Occurrence and behavior of the herbicide prometon in the hydrologic system

Article Abstract:

Prometon has been detected in surface, ground, and rain water in urban sites. The U.S. Geological Survey found that this wide-spread herbicide is the most commonly found herbicide detected in the water sources mentioned, and the fourth most commonly found herbicide in agricultural water sources. Yet, water is rarely tested for prometon. The herbicide has little use in agricultural and urban locations, as it kills all plants in the application area for at least one year. Prometon is used with asphalt pavements. The USDA rated the run off rate of prometon and a structurally similar herbicide atazine to be very high.

Agricultural Chemicals, Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing, Agricultural chemicals industry, United States. Department of Agriculture, Water, Underground, Groundwater, Prometon (Herbicide)

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Everglades mercury debate

Article Abstract:

Preliminary results from the ongoing Aquatic Cycling of Mercury in the Everglades project by the U.S. Geological Survey indicate that methylmercury production may be increasing due to the use of sulfur-based fertilizers by Florida sugarcane farmers. The article discusses the role of sulfur in the mercury problem.

Florida, Environmental Scientists, Usage, Brief Article, Causes of, Environmental aspects, Contamination, Fertilizer application, Everglades, Methylmercury, Methylmercury compounds, Sulfur, Fertilizers

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Are shifts in herbicide use reflected in concentration changes in midwestern rivers?

Article Abstract:

Researchers from the U.S. Geological Survey studied the decline of herbicide concentrations from midwestern rivers between 1989 and 1995.

Water Pollution Control R&D, Measurement, River sediments, Water pollution research

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