Solidea Bonina

University of Illinois Chicago

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Karl J. Rockne

University of Illinois Chicago

John P. Giesy

University of Saskatchewan

An Li

Zhejiang University

Neil C. Sturchio

University of Delaware

Margaret B. Corcoran

General Dynamics (United States)

Jiehong Guo

Michigan Technological University

Soheil Hosseini

University of Illinois Chicago

Zhuona Li

Inner Mongolia University of Technology

Garry Codling

University of Exeter

Colin Smalley

University of Illinois Chicago

Cooperative Institutions

University of Illinois Chicago

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Research Center for Eco-Environmental Sciences

University of Saskatchewan

Rutgers, The State University of New Jersey

Jianghan University

State Key Laboratory of Environmental Chemistry and Ecotoxicology

University of Minnesota

Indiana University Bloomington

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Temporal and spatial differences in deposition of organic matter and black carbon in Lake Michigan sediments over the period 1850–2010

Journal of Great Lakes Research (2018)

Solidea Bonina Garry Codling Margaret B. Corcoran Jiehong Guo John P. Giesy

Deposition

Sedimentation

10.1016/j.jglr.2018.03.001

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Citations (17)

Carbon Loading to Lake Michigan Sediments

Solidea Bonina

Carbon fibers

Source

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Citations (1)

Visualization and Transport of Quantum Dot Nanomaterials in Porous Media

NATO science for peace and security series. C, Environmental security (2009)

Christophe Darnault Solidea Bonina Burcu Uyuşur Preston T. Snee

Nanomaterials

10.1007/978-1-4020-9491-0_10

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Citations (2)

Organophosphate Esters in Sediment of the Great Lakes

Environmental Science & Technology (2017)

Dandan Cao Jiehong Guo Yawei Wang Zhuona Li Kang Liang

This is the first study on organophosphate ester (OPEs) flame retardants and plasticizers in the sediment of the Great Lakes. Concentrations of 14 OPEs were measured in three sediment cores and 88 Ponar surface grabs collected from Lakes Ontario, Michigan, and Superior of North America. The sum of these OPEs (Σ14OPEs) in Ponar grabs averaged 2.2, 4.7, and 16.6 ng g–1 dw in Lakes Superior, Michigan, and Ontario, respectively. Multiple linear regression analyses demonstrated statistically significant associations between logarithm concentrations of Σ14OPEs as well as selected congeners in surface grab samples and sediment organic carbon content as well as a newly developed urban distance factor. Temporal trends observed in dated sediment cores from Lake Michigan demonstrated that the recent increase in depositional flux to sediment is dominated by chlorinated OPEs, particularly tris(2-chloroisopropyl) phosphate (TCPP), which has a doubling time of about 20 years. Downward diffusion within sediment may have caused vertical fractionation of OPEs over time. Two relatively hydrophilic OPEs including TCPP had much higher concentrations in sediment than estimated based on equilibria between water and sediment organic carbon. Approximately a quarter (17 tonnes) of the estimated total OPE burden (63 tonnes) in Lake Michigan resides in sediment, which may act as a secondary source releasing OPEs to the water column for years to come.

10.1021/acs.est.6b05484

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Citations (177)

Current and historical concentrations of poly and perfluorinated compounds in sediments of the northern Great Lakes – Superior, Huron, and Michigan

Environmental Pollution (2018)

Garry Codling Soheil Hosseini Margaret B. Corcoran Solidea Bonina Tian Lin

10.1016/j.envpol.2018.01.065

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Citations (57)

Occurrence of Atrazine and Related Compounds in Sediments of Upper Great Lakes

Environmental Science & Technology (2016)

Jiehong Guo Zhuona Li Prabha Ranasinghe Solidea Bonina Soheil Hosseini

Surface grab and core sediment samples were collected from Lakes Michigan, Superior, and Huron from 2010 to 2012, and concentrations of herbicides atrazine, simazine, and alachlor, as well as desethylatrazine (DEA), were determined. Concentrations of atrazine in surface grabs ranged from 0.01 to 1.7 ng/g dry weight and are significantly higher in the southern basin of Lake Michigan (latitude <44°) than other parts of the three lakes. The highest concentration of alachlor was found in sediments of Saginaw Bay in Lake Huron. The inventory and net fluxes of these herbicides were found to decline exponentially from the south to the north. The concentration ratio of DEA to atrazine (DEA/ATZ) increased with latitude, suggesting degradation of atrazine to DEA during atmospheric transport. DEA/ATZ also increased with sediment depth in the sediment cores. Diffusion of deposited herbicides from the upper sediment into deeper sediments has occurred, on the basis of the observed patterns of concentrations in dated sediment cores. Concentrations of atrazine in pore water were estimated and were higher than those reported for the bulk waters, suggesting the occurrence of solid-phase deposition of atrazine through the water column and that contaminated sediments act as a source releasing atrazine to the overlying water.

Alachlor

Simazine

Deposition

10.1021/acs.est.6b00706

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Citations (52)

Historical trends of inorganic and organic fluorine in sediments of Lake Michigan

Chemosphere (2014)

Garry Codling Anja Vogt Paul D. Jones Tieyu Wang Pei Wang

Sedimentation

Fluorine

10.1016/j.chemosphere.2014.03.080

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Citations (84)

Spatial and Temporal Trends of Polyhalogenated Carbazoles in Sediments of Upper Great Lakes: Insights into Their Origin

Environmental Science & Technology (2016)

Jiehong Guo Zhuona Li Prabha Ranasinghe Solidea Bonina Soheil Hosseini

Polyhalogenated carbazoles (PHCZs) have been increasingly detected in the environment. Their similarities in chemical structure with legacy pollutants and their potential toxicity have caused increasing concern. In this work, 112 Ponar grab and 28 core sediment samples were collected from Lakes Michigan, Superior, and Huron, and a total of 26 PHCZs were analyzed along with unsubstituted carbazole using gas chromatography coupled with single- or triple-quadrupole mass spectrometry. Our results show that the total accumulation of PHCZs in the sediments of the upper Great Lakes is >3000 tonnes, orders of magnitude greater than those of polychlorinated biphenyls (PCBs) and decabromodiphenyl ether (BDE209). The 27 individual analytes differ in spatial distribution and temporal trend. Our results showed that PHCZs with substitution patterns of −Br2–5, −Cl1–2Br2–4, or having iodine, were more abundant in sediment of Lake Michigan deposited before 1900 than those deposited more recently, implying a natural origin. Some "emerging" PHCZs have been increasingly deposited into the sediment in recent decades, and deserve further environmental monitoring and research. Other PHCZs with low halogen substitution may form from in situ dehalogenation of PHCZs having more halogens. Anthropogenic sources of PHCZs may exist, particularly for the emerging and low molecular mass congeners.

10.1021/acs.est.6b06128

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Citations (84)

Aqueous Geochemical Controls on the Sestonic Microbial Community in Lakes Michigan and Superior

Microorganisms (2023)

Asha Rani Ravi Ranjan Solidea Bonina Mahsa Izadmehr John P. Giesy

Despite being the largest freshwater lake system in the world, relatively little is known about the sestonic microbial community structure in the Laurentian Great Lakes. The goal of this research was to better understand this ecosystem using high-throughput sequencing of microbial communities as a function of water depth at six locations in the westernmost Great Lakes of Superior and Michigan. The water column was characterized by gradients in temperature, dissolved oxygen (DO), pH, and other physicochemical parameters with depth. Mean nitrate concentrations were 32 μmol/L, with only slight variation within and between the lakes, and with depth. Mean available phosphorus was 0.07 μmol/L, resulting in relatively large N:P ratios (97:1) indicative of P limitation. Abundances of the phyla Actinobacteria, Bacteroidetes, Cyanobacteria, Thaumarchaeota, and Verrucomicrobia differed significantly among the Lakes. Candidatus Nitrosopumilus was present in greater abundance in Lake Superior compared to Lake Michigan, suggesting the importance of ammonia-oxidating archaea in water column N cycling in Lake Superior. The Shannon diversity index was negatively correlated with pH, temperature, and salinity, and positively correlated with DO, latitude, and N2 saturation. Results of this study suggest that DO, pH, temperature, and salinity were major drivers shaping the community composition in the Great Lakes.

Thaumarchaeota

10.3390/microorganisms11020504

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Citations (1)