UNIVERSITY PARK, Pa. — Flow rates and time of year must be taken into account to better understand the potential risks posed by emerging organic contaminants in rivers and streams, according to Penn State researchers who studied contaminant concentrations and flow characteristics at six locations near drinking water intakes in the Susquehanna River basin.
While many studies have looked at the levels of emerging organic contaminants such as pharmaceuticals and pesticides in rivers and their effect on aquatic life, this is one of the first projects to closely correlate pollutant levels with flows, noted researcher Heather Preisendanz, associate professor of agricultural and biological engineering.
Explore the systems and components that make up modern dairy farms and learn how management practices impact sustainable production while addressing climate change challenges.
This virtual farms shows typical dairy farming practices for modern farming systems with 150 and 1500 cows. Each system can be investigated at a variety of levels by using the mouse to hover over a farm component. By drilling down deeper and deeper into the knowledge base, the user will gain a better understanding of how farm operations work.
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