ArticleEnvironmental geochemistry and health2015
Mercury concentrations and distribution in soil, water, mine waste leachates, and air in and around mercury mines in the Big Bend region, Texas, USA.
Article in Environmental geochemistry and health, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed.
- Mechanisms underlying mercury detoxification in soil-plant systems after selenium application: a review.Environmental science and pollution research international · 2021Review
- Mercury detoxification by absorption, mercuric ion reductase, and exopolysaccharides: a comprehensive study.Environmental science and pollution research international · 2020Review
- Non-invasive biomonitoring of mercury in birds near thermal power plants: lessons from Maharashtra, India.Environmental monitoring and assessment · 2020Article
- The assessment and remediation of mercury contaminated sites: A review of current approaches.The Science of the total environment · 2020Article
- Genetically encoded FRET-based optical sensor for HgJournal of industrial microbiology & biotechnology · 2019Article
- A Turn-On Fluorescence-Based Fibre Optic Sensor for the Detection of Mercury.Sensors (Basel, Switzerland) · 2019Article
- Total mercury, chromium, nickel and other trace chemical element contents in soils at an old cinnabar mine site (Merník, Slovakia): anthropogenic versus natural sources of soil contamination.Environmental monitoring and assessment · 2019Article
- Identification of Potential Sources of Mercury (Hg) in Farmland Soil Using a Decision Tree Method in China.International journal of environmental research and public health · 2016Article
- Human exposure and risk assessment associated with mercury pollution in the Caqueta River, Colombian Amazon.Environmental science and pollution research international · 2016Article
- Influence of a Municipal Waste Landfill on the Spatial Distribution of Mercury in the Environment.PloS one · 2015Article
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4 authors.
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Abstract
Samples of soil, water, mine waste leachates, soil gas, and air were collected from areas mined for mercury (Hg) and baseline sites in the Big Bend area, Texas, to evaluate potential Hg contamination in the region. Soil samples collected within 300 m of an inactive Hg mine contained elevated Hg concentrations (3.8-11 µg/g), which were considerably higher than Hg in soil collected from baseline sites (0.03-0.05 µg/g) distal (as much as 24 km) from mines. Only three soil samples collected within 300 m of the mine exceeded the probable effect concentration for Hg of 1.06 µg/g, above which harmful effects are likely to be observed in sediment-dwelling organisms. Concentrations of Hg in mine water runoff (7.9-14 ng/L) were generally higher than those found in springs and wells (0.05-3.1 ng/L), baseline streams (1.1-9.7 ng/L), and sources of drinking water (0.63-9.1 ng/L) collected in the Big Bend region. Concentrations of Hg in all water samples collected in this study were considerably below the 2,000 ng/L drinking water Hg guideline and the 770 ng/L guideline recommended by the U.S. Environmental Protection Agency (USEPA) to protect aquatic wildlife from chronic effects of Hg. Concentrations of Hg in water leachates obtained from leaching of mine wastes varied widely from <0.001 to 760 µg of Hg in leachate/g of sample leached, but only one leachate exceeded the USEPA Hg industrial soil screening level of 31 µg/g. Concentrations of Hg in soil gas collected at mined sites (690-82,000 ng/m(3)) were highly elevated compared to soil gas collected from baseline sites (1.2-77 ng/m(3)). However, air collected from mined areas at a height of 2 m above the ground surface contained concentrations of Hg (4.9-64 ng/m(3)) that were considerably lower than Hg in soil gas from the mined areas. Although concentrations of Hg emitted from mine-contaminated soils and mine wastes were elevated, persistent wind in southwest Texas disperses Hg in the air within a few meters of the ground surface.
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