Arsenic contamination in New Orleans soil: Temporal changes associated with flooding

Rotkin-Ellman, Miriam; Solomon, Gina; Gonzales, Christopher R.; Agwaramgbo, Lovell; Mielke, Howard W.

doi:10.1016/j.envres.2009.09.004

Cited by 26 publications

(19 citation statements)

References 21 publications

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“…In that study, amounts of Cd and As remained high in relation to the reference samples in each year of study, whereas the amounts of the other metals was similar (2007) or smaller (2008) than to the reference site. The differences in metal abundance during this period and in earlier tsunami sediment studies may have resulted from concentrations of these metals being reduced during subsequent rainy seasons; similar decreasing metal levels have been observed for metals and metalloids after food episodes [24,25]. Another explanation of the decreasing amounts of these elements in the soil is because of their uptake by indigenous plants of the region.…”

Section: Soil Concentration Of Heavy Metals and Metalloidssupporting

confidence: 57%

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Bioaccumulation of metals and metalloids in medicinal plant Ipomoea pes‐caprae from areas impacted by tsunami

Kozak

Kokociński

Niedzielski

et al. 2015

Enviro Toxic and Chemistry

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Tsunami events may have an enormous impact on the functioning of aquatic and terrestrial ecosystems by altering various relationships with biotic components. Concentrations of acid-leachable fractions of heavy metals and metalloids in soils and plant samples from areas affected by the December 2004 tsunami in Thailand were determined. Ipomoea pes-caprae, a common plant species growing along the seashore of this region, and frequently used in folk medicine, was selected to assess the presence of selected elements. Elevated amounts of Cd, Pb, Zn, and As in soil samples, and Pb, Zn, As, Se, Cr, and Ni in plant samples were determined from the tsunami-impacted regions for comparison with reference locations. The flowers of Ipomoea pes-caprae contained the highest amounts of these metals, followed by its leaves, and stems. In addition, its bioaccumulation factor (BAF) supports this capability of high metal uptake by Ipomoea pes-caprae from the areas affected by the tsunami in comparison with a reference site. This uptake was followed by the translocation of these elements to the various plant components. The presence of these toxic metals in Ipomoea pes-caprae growing in contaminated soils should be a concern of those who use this plant for medicinal purposes. Further studies on the content of heavy metals and metalloids in this plant in relation to human health concerns are recommended.

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Section: Soil Concentration Of Heavy Metals and Metalloidssupporting

confidence: 57%

“…Leaves contained elevated amounts of Cd, Pb, Ni, and Cr, in contrast to stems, where higher concentrations of Cu and Zn have been observed . The capability of stems to accumulate these 2 metals has also been reported . In addition, high accumulation of Cu and Cr in stems of Ipomoea aquatica was noted .…”

Section: Discussionmentioning

confidence: 93%

Bioaccumulation of metals and metalloids in medicinal plant Ipomoea pes‐caprae from areas impacted by tsunami

Kozak

Kokociński

Niedzielski

et al. 2015

Enviro Toxic and Chemistry

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“…Possibly lead arsenate, used as an insecticide, accumulated in these soils the p-value is\0.0001, indicating that the metal results for wood are significantly associated with the soil metal results. The Louisiana Department of Environmental Quality Evaluation/Corrective Action Program (RECAP) screening level is 12 mg/kg, as determined on the basis of the upper bound of Louisiana background arsenic concentrations in soil and not on health considerations (Rotkin-Ellman et al 2010). We further evaluated the data by setting up a two-by-two contingency table between XRF As results \90, C90 mg/kg and soil As \12, C12 mg/kg.…”

Section: Resultsmentioning

confidence: 99%

Soil arsenic surveys of New Orleans: localized hazards in children’s play areas

Mielke

Gonzales

Cahn

et al. 2010

Environ Geochem Health

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Arsenic (As) ranks first on the 2005 and 2007 hazardous substances priority lists compiled for the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). This study describes two New Orleans soil As surveys: (1) a survey of composite soil samples from 286 census tracts and (2) a field survey of soil As at 38 play areas associated with the presence of chromated-copper-arsenate (CCA)-treated wood on residential and public properties. The survey of metropolitan New Orleans soils revealed a median As content of 1.5 mg/kg (range <0.2-16.4) and no distinctive differences between the soils of the city core and outlying areas. Play area accessible soils associated with CCA-treated wood (N = 32) had a median As of 57 mg/kg and 78% of the samples were ≥12 mg/kg, the Louisiana soil As standard. The field survey of play areas for CCA-treated wood (N = 132 samples at 38 sites) was conducted with a portable energy-dispersive X-ray fluorescence (XRF) analyzer. Seventy-five of 132 wood samples (56.8%) were deemed CCA-treated wood. Of the 38 play areas surveyed, 14 (36.8%) had CCA-treated wood. A significant association (Fisher's exact p-value = 0.348 × 10(-6)) was found between CCA-treated wood and soil As (N = 75). At one elementary school CCA-treated woodchips (As range 813-1,654 mg As/kg) covered the playgrounds. The situation in New Orleans probably exists in play areas across the nation. These findings support a precautionary program for testing soils and wood for hazardous substances at all play areas intended for children.

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“…27 Additionally, heavy metals such as mercury have the ability to be transported across the flood plain via runoff, leading to the bioaccumulation of the element. 28 Elements such as arsenic have been found in sedi-ment after flooding events, 29 and metals such as cadmium, copper, and lead are persistent in aquatic environments and have the ability to form in-stream toxicity. 24 It is important to classify metals into their two aquatic states, either dissolved or in particulate form.…”

Section: Establishing a Toxics Mobility Inventorymentioning

confidence: 99%

Establishing a Toxics Mobility Inventory for Climate Change and Pollution

et al. 2019

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With a projected increase in extreme weather events through the duration of the 21st century, coastal communities will face a host of challenges. An underexamined component of future threats is the mobilization of pollutants, which can be dispersed by disruptive weather phenomena. This research examines extreme weather threats along multiple U.S. coastal counties. With nearly 40 percent of all Americans living in shoreline and coastal counties, along with the ubiquity of legacy pollutants within these regions, the research is relevant to inhabitants of coastal communities and those beyond. This study introduces the Toxics Mobility Inventory (TMI) in order to inform more programmatic processes for: 1.) coastal planning and management, 2.) the remediation of toxic sites, and 3.) community resiliency. Furthermore, it is an impetus for emergency and disaster response officials to recognize threats and inform response and mitigation procedures.

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Arsenic contamination in New Orleans soil: Temporal changes associated with flooding

Cited by 26 publications

References 21 publications

Bioaccumulation of metals and metalloids in medicinal plant Ipomoea pes‐caprae from areas impacted by tsunami

Bioaccumulation of metals and metalloids in medicinal plant Ipomoea pes‐caprae from areas impacted by tsunami

Soil arsenic surveys of New Orleans: localized hazards in children’s play areas

Establishing a Toxics Mobility Inventory for Climate Change and Pollution

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