A soil scientist/chemist position is immediately available to research the fate of environmentally active compounds (e.g., nutrients, pharmaceuticals, metabolites, endocrine disrupters) related to sustainable management of soil, water, and other resources in livestock systems. Applicant will focus on how to detect, track, and measure environmentally active contaminants in livestock and agriculture systems; identify biological interactions and transport mechanisms of excreted and environmentally active compounds with manure, wastewater, soil, or other resources under laboratory and field-scale conditions; and identify technologies and management strategies to mitigate negative effects of these compounds in livestock and agriculture systems. Additional duties include collaborating with ARS scientists, as well as other federal entities, academia, and the private sector to improve sustainable manage soil resources in mixed agriculture and animal productions systems; and plan and conduct personal research, interpret results, publish research results in peer-reviewed scientific journals, and make presentations at scientific meetings.