Eric is a Biological Science Lab Technician at the Columbia Environmental Research Center.
Science and Products
Filter Total Items: 20
Bioaccumulation kinetics of model pharmaceuticals in the freshwater unionid pondmussel, Sagittunio subrostratus
Bioaccumulation of ionizable pharmaceuticals has been increasingly studied, with most reported aquatic tissue concentrations in field or laboratory experiments being from fish. However, higher levels of antidepressants have been observed in bivalves compared with fish from effluent-dominated and dependent surface waters. Such observations may be important for biodiversity because approximately 70%
Authors
S. Rebekah Burket, Jaylen L. Sims, Rebecca A. Dorman, Nile E. Kemble, Eric Brunson, Jeffery A. Steevens, Bryan W. Brooks
Assessing environmental oil spill based on fluorescence images of water samples and deep learning
Measuring oil concentration in the aquatic environment is essential for determining the potential exposure, risk, or injury for oil spill response and natural resource damage assessment. Conventional analytical chemistry methods require samples to be collected in the field, shipped, and processed in the laboratory, which is also rather time-consuming, laborious, and costly. For rapid field respons
Authors
D. P. Liu, Ming Liu, Guangyu Sun, Zhiqian Zhou, Duolin Wang, Fei He, Jiaxin Li, Jiacheng Xie, Ryan Gettler, Eric Brunson, Jeffery A. Steevens, Dong Xu
Laboratory-derived bioaccumulation kinetic parameters for four per- and polyfluoroalkyl substances in freshwater mussels
Although freshwater mussels are imperiled and identified as key conservation priorities, limited bioaccumulation information is available on these organisms for contaminants of emerging concern. In the present study we investigated the bioaccumulation of per- and polyfluoroalkyl substances (PFAS) in the model freshwater pond mussel Sagittunio subrostratus because mussels provide important ecosyste
Authors
Jeffery A. Steevens, Rebecca A. Consbrock, Eric Brunson, James L. Kunz, Erin Lee Pulster, Rebekah S. Burket, Kevin M. Stroski, Jaylen L. Sims, Matt F. Simcik, Bryan W. Brooks
Pulsed flow-through auto-feeding beaker systems for the laboratory culture of juvenile freshwater mussels
Newly metamorphosed freshwater mussels are small and delicate, so that captive laboratory culture presents challenges for handling; for maintenance of suitable microhabitat, water quality, and food; and for avoidance of competitors and predators. To address these challenges, a new pulsed flow-through auto-feeding beaker system was developed for culturing juvenile mussels. In this system, groups of
Authors
James L. Kunz, Eric Brunson, M. Christopher Barnhart, Elizabeth A. Glidewell, Ning Wang, Christopher G. Ingersoll
Acute and chronic toxicity of aluminum to a unionid mussel (Lampsilis siliquoidea) and an amphipod (Hyalella azteca) in water‐only exposures
The US Environmental Protection Agency (USEPA) is reviewing the protectiveness of the national ambient water quality criteria (WQC) for aluminum (Al) and compiling a toxicity data set to update the WQC. Freshwater mussels are one of the most imperiled groups of animals in the world, but little is known about their sensitivity to Al. The objective of the present study was to evaluate acute 96‐h and
Authors
Ning Wang, Chris D. Ivey, Eric L. Brunson, Danielle M. Cleveland, Christopher G. Ingersoll, William A. Stubblefield, Allison S. Cardwell
Use of lethal short-term chlorine exposures to limit release of non-native freshwater organisms
Fish hatcheries and other types of aquatic facilities are potential sources for the introduction of nonnative species
of fish or aquatic invertebrates into watersheds. Chlorine has been suggested for use to kill organisms that might be
released from the effluent of a facility. While acute LC50s (concentrations lethal to 50% of organisms exposed for
up to 96 h) for chlorine are available for some s
Authors
Christopher G. Ingersoll, Eric L. Brunson, Douglas K. Hardesty, Jamie P. Hughes, Brittany L. King, Catherine T. Phillips
Toxicity of carbon nanotubes to freshwater aquatic invertebrates
Carbon nanotubes (CNTs) are hydrophobic in nature and thus tend to accumulate in sediments if released into aquatic environments. As part of our overall effort to examine the toxicity of carbon-based nanomaterials to sediment-dwelling invertebrates, we have evaluated the toxicity of different types of CNTs in 14-d water-only exposures to an amphipod (Hyalella azteca), a midge (Chironomus dilutus),
Authors
Joseph N. Mwangi, Ning Wang, Christopher G. Ingersoll, Doug K. Hardesty, Eric L. Brunson, Hao Li, Baolin Deng
An evaluation of the influence of substrate on the response of juvenile freshwater mussels (fatmucket, Lampsilis siliquoidea) in acute water exposures to ammonia
Acute 96-h ammonia toxicity to three-month-old juvenile mussels (Lampsilis siliquoidea) was evaluated in four treatments (water-only, water-only with feeding, water and soil, and water and sand) using an exposure unit designed to maintain consistent pH and ammonia concentrations in overlying water and in pore water surrounding the substrates. Median effect concentrations (EC50s) for total ammonia
Authors
J. Miao, M.C. Barnhart, Eric L. Brunson, Douglas K. Hardesty, Christopher G. Ingersoll, Ning Wang
Influence of pH on the acute toxicity of ammonia to juvenile freshwater mussels (fatmucket, Lampsills siliquoidea)
The objective of the present study was to evaluate the influence of pH on the toxicity of ammonia to juvenile freshwater mussels. Acute 96-h ammonia toxicity tests were conducted with 10-d-old juvenile mussels (fatmucket, Lampsilis siliquoidea) at five pH levels ranging from 6.5 to 9.0 in flow-through diluter systems at 20??C. Acute 48-h tests with amphipods (Hyalella azteca) and 96-h tests with o
Authors
N. Wang, R.J. Erickson, C.G. Ingersoll, C.D. Ivey, E.L. Brunson, T. Augspurger, M.C. Barnhart
Acute and chronic toxicity of lead in water and diet to the amphipod Hyalella azteca
We evaluated the influence of waterborne and dietary lead (Pb) exposure on the acute and chronic toxicity of Pb to the amphipod Hyalella azteca. Test solutions were generated by a modified diluter with an extended (24‐h) equilibration period. Acute (96‐h) toxicity of Pb varied with water hardness in the range of 71 to 275 mg/L as CaCO3, despite similar dissolved Pb concentrations. Acute toxicity w
Authors
J.M. Besser, W. G. Brumbaugh, E.L. Brunson, C.G. Ingersoll
Uptake and depuration of nonionic organic contaminants from sediment by the oligochaete, Lumbriculus variegatus
Uptake of sediment-associated contaminants by the oligochaete Lumbriculus variegatus was evaluated after 1, 3, 7, 14, 28, and 56 d of exposure to a field-collected sediment contaminated with DDT and its metabolites, dichlorodiphenyldichloroethane (DDD) and dichlorodiphenyldichloroethylene (DDE), or to a field-collected sediment contaminated with polycyclic aromatic hydrocarbons (PAHs). Depuration
Authors
Christopher G. Ingersoll, Eric L. Brunson, Ning Wang, James F. Dwyer, Gerald T. Ankley, David R. Mount, James Huckins, J. Petty, Peter F. Landrum
Evaluation of toxicity: Whole-sediment versus overlying-water exposures with amphipod Hyalella azteca
A laboratory study was conducted to evaluate the toxicity of whole-sediment versus overlying-water exposures to the amphipod Hyalella azteca using field-collected sediments. Severe toxic effects (5-63% survival) were observed with amphipods exposed for 10 d in direct contact with sediment. In contrast, amphipods exposed only to overlying water in these sediment exposures did not exhibit any toxic
Authors
C.G. Ingersoll, C.D. Ivey, E.L. Brunson, D.K. Hardesty, N.E. Kemble
Science and Products
- Publications
Filter Total Items: 20
Bioaccumulation kinetics of model pharmaceuticals in the freshwater unionid pondmussel, Sagittunio subrostratus
Bioaccumulation of ionizable pharmaceuticals has been increasingly studied, with most reported aquatic tissue concentrations in field or laboratory experiments being from fish. However, higher levels of antidepressants have been observed in bivalves compared with fish from effluent-dominated and dependent surface waters. Such observations may be important for biodiversity because approximately 70%AuthorsS. Rebekah Burket, Jaylen L. Sims, Rebecca A. Dorman, Nile E. Kemble, Eric Brunson, Jeffery A. Steevens, Bryan W. BrooksAssessing environmental oil spill based on fluorescence images of water samples and deep learning
Measuring oil concentration in the aquatic environment is essential for determining the potential exposure, risk, or injury for oil spill response and natural resource damage assessment. Conventional analytical chemistry methods require samples to be collected in the field, shipped, and processed in the laboratory, which is also rather time-consuming, laborious, and costly. For rapid field responsAuthorsD. P. Liu, Ming Liu, Guangyu Sun, Zhiqian Zhou, Duolin Wang, Fei He, Jiaxin Li, Jiacheng Xie, Ryan Gettler, Eric Brunson, Jeffery A. Steevens, Dong XuLaboratory-derived bioaccumulation kinetic parameters for four per- and polyfluoroalkyl substances in freshwater mussels
Although freshwater mussels are imperiled and identified as key conservation priorities, limited bioaccumulation information is available on these organisms for contaminants of emerging concern. In the present study we investigated the bioaccumulation of per- and polyfluoroalkyl substances (PFAS) in the model freshwater pond mussel Sagittunio subrostratus because mussels provide important ecosysteAuthorsJeffery A. Steevens, Rebecca A. Consbrock, Eric Brunson, James L. Kunz, Erin Lee Pulster, Rebekah S. Burket, Kevin M. Stroski, Jaylen L. Sims, Matt F. Simcik, Bryan W. BrooksPulsed flow-through auto-feeding beaker systems for the laboratory culture of juvenile freshwater mussels
Newly metamorphosed freshwater mussels are small and delicate, so that captive laboratory culture presents challenges for handling; for maintenance of suitable microhabitat, water quality, and food; and for avoidance of competitors and predators. To address these challenges, a new pulsed flow-through auto-feeding beaker system was developed for culturing juvenile mussels. In this system, groups ofAuthorsJames L. Kunz, Eric Brunson, M. Christopher Barnhart, Elizabeth A. Glidewell, Ning Wang, Christopher G. IngersollAcute and chronic toxicity of aluminum to a unionid mussel (Lampsilis siliquoidea) and an amphipod (Hyalella azteca) in water‐only exposures
The US Environmental Protection Agency (USEPA) is reviewing the protectiveness of the national ambient water quality criteria (WQC) for aluminum (Al) and compiling a toxicity data set to update the WQC. Freshwater mussels are one of the most imperiled groups of animals in the world, but little is known about their sensitivity to Al. The objective of the present study was to evaluate acute 96‐h andAuthorsNing Wang, Chris D. Ivey, Eric L. Brunson, Danielle M. Cleveland, Christopher G. Ingersoll, William A. Stubblefield, Allison S. CardwellUse of lethal short-term chlorine exposures to limit release of non-native freshwater organisms
Fish hatcheries and other types of aquatic facilities are potential sources for the introduction of nonnative species of fish or aquatic invertebrates into watersheds. Chlorine has been suggested for use to kill organisms that might be released from the effluent of a facility. While acute LC50s (concentrations lethal to 50% of organisms exposed for up to 96 h) for chlorine are available for some sAuthorsChristopher G. Ingersoll, Eric L. Brunson, Douglas K. Hardesty, Jamie P. Hughes, Brittany L. King, Catherine T. PhillipsToxicity of carbon nanotubes to freshwater aquatic invertebrates
Carbon nanotubes (CNTs) are hydrophobic in nature and thus tend to accumulate in sediments if released into aquatic environments. As part of our overall effort to examine the toxicity of carbon-based nanomaterials to sediment-dwelling invertebrates, we have evaluated the toxicity of different types of CNTs in 14-d water-only exposures to an amphipod (Hyalella azteca), a midge (Chironomus dilutus),AuthorsJoseph N. Mwangi, Ning Wang, Christopher G. Ingersoll, Doug K. Hardesty, Eric L. Brunson, Hao Li, Baolin DengAn evaluation of the influence of substrate on the response of juvenile freshwater mussels (fatmucket, Lampsilis siliquoidea) in acute water exposures to ammonia
Acute 96-h ammonia toxicity to three-month-old juvenile mussels (Lampsilis siliquoidea) was evaluated in four treatments (water-only, water-only with feeding, water and soil, and water and sand) using an exposure unit designed to maintain consistent pH and ammonia concentrations in overlying water and in pore water surrounding the substrates. Median effect concentrations (EC50s) for total ammoniaAuthorsJ. Miao, M.C. Barnhart, Eric L. Brunson, Douglas K. Hardesty, Christopher G. Ingersoll, Ning WangInfluence of pH on the acute toxicity of ammonia to juvenile freshwater mussels (fatmucket, Lampsills siliquoidea)
The objective of the present study was to evaluate the influence of pH on the toxicity of ammonia to juvenile freshwater mussels. Acute 96-h ammonia toxicity tests were conducted with 10-d-old juvenile mussels (fatmucket, Lampsilis siliquoidea) at five pH levels ranging from 6.5 to 9.0 in flow-through diluter systems at 20??C. Acute 48-h tests with amphipods (Hyalella azteca) and 96-h tests with oAuthorsN. Wang, R.J. Erickson, C.G. Ingersoll, C.D. Ivey, E.L. Brunson, T. Augspurger, M.C. BarnhartAcute and chronic toxicity of lead in water and diet to the amphipod Hyalella azteca
We evaluated the influence of waterborne and dietary lead (Pb) exposure on the acute and chronic toxicity of Pb to the amphipod Hyalella azteca. Test solutions were generated by a modified diluter with an extended (24‐h) equilibration period. Acute (96‐h) toxicity of Pb varied with water hardness in the range of 71 to 275 mg/L as CaCO3, despite similar dissolved Pb concentrations. Acute toxicity wAuthorsJ.M. Besser, W. G. Brumbaugh, E.L. Brunson, C.G. IngersollUptake and depuration of nonionic organic contaminants from sediment by the oligochaete, Lumbriculus variegatus
Uptake of sediment-associated contaminants by the oligochaete Lumbriculus variegatus was evaluated after 1, 3, 7, 14, 28, and 56 d of exposure to a field-collected sediment contaminated with DDT and its metabolites, dichlorodiphenyldichloroethane (DDD) and dichlorodiphenyldichloroethylene (DDE), or to a field-collected sediment contaminated with polycyclic aromatic hydrocarbons (PAHs). DepurationAuthorsChristopher G. Ingersoll, Eric L. Brunson, Ning Wang, James F. Dwyer, Gerald T. Ankley, David R. Mount, James Huckins, J. Petty, Peter F. LandrumEvaluation of toxicity: Whole-sediment versus overlying-water exposures with amphipod Hyalella azteca
A laboratory study was conducted to evaluate the toxicity of whole-sediment versus overlying-water exposures to the amphipod Hyalella azteca using field-collected sediments. Severe toxic effects (5-63% survival) were observed with amphipods exposed for 10 d in direct contact with sediment. In contrast, amphipods exposed only to overlying water in these sediment exposures did not exhibit any toxicAuthorsC.G. Ingersoll, C.D. Ivey, E.L. Brunson, D.K. Hardesty, N.E. Kemble