human activities 5. Endocrine disrupting chemicals 6. Persistent organic pollutants (POPs) 6.1. Organic chlorinated chemicals 6.2. Organic phosphorylated chemicals 6.3. Other agricultural chemicals 6.4. Perfluorooctane sulfonate (PFOS) and perfluor...

National Center for Agricultural Utilization Research, USDA, Agricultural Research Service, 1815 North University Street, Peoria, IL 61604, USA E-mail: [email protected]; 2Biotechnology Division for Fuels and Chemicals, National Renewable Energy Laboratory, Golden, CO 80401, USA 3Eastern Regional Research Center, USDA, Agricultural Research Service, Wyndmoor, PA 19038, USA 4Department of Agr...

I h e efficiency of US agricultural production has increased through the use of machinery, biotechnology, and chemicals so that one farmer is now able to feed 100 Americans. During this past decade, however, many people, including those in the agricultural industry, have felt that more attention must be directed toward the preservation of the environment. Because agricultural practices such as ...