Mercury and methylmercury transport through an urban watershed

Mason, Robert P.; Sullivan, Kristin A.

doi:10.1016/s0043-1354(97)00285-6

Cited by 113 publications

(65 citation statements)

References 13 publications

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“…Impervious surfaces have the potential to short-circuit hydrologic pathways in stream basins and thus reduce retention (increase yield) of atmospherically derived Hg (21,27). THg export was greatest in the Oregon urban stream (24-44%), which drains the basin with the greatest density of impervious surfaces (Table 1).…”

Section: Resultsmentioning

confidence: 99%

Mercury Cycling in Stream Ecosystems. 1. Water Column Chemistry and Transport

Brigham

Wentz

Aiken

et al. 2009

Environ. Sci. Technol.

226

267

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We studied total mercury (THg) and methylmercury (MeHg) in eight streams, located in Oregon, Wisconsin, and Florida, that span large ranges in climate, landscape characteristics, atmospheric Hg deposition, and water chemistry. While atmospheric deposition was the source of Hg at each site, basin characteristics appeared to mediate this source by providing controls on methylation and fluvial THg and MeHg transport. Instantaneous concentrations of filtered total mercury (FTHg) and filtered methylmercury (FMeHg) exhibited strong positive correlations with both dissolved organic carbon (DOC) concentrations and streamflow for most streams, whereas mean FTHg and FMeHg concentrations were correlated with wetland density of the basins. For all streams combined, whole water concentrations (sum of filtered and particulate forms) of THg and MeHg correlated strongly with DOC and suspended sediment concentrations in the water column.

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Section: Resultsmentioning

confidence: 99%

Mercury Cycling in Stream Ecosystems. 1. Water Column Chemistry and Transport

Brigham

Wentz

Aiken

et al. 2009

Environ. Sci. Technol.

226

267

View full text Add to dashboard Cite

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“…Mason and Sullivan (1998) studied mercury transport in an urbanized watershed and observed stream mercury yields that were 60 to 80 percent of atmospheric wet-deposition loads, concluding that sources other than regional atmospheric deposition were contributing some of the mercury load to the stream.…”

Section: Atmospheric Mercury Depositionmentioning

confidence: 99%

Mercury in Indiana watersheds: Retrospective for 2001–2006

Risch¹,

Baker²,

Fowler³

et al. 2010

Professional Paper

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“…Mercury has drawn global attention due to its ability to contaminate entire water bodies from remote non-point source trace level inputs that bio-accumulate through the food chain [13]. It is reported that rivers flowing through urban areas have higher Hg concentrations compared to the rural areas [14,15], probably caused by pollution from expressway runoff. Hg in urban runoff mainly comes from direct anthropogenic activities such as mining, or indirectly through dry and wet deposition such as atmospheric deposition, vehicle sources, and the road surface wear.…”

Section: Introductionmentioning

confidence: 99%

Study on Mercury Distribution and Speciation in Urban Road Runoff in Nanjing City, China

Singh

Kumar

et al. 2017

Water

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Abstract:The current study was aimed to investigate the mercury pollution in urban road runoff. A total of 34 rainfall events were monitored on 5 independent road catchments from 2015 to 2016 in Nanjing city, China. Events mean concentrations of mercury and the impact factors of mercury pollution in urban road runoff were also carried out in the current study. Results revealed that the concentration of various mercury species was very high. Total mercury, dissolved mercury and particulate mercury were found to be in the range of 0.173-8.254 µg/L, 0.069-6.823 µg/L, and 0.086-2.485 µg/L, respectively. The order of total mercury concentration among the five catchments was as follows: Longpan road > Xinjiekou > Jiulonghu > Zhujiang road > Maqun area. Results revealed the existence of different dominant species of mercury in different urban areas. Particularly, mercury in urban road runoff mainly existed in particulate form in Maqun area, and the concentrations of inactive mercury (0.250-2.821 µg/L) were far more than that of volatile mercury (0.023-0.215 µg/L) and active mercury (0.026-0.359 µg/L). The order of impact factors of rainfall characteristics on Hg pollution in runoff was dry periods > runoff time > duration of rainfall > storm intensity > rainfall. Analysis based on the first flush effect showed that the first flush phenomenon of mercury was not significant.

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Mercury and methylmercury transport through an urban watershed

Cited by 113 publications

References 13 publications

Mercury Cycling in Stream Ecosystems. 1. Water Column Chemistry and Transport

Mercury Cycling in Stream Ecosystems. 1. Water Column Chemistry and Transport

Mercury in Indiana watersheds: Retrospective for 2001–2006

Study on Mercury Distribution and Speciation in Urban Road Runoff in Nanjing City, China

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