Data sources agricultural chemicals

Provides chemical, physical, analytical, use, and toxicity data for nearly 1200 pesticides, herbicides, and other agricultural chemicals. Contains The Agrochemicals Handbook from the Royal Society of Chemistry. Environmental fate/transport, resistance information, and lists of manufacturers are also included. A companion tool from the Royal Society of Chemistry is the 3rd edition of the World Directory of Pesticide Control Organizations (ISBN 0-85404437X), which gives sources of contacts in over 160 organizations worldwide involved in the control of pesticides. 

A little-known source of biodegradation rates of pesticides is data developed by the California Department of Food and Agriculture (CDFA). They estimated aerobic and anaerobic soil metabolism half-lives from open scientific literature and studies submitted to CDFA from chemical companies in compliance with the data call-in requirements of the Pesticide Contamination Prevention Act. Table 12.15 tabulates these data. 

Dietary exposure to pesticides (or to xenobiotics in general) is determined by calculating the product of the amount of chemical in or on the food and the total quantity of food consumed. The quantity of chemical potentially consumed in foods can be estimated from data obtained from residue field trials, metabolism studies, and/or monitoring data. Information from these sources is then analyzed with one of several available models containing food consumption factors from surveys conducted by the United States Department of Agriculture (USDA). For calculation of... 

Source Data compiled by Center for Sustainable Agriculture from U.S. EPA s Chemicals Evaluated for Carcinogenic Potential, July 2004, and from Insecticides Registered under Section 9(3) of the Insecticides Act 1968 of India, June 2005. 

There can also be a flammability limit associated with dust clouds. The flammability limits of combustible dusts are reported as the minimum explosion concentrations. The upper explosion limits for dust clouds have not been determined due to experimental difficulties. In the fourteenth edition of the Fire Protection Handbook [National Fire Protection Association (NFPA), Boston, MA, 1975], numerous results from the U.S. Bureau of Mines reports are listed. These results were obtained with dusts 74 fim or smaller. It should be noted that variations in minimum explosive concentrations will occur with change in particle diameter, i.e., the minimum explosive concentration is lowered as the diameter of the particle decreases. Other conditions which affect this limit are sample purity, oxygen concentration, strength of ignition source, turbulence, and uniformity of the dispersion. The NFPA tabulation is most extensive and includes data for dusts from agricultural materials, carbonaceous matter, chemicals, drugs, dyes, metals, pesticides, and various plastic resins and molding compounds. Except for metal... 

Exposure assessment includes both qualitative and quantitative evaluations of the potential for exposure to site-related chemicals to occur. Assessments commonly address both current and likely future uses of the property (e.g., residential, commercial, industrial, and agricultural). Typically, a conceptual model is developed that summarizes how site-related chemicals may contact receptors (e.g., humans, wildlife, and ecological). The model includes identification of chemical sources, impacted media, potential movement through the environment, identification of the appropriate exposure scenarios, and identification of the points at which contact between receptors and site-related chemicals are likely to occur. Chemical concentrations in environmental media may be estimated based on site data and using statistical analyses and/or fate and transport modeling. An estimate of the dose (intake) attributable to contact with environmental media through significant and completed pathways is made for chemicals of concern at... 

Chemical-Consuming Industries. This section contains sources of data on chemical-consuming industries, including agriculture. 

The intense public interest in chemical contamination of our nation s ground water has been well documented by the media. Pesticide contamination of ground water through agricultural use is a unique situation in comparison to contamination by point source leaching from dumps, landfills, and spills. Consequently, data bases for agricultural pesticide contamination are small, and published research and textbooks are limited. 

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