Mercury Biogeochemistry in the Idrija River, Slovenia, from above the Mine into the Gulf of Trieste

Hines, Mark E.; Horvat, Milena; Faganeli, Jadran; Bonzongo, Jean-Claude J.; Barkay, Tamar; Major, E. B.; Scott, Kevin R.; Bailey, Elizabeth; Warwick, John J.; Lyons, W. Berry

doi:10.1006/enrs.2000.4052

Cited by 197 publications

(93 citation statements)

References 38 publications

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“…Our results are consistent with results published by Hines et al (2000Hines et al ( , 2012 who determined net methylation rates of 0.5 -1 % d -1 for the Gulf. Demethylation activities in sediments of the Gulf and nearby Grado and Marano Lagoons exceed methylation activities up to 6 times, which explains why the calculated methylation activities drop during the experiment.…”

Section: Measured Mesupporting

confidence: 94%

Seasonal dynamics of microbial mercury transformations in sediments and water column of Gulf of Trieste (northern Adriatic Sea)

Koron

Bratkič

Guevara

et al. 2013

E3S Web of Conferences

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Abstract.A series of relatively simple incubation experiments to assess and evaluate microbial mercury (Hg) transformations in water column and sediments were performed monthly or bimonthly in a period from March 2011 to December 2011. Sampling campaigns were performed at station F in the southeastern part of Gulf of Trieste, northern Adriatic Sea. Gulf of Trieste has been for the last 500 year continuously impacted with inflow of Hg, originating from the Idrija Hg mine. The microbial mercury transformations were assessed using a short-lived (t 1/2 =64.12 h) radioisotope 197 Hg. Calculated activities of microbial Hg reduction and methylation were correlated with other environmental factors, such as temperature, nutrient availability, oxygenation, organic matter, substrate (Hg in bioavailable chemical form) availability, structure of microbial community and presence of mer operon. Preliminary results show that in water column a substantial Hg reduction occurs, whereas methylation was not observed. On the other hand, long-term incubation experiments with sediments show that methylation process is active however preliminary results also suggest a significant MeHg degradation.

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Section: Measured Mesupporting

confidence: 94%

Seasonal dynamics of microbial mercury transformations in sediments and water column of Gulf of Trieste (northern Adriatic Sea)

Koron

Bratkič

Guevara

et al. 2013

E3S Web of Conferences

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“…Recent studies in the Idrijca oe Soèa oe the Gulf of Trieste region are mainly directed towards the quantification of Hg fluxes and better understanding of the fate of mercury, its accumulation in the flood plain, and its final input to the marine environment. An assessment of the extent of contamination in the Gulf of Trieste after the closure of the Hg mine was also made , Hines et al 2000 and mass balance calculated (Łirca et al 1999).…”

Section: B-46mentioning

confidence: 99%

Mercury Accumulation inPinus nigra(Austrian Pine)

Hutnik¹,

McClenahen²,

Long³

et al. 2014

Northeastern Naturalist

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“…The biogeochemistry of mercury (Hg) in coastal and estuarial environments has been widely studied because of the high toxicity and biomagnification of this chemical element in the aquatic system (Mason et al, 1996;Horvat et al, 1999;Hines et al, 2000;Conaway et al, 2003;García-Rico et al, 2006). However, the biogeochemical cycles of Hg in different estuaries are variable and complicated due to the diverse input, physical, chemical, and hydrological conditions of Hg.…”

Section: Introductionmentioning

confidence: 99%

Mercury profiles in sediments of the Pearl River Estuary and the surrounding coastal area of South China

Shi

Zhang

et al. 2010

Environmental Pollution

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The spatial and historical changes of Hg in sediment reflect the industrial development and urbanization of the region in south China. a r t i c l e i n f o a b s t r a c tThe spatial and temporal variations of mercury (Hg) in sediments of the Pearl River Estuary (PRE) and the surrounding coastal area (South China Sea) were studied. In surface sediments, the concentrations of Hg ranged from 1.5 to 201 ng/g, with an average of 54.4 ng/g, displaying a decreasing trend with the distance from the estuary to the open sea. This pattern indicates that the anthropogenic emissions from the Pearl River Delta (PRD) region are probably the main sources of Hg in this coastal region. Using the 210 Pb dating technique, the historical changes in the concentrations and influxes of Hg in the last 100 years were also investigated. The variations in Hg influxes in sediment cores obviously correlate with the economic development and urbanization that has occurred the PRD region, especially in the last three decades.

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Mercury Biogeochemistry in the Idrija River, Slovenia, from above the Mine into the Gulf of Trieste

Cited by 197 publications

References 38 publications

Seasonal dynamics of microbial mercury transformations in sediments and water column of Gulf of Trieste (northern Adriatic Sea)

Seasonal dynamics of microbial mercury transformations in sediments and water column of Gulf of Trieste (northern Adriatic Sea)

Mercury Accumulation inPinus nigra(Austrian Pine)

Mercury profiles in sediments of the Pearl River Estuary and the surrounding coastal area of South China

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