Lisa Nowell
Lisa Nowell is a Research Chemist with the USGS National Water Quality Program (NWQP), National Water Quality Assessment Project (NAWQA).
Since 2013, I have been part of the Regional Stream-Quality Assessment (RSQA) team, which is a multidisciplinary team conducting a series of multistressor studies of wadable streams in the Midwest, Southeast, Pacific Northwest, Northeast, and Central Coastal California regions. My primary focus is to track, interpret and model the occurrence of pesticides in stream water and sediment at the regional scale; and to interpret data on sediment toxicity and ecological condition in relation to chemical stressors. I have participated in the design and implementation of NAWQA since 1991, when I first joined the USGS as a member of NAWQA’s Pesticide National Synthesis team. Since that time, I have conducted national and regional-scale assessments of pesticides in water, sediment, and aquatic biota, and with my colleagues have developed tools (such as sediment benchmarks, aquatic-life benchmarks, the Pesticide Toxicity Index, and Health-Based Screening Levels) for interpreting the biological significance of pesticides in water and sediment. I also evaluated contaminants in water and sediment on the Gulf Coast before and after the Deepwater Horizon oil spill, and I co-authored a book on pesticides in stream sediment and aquatic biota.
Before coming to the USGS, I worked for the Food and Drug Administration; was an American Association for the Advancement of Science Fellow in environmental science and engineering at the U.S. Environmental Protection Agency; and conducted post-doctoral research at the Swiss Federal Institute of Aquatic Science and Technology (EAWAG) in Switzerland. I am an active member of the Society for Environmental Toxicology and Chemistry (SETAC), American Chemical Society, and American Geophysical Union. I currently serve on the Meetings Committee and 2018 Program Committee of SETAC North America, and I am an Associate Editor of the journal, Human and Ecological Risk Assessment: An International Journal.
Science and Products
Water-Quality Benchmarks for Contaminants
Pesticides and Water Quality
Estimated Toxicity to Aquatic Organisms in Midwestern Streams Driven by Relatively Few of the 227 Pesticides Analyzed
New Sediment-Toxicity Benchmarks Available for Pesticides in Whole Sediment
Data set for a mesocosm to field assessment of the ecological risks associated with neonicotinoids in US streams
Pesticides in Weekly Water Samples from the NAWQA California Regional Stream Quality Assessment (2017)
Data set for an ecological risk assessment of Firpronil compounds in US streams
Dissolved Pesticides in Weekly Water Samples from the NAWQA Regional Stream Quality Assessments (2013-2017)
Pesticides in Daily and Weekly Water Samples from the NAWQA Midwest and Southeast Stream Quality Assessments (2013-2014)
Water-quality and stream-habitat metrics calculated for the National Water-Quality Assessment Program's Regional Stream Quality Assessment conducted in the southeast United States in support of ecological and habitat stressor models, 2014
Replicate surface water and groundwater data analyzed by USGS National Water Quality Laboratory schedule 2437, 2013-15
Mixtures of dissolved pesticides in 100 streams in the Midwestern U.S., 2013
Concentrations of glyphosate and atrazine compounds in 100 Midwest United States streams in 2013
Sediment chemistry and sediment toxicity in wadable streams across the Midwestern United States, 2013
Supporting Data: Complex Mixtures of Pesticides in Midwest U.S. Streams Indicated by POCIS Time-Integrating Samplers
Implementation of the CREED approach for environmental assessments
An introduction to Criteria for Reporting and Evaluating Exposure Datasets (CREED) for use in environmental assessments
Evaluating the reliability of environmental concentration data to characterize exposure in environmental risk assessments
Multiple lines of evidence point to pesticides as stressors affecting invertebrate communities in small streams in five United States regions
Ecological consequences of neonicotinoid mixtures in streams
New-generation pesticides are prevalent in California's Central Coast streams
Multiple in-stream stressors degrade biological assemblages in five U.S. regions
Is there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity
Inclusion of pesticide transformation products is key to estimating pesticide exposures and effects in small U.S. streams
Multi-region assessment of chemical mixture exposures and predicted cumulative effects in USA wadeable urban/agriculture-gradient streams
Chemical-contaminant mixtures are widely reported in large stream reaches in urban/agriculture-developed watersheds, but mixture compositions and aggregate biological effects are less well understood in corresponding smaller headwaters, which comprise most of stream length, riparian connectivity, and spatial biodiversity. During 2014–2017, the U.S. Geological Survey (USGS) measured 389 unique orga
Pesticides and pesticide degradates in groundwater used for public supply across the United States: Occurrence and human-health context
Common insecticide disrupts aquatic communities: A mesocosm-to-field ecological risk assessment of fipronil and its degradates in U.S. streams
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Water-Quality Benchmarks for Contaminants
Pesticides and Water Quality
Estimated Toxicity to Aquatic Organisms in Midwestern Streams Driven by Relatively Few of the 227 Pesticides Analyzed
New Sediment-Toxicity Benchmarks Available for Pesticides in Whole Sediment
Data set for a mesocosm to field assessment of the ecological risks associated with neonicotinoids in US streams
Pesticides in Weekly Water Samples from the NAWQA California Regional Stream Quality Assessment (2017)
Data set for an ecological risk assessment of Firpronil compounds in US streams
Dissolved Pesticides in Weekly Water Samples from the NAWQA Regional Stream Quality Assessments (2013-2017)
Pesticides in Daily and Weekly Water Samples from the NAWQA Midwest and Southeast Stream Quality Assessments (2013-2014)
Water-quality and stream-habitat metrics calculated for the National Water-Quality Assessment Program's Regional Stream Quality Assessment conducted in the southeast United States in support of ecological and habitat stressor models, 2014
Replicate surface water and groundwater data analyzed by USGS National Water Quality Laboratory schedule 2437, 2013-15
Mixtures of dissolved pesticides in 100 streams in the Midwestern U.S., 2013
Concentrations of glyphosate and atrazine compounds in 100 Midwest United States streams in 2013
Sediment chemistry and sediment toxicity in wadable streams across the Midwestern United States, 2013
Supporting Data: Complex Mixtures of Pesticides in Midwest U.S. Streams Indicated by POCIS Time-Integrating Samplers
Implementation of the CREED approach for environmental assessments
An introduction to Criteria for Reporting and Evaluating Exposure Datasets (CREED) for use in environmental assessments
Evaluating the reliability of environmental concentration data to characterize exposure in environmental risk assessments
Multiple lines of evidence point to pesticides as stressors affecting invertebrate communities in small streams in five United States regions
Ecological consequences of neonicotinoid mixtures in streams
New-generation pesticides are prevalent in California's Central Coast streams
Multiple in-stream stressors degrade biological assemblages in five U.S. regions
Is there an urban pesticide signature? Urban streams in five U.S. regions share common dissolved-phase pesticides but differ in predicted aquatic toxicity
Inclusion of pesticide transformation products is key to estimating pesticide exposures and effects in small U.S. streams
Multi-region assessment of chemical mixture exposures and predicted cumulative effects in USA wadeable urban/agriculture-gradient streams
Chemical-contaminant mixtures are widely reported in large stream reaches in urban/agriculture-developed watersheds, but mixture compositions and aggregate biological effects are less well understood in corresponding smaller headwaters, which comprise most of stream length, riparian connectivity, and spatial biodiversity. During 2014–2017, the U.S. Geological Survey (USGS) measured 389 unique orga
Pesticides and pesticide degradates in groundwater used for public supply across the United States: Occurrence and human-health context
Common insecticide disrupts aquatic communities: A mesocosm-to-field ecological risk assessment of fipronil and its degradates in U.S. streams
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.