Deposition and evaporation of polychlorobiphenyl congeners to and from Siskiwit Lake, Isle Royale, Lake Superior

Swackhamer, Deborah L.; McVeety, B.D.; Hites, Ronald A.

doi:10.1021/es00171a008

Cited by 148 publications

(106 citation statements)

References 22 publications

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“…Overall, the PFA concentrations detected in Lake Siskiwit, approach the maximum concentrations detected in Lake Superior, while the relative proportions are also similar. Previously, the importance of atmospheric inputs to this lake was noted for PCBs and chlorinated pesticides (Swackhammer et al, 1988) and for PAHs .…”

Section: Resultsmentioning

confidence: 97%

Perfluoroalkyl acids in Lake Superior water: Trends and sources

Scott¹,

Silva²,

Spencer³

et al. 2010

Journal of Great Lakes Research

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Section: Resultsmentioning

confidence: 97%

Perfluoroalkyl acids in Lake Superior water: Trends and sources

Scott¹,

Silva²,

Spencer³

et al. 2010

Journal of Great Lakes Research

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“…In this way, chances of false positives, which may otherwise escape GC-only methods, are lessened. We have often used this approach in our laboratory (59)(60)(61).…”

Section: B Polychlorinated Biphenylsmentioning

confidence: 99%

Electron capture mass spectrometry of organic environmental contaminants

Ong

Hites

1994

Mass Spectrometry Reviews

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“…Several studies have shown that the Great Lakes may act as both sources and sinks of semivolatile organic compounds (SOCs) depending on the season and location (2-4, [6][7][8][9][10]. These compounds, which include chlorinated pesticides, polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) exist in the atmosphere in both the vapor phase and adsorbed to suspended particulate matter (1,11,12).…”

Section: Introductionmentioning

confidence: 99%

Dry Deposition of Semivolatile Organic Compounds to Lake Michigan

Pirrone¹,

Keeler²,

Holsen³

1995

Environ. Sci. Technol.

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The Lake Michigan Urban Air Toxics Study (LMUATS) was carried out from July 8 to August 9, 1991, in the southern Lake Michigan basin. The investigation was the first aimed at assessing the impact of the Chicago/Gary urban plume on the deposition of hazardous air pollutants (HAPs) to Lake Michigan. The concentrations of a large number of semivolatile organic compounds (SOCs) were measured at four locations (Kankakee, IL; Chicago, IL; over Lake Michigan onboard the R/V Laurentian; and South Haven, MI). These sites were chosen as they are often linked by air mass transport with air masses reaching South Haven, after passing through Chicago, often having an over-water path to the downwind site. The University of Michigan R/V lawentianwas also deployed off-shore of Chicago to measure the concentrations of HAPs as they were transported out over the water. A hybrid-receptor deposition (HRD) modeling approach, which utilized measured atmospheric concentrations at a receptor site together with observed meteorological data in a lagrangian dispersion modeling framework, was used to estimate both gas exchange across the air-water interface and particle dry deposition of SOCs to Lake Michigan. The atmospheric concentrations of selected pesticides, PCBs, and PAHs measured during the LMUATS were used as input to the HRD model. The comparison between the measured and calculated ambient concentrations gives reasonable results with measured/calculated concentration ratios in the range of 0.3-1.9 for pesticides, 0.9-2.6 for PCBs, and 0.5-3.8 for PAHs. A comparison of deposition fluxes obtained in this study with those found in literature reveals large differences for some compounds, especially for those that are primarily in the particle phase. This finding suggests that assuming constant values of critical parameters controlling the transfer processes of gaseous and particulate SOCs from the atmosphere to the water surface may result in estimates with large uncertainties. MethodsSample Collection. Ambient air samples were collected in Chicago, IL, on the roof of Farr Hall, a 4-story building on the campus of Illinois Institute of Technology (IIT); in South Haven, MI, a rural location 3 km from the eastern side of Lake Michigan; and onboard the RIV Laurentian located

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Deposition and evaporation of polychlorobiphenyl congeners to and from Siskiwit Lake, Isle Royale, Lake Superior

Cited by 148 publications

References 22 publications

Perfluoroalkyl acids in Lake Superior water: Trends and sources

Perfluoroalkyl acids in Lake Superior water: Trends and sources

Electron capture mass spectrometry of organic environmental contaminants

Dry Deposition of Semivolatile Organic Compounds to Lake Michigan

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