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Barbara Mahler on Muck Rack

Barbara Mahler

As seen in: Journal of Environmental Quality, The Toronto Star, ACS Publications, Science Magazine
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Articles

Sediment Sources and Sealed-Pavement Area Drive Polycyclic Aromatic Hydrocarbon and Metal Occurrence in Urban Streams

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By Barbara Mahler, Sharon L. Qi, Allen Gellis, Christopher C. Fuller
| ACS Publications
Metals and polycyclic aromatic hydrocarbons (PAHs) are common pollutants in urban streambed sediment, yet their occurrence is highly variable and difficult to predict. To investigate sources of PAHs and metals to streambed sediment, we sampled pavement dust, soil, and streambed sediment in 10 urban watersheds in three regions of the United States and applied a fallout-radionuclide-based sediment-source analysis to quantify the pavement dust contribution to stream sediment (%dust).
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Inclusion of Pesticide Transformation Products Is Key to Estimating Pesticide Exposures and Effects in Small U.S. Streams

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By Barbara Mahler, Lisa H. Nowell, Mark W. Sandstrom, Paul Bradley
| ACS Publications
Download Hi-Res ImageDownload to MS-PowerPointCite This:Environ. Sci. Technol. 2021, XXXX, XXX RETURN TO ARTICLES ASAPContaminants in Aqua...Contaminants in Aquatic and Terrestrial EnvironmentsNEXT Barbara J. Mahler*, Lisa H. Nowell, Mark W. Sandstrom, Paul M. Bradley, Kristin M. Romanok Kristin M. Romanok U.S. Geological Survey, New Jersey Water Science Center, 3450 Princeton Pike, Lawrenceville, New Jersey 08648, United States , Christopher P. Konrad Christopher P.
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Common insecticide disrupts aquatic communities: A mesocosm-to-field ecological risk assessment of fipronil and its degradates in U.S. streams

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By Janet Miller, Travis S. Schmidt, Barbara Mahler, Mark W. Sandstrom
| Science Magazine Verified
Abstract Insecticides in streams are increasingly a global concern, yet information on safe concentrations for aquatic ecosystems is sparse. In a 30-day mesocosm experiment exposing native benthic aquatic invertebrates to the common insecticide fipronil and four degradates, fipronil compounds caused altered emergence and trophic cascades.
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