Human health risks from mercury exposure from broken compact fluorescent lamps (CFLs)

Nance, Patricia; Patterson, Jacqueline; Willis, Alison; Foronda, Natalia M; Dourson, Mike

doi:10.1016/j.yrtph.2011.11.008

Cited by 40 publications

(18 citation statements)

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“…Untreated or not fully treated waste waters containing As and Hg from urban areas, industrial sites and agricultural areas are discharged into aquatic environments Bastami et al, 2015;Zalewska et al, 2015). As and Hg are highly toxic heavy metals, which are transported in the water column, accumulated in sediments, and biomagnified through the food chain, resulting in remarkable ecological risks to benthic organisms, fish and humans (Neff, 1997;Mason et al, 2000;Cotin et al, 2011;Nance et al, 2012). When entering the aquatic environment, only a small part of free metal ions stay dissolved in water because of the combined action of adsorption, hydrolysis and co-precipitation, and the rest of them get deposited in sediments (Gaur et al, 2005).…”

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confidence: 99%

Distributions, sources and ecological risk assessment of arsenic and mercury in the surface sediments of the southwestern coastal Laizhou Bay, Bohai Sea

Zhuang

Gao

2015

Marine Pollution Bulletin

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a b s t r a c tThe spatial distributions of As and Hg in riverine and marine surface sediments of the coastal southwestern Laizhou Bay were obtained, and multiple indices and guidelines were applied to assess their contamination and ecological risks. The As concentrations in riverine sediments were close to those in marine sediments, and on the whole the dominant proportion of As was identified to be from natural sources. The Hg concentrations in riverine sediments were much higher than those in marine sediments, so river transportation was likely the main way of Hg into the southwestern Laizhou Bay. In respect of As, the sediment quality was fine according to the risk assessment methods used; in contrast, Hg presented an extremely contaminated status with a very high ecological risk in some riverine sediments, while most of the marine sediments were relatively much less polluted by Hg and under a lower ecological risk from it.Ó 2015 Elsevier Ltd. All rights reserved.There is worldwide concern about contamination caused by heavy metals such as arsenic (As) and mercury (Hg), because of the environmental persistence, the biogeochemical recycling and the ecological risks of these elements. Untreated or not fully treated waste waters containing As and Hg from urban areas, industrial sites and agricultural areas are discharged into aquatic environments Bastami et al., 2015;Zalewska et al., 2015). As and Hg are highly toxic heavy metals, which are transported in the water column, accumulated in sediments, and biomagnified through the food chain, resulting in remarkable ecological risks to benthic organisms, fish and humans (Neff, 1997;Mason et al., 2000;Cotin et al., 2011;Nance et al., 2012). When entering the aquatic environment, only a small part of free metal ions stay dissolved in water because of the combined action of adsorption, hydrolysis and co-precipitation, and the rest of them get deposited in sediments (Gaur et al., 2005). However, when environmental conditions change, sediments may transform from the main sink of heavy metals to the sources of them for the overlying waters (Gaur et al., 2005;Prica et al., 2008). So the measurements of heavy metals only in the water and in the suspended materials are far from enough due to water discharge fluctuations and low resident time (Varol, 2011). Therefore the concentrations of heavy metals in sediments are often monitored to provide basic information for the environmental risk assessment (Long et al., 1995; SEPA, 2002).The Laizhou Bay is a semi-enclosed shallow coastal water region located in the northwest of Shandong Peninsula with $7000 km 2 in area and a $320 km long coastline, accounting for about 10% of the total area of the Bohai Sea, China. The Bohai Sea is recognized as one of the marine ecosystems in China that face with serious eco-environmental problems, and the Laizhou Bay is one of its three major bays . The topography of the Bay tilts from the southeast to the northwest, with a gradually down trend. Affected by the Yellow River, the Yellow River del...

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Distributions, sources and ecological risk assessment of arsenic and mercury in the surface sediments of the southwestern coastal Laizhou Bay, Bohai Sea

Zhuang

Gao

2015

Marine Pollution Bulletin

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“…It is known that mercury can accumulate in the brain, kidneys, and lungs, causing changes in neurological and renal function. More importantly, it can cause neurological and behavioral disorders in human, and is the most sensitive trace element to the central nervous system [31,32]. Barium levels vary in the range from 0.010 to 0.546 mg/L with a mean value of 0.233 mg/L; 95.7% of the samples' concentrations ranged between the desirable limit (0.1 mg/L) and the maximum permissible limit (1.0 mg/L).…”

Section: Suitability For Drinkingmentioning

confidence: 99%

Suitability assessment of deep groundwater for drinking, irrigation and industrial purposes in Jiaozuo City, Henan Province, north China

Shi

Liu

et al. 2013

Chin. Sci. Bull.

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Groundwater has been a major natural resource for human consumption in north China. It is necessary to appreciate the suitability of deep groundwater for drinking, agricultural irrigation, and industrial uses in this region. To this end, a total of 47 groundwater samples were collected from the study area; by comparing the concentrations of different hydrochemical variables with quality standard values, the variable fuzzy set (VFS) was applied to calculate the groundwater quality index (GQI) for various purposes, respectively. Afterward GQI spatial distribution maps were constructed using a geographic information system (GIS) tool to delineate spatial variations of groundwater quality. In this case study, the GQI spatial distribution maps reveal that the areas covered by "Maximum Permissible" groundwater for varying purposes (drinking, irrigation, and industrial) is 1377.2; 2354.7; and 3854.8 km 2 , respectively. The groundwater in the eastern part of the study area is suitable for drinking, with the southwestern region as the irrigation water source; the entire study area is acceptable for use in industrial, except the western part of Jiaozuo City. Therefore, the GQI spatial distribution maps can provide useful information for non-technical decision makers for better sustainable groundwater resources management.drinking water, quality, irrigation, spatial distribution map, variable fuzzy set Citation:Shi J S, Ma R, Liu J C, et al. Suitability assessment of deep groundwater for drinking, irrigation and industrial purposes in

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“…In the environme nt, mercury can exist in the form of molten metal, mercury bound in natural mineral s, vaporous mercury in the atmosphere (HgO), as well as in the form of ions particularly in water and soil. Most of Hg forms are highly toxic even at low concentrations, particularly for fetuses and children [7,8]. Even though detection of Hg emission in 2013 was about 1000 t lower than in 2005, mercury still seriously threatens life on our planet and as a strong pollutant can exist in the air more than 350 years.…”

Section: Introductionmentioning

confidence: 99%

Isolation, screening and identification of mercury resistant bacteria from mercury contaminated soil

et al. 2016

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Abstract. New bacterial strains resistant to high concentration of mercury were obtained and character iz ed focusing on their potential application in bioremediation. The biological material was isolated from soil contaminated with mercury. The ability to removal of Hg from the liquid medium and the effect of the various pH and mercury concentrations in the environment on bacterial strains growth kinetics were tested. The selected strains were identified by analysis of the 16S ribosome subunit coding sequenc es as Pseudomonas syringae. The analysis of Hg concentration in liquid medium as effect of microb ial metabolism demonstrated that P. syringae is able to remove almost entire metal from mediu m after 120 hours of incubation. Obtained results revealed new ability of the isolated strain P. syrin ga e . Analyzed properties of this soil bacteria species able to reduce concentration of Hg or immob i lize this metal are promising for industrial wastewater treatment and bioremediation of the soils pollu t ed especially by mercury lamps scrapping, measuring instruments, dry batteries, detonators or burning fuels made from crude oil, which may also contain mercury. Selected bacteria strains provide efficient and relatively low-cost bioremediation of the areas and waters contaminated with Hg.

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Human health risks from mercury exposure from broken compact fluorescent lamps (CFLs)

Cited by 40 publications

References 10 publications

Distributions, sources and ecological risk assessment of arsenic and mercury in the surface sediments of the southwestern coastal Laizhou Bay, Bohai Sea

Distributions, sources and ecological risk assessment of arsenic and mercury in the surface sediments of the southwestern coastal Laizhou Bay, Bohai Sea

Suitability assessment of deep groundwater for drinking, irrigation and industrial purposes in Jiaozuo City, Henan Province, north China

Isolation, screening and identification of mercury resistant bacteria from mercury contaminated soil

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