Atmospheric deposition to the Chesapeake Bay watershed—regional and local sources

Mason, Robert P.; Lawson, Nicole; Sullivan, Kristin A.

doi:10.1016/s1352-2310(97)00207-0

Cited by 67 publications

(33 citation statements)

References 23 publications

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“…These differences are probably not entirely due to differences in Hg deposition. Mercury deposition rates vary by perhaps a factor of two to three across Maryland and are highest near urban areas (Mason et al 1997). Mercury concentrations in fish did not follow this pattern.…”

Section: Discussionmentioning

confidence: 90%

“…The mid-Atlantic states (with the exception of New Jersey, which has a statewide ban in fresh waters) currently have few or no advisories despite relatively high levels of Hg deposition. Wet deposition of Hg in the lower Chesapeake Bay watershed ranges from 10 to 25 g Hg/m 2 year, depending on distance from sources (Mason et al 1997). This rate is similar to deposition in south Florida, a region with very high levels of Hg in freshwater fish (Ware et …”

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confidence: 82%

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A Survey of Size-Specific Mercury Concentrations in Game Fish from Maryland Fresh and Estuarine Waters

Gilmour¹,

Riedel²

2000

Archives of Environmental Contamination and Toxicology

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Abstract.A survey of size-specific mercury (Hg) concentrations in game fish from a subset of Maryland fresh and estuarine waters was conducted, in which Hg concentrations in 112 fish from seven freshwater impoundments and three tidal and four estuarine locations in Chesapeake Bay and its tributaries were measured. Striped bass (Morone saxatilis) was the most intensively examined species. Of the fish examined, the largest freshwater sportfish contained the highest Hg concentrations. Striped bass and largemouth bass (Micropterus salmoides) from Chesapeake Bay and its tributaries contained less Hg at the same size than the same species in fresh waters. Large striped bass, chain pickerel (Esox niger), and walleye (Stizostedion vitreum) from Deep Creek Lake and Liberty Reservoir exceeded the FDA action level of 1 mg Hg/kg. Striped bass, largemouth bass, and white crappie (Pomoxis annularis) in other impoundments equaled or exceeded a common advisory level of 0.5 mg Hg/kg. Large differences in size-normalized Hg concentrations among lakes and particularly between fresh and salt waters highlight the large differences in MeHg production and bioaccumulation among ecosystems. This work indicates that a more comprehensive study of Hg in Maryland fish is warranted to protect human and wildlife health.

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Section: Discussionmentioning

confidence: 90%

mentioning

confidence: 82%

A Survey of Size-Specific Mercury Concentrations in Game Fish from Maryland Fresh and Estuarine Waters

Gilmour¹,

Riedel²

2000

Archives of Environmental Contamination and Toxicology

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“…Mercury (Hg) is a pollutant of concern primarily due to the toxicity and bioaccumulation of methyl mercury in aquatic environments, where atmospheric deposition is the major input route (Mason et al 1994(Mason et al , 1997Landis et al 2002;Lai et al 2007). The deposition of mercury at a specific site will depend on the individual concentrations of Hg 0 , Hg(II) and Hg(p) and the presence of other atmospheric constituents involved in the removal processes (Sakata and Marumoto 2002).…”

Section: Introductionmentioning

confidence: 99%

Atmospheric-particulates-bound mercury Hg(p) study at five characteristic sampling sites in Taiwan

Fang

Huang

et al. 2010

Environ Monit Assess

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The main purpose for this study is to observe the seasonal and month variations for particulates-bound mercury Hg(p) in total suspended particulates (TSP) concentration, dry deposition at five characteristic sampling sites during years of 2009-2010 in central Taiwan. The results show that the highest and lowest monthly average particulates-bound mercury Hg(p) concentrations in TSP were occurred in Dec. and Oct. at Gao-mei (wetland), Chang-hua (downtown) and He-mei (residential) sampling site. In addition, the results show that the highest and lowest monthly average particulates-bound mercury Hg(p) dry deposition was occurred in Feb. and Oct. at Quan-xing (industrial) sampling site. This study reflected that the mean highest particulates-bound mercury Hg(p) concentrations in TSP and mean highest particulates-bound mercury Hg(p) dry deposition were occurred at Gao-mei (wetland) and Quan-xing (industrial). However, the mean lowest particulates-bound mercury Hg(p) concentrations in TSP and mean lowest particulates-bound mercury Hg(p) dry deposition were also occurred at Gao-mei (wetland). Regarding seasonal variation, the order of mean-particulates-bound mercury Hg(p) concentrations in TSP in winter and spring were Gao-mei (wetland) > Quan-xing (industrial) > Bei-shi (suburban/coastal) > Chang-hua (downtown) > He-mei (residential). Finally, the order of mean-particulates-bound mercury Hg(p) dry deposition in fall, spring and summer were Quan-xing (industrial) > Bei-shi (suburban/coastal) > Chang-hua (downtown) > He-mei (residential) > Gao-mei (wetland).

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“…Mercury (Hg) was also a pollutant of concern mainly due to the toxicity and bioaccumulation of methyl mercury in aquatic environments, where atmospheric deposition is the major input route (Mason et al, 1994;Mason et al, 1997;Landis et al, 2002;Lai et al, 2007). Moreover, in urban SDSs, Zn, Ni, Cd, Pb, Cu and Cr were related to traffic and industry; coal combustion increases Hg levels.…”

Section: Resultsmentioning

confidence: 99%

The Size Distributions of Ambient Air Metallic Pollutants by Using a Multi-Stage MOUDI Sampler

Fang

Chang

Tsai

et al. 2014

Aerosol Air Qual. Res.

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Atmospheric deposition to the Chesapeake Bay watershed—regional and local sources

Cited by 67 publications

References 23 publications

A Survey of Size-Specific Mercury Concentrations in Game Fish from Maryland Fresh and Estuarine Waters

A Survey of Size-Specific Mercury Concentrations in Game Fish from Maryland Fresh and Estuarine Waters

Atmospheric-particulates-bound mercury Hg(p) study at five characteristic sampling sites in Taiwan

The Size Distributions of Ambient Air Metallic Pollutants by Using a Multi-Stage MOUDI Sampler

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