Dendrochemistry of Multiple Releases of Chlorinated Solvents at a Former Industrial Site

Balouet, Jean Christophe; Burken, Joel G.; Karg, Frank; Vroblesky, Don A.; Smith, Kevin T.; Grudd, Håkan; Rindby, A.; Beaujard, Francois; Chalot, Michel

doi:10.1021/es300318v

Cited by 24 publications

(15 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sensitive high-resolution EDXRF technique is increasingly available and appealing from the perspective of understanding tree physiological processes and for forensic dendrochemistry at sites characterized by cation concentrations that exceed ambient levels (Smith et al, 2008;Balouet et al, 2009). In a recent study, EDXRF of chlorine in tree rings was used to identify multiple releases of chlorinated hydrocarbon solvents (Balouet et al, 2012). In this report, patterns of Ca, Zn, and K are described and attributed to internal processes of maturation, allocation, and infection.…”

Section: Introductionmentioning

confidence: 97%

Dendrochemical patterns of calcium, zinc, and potassium related to internal factors detected by energy dispersive X-ray fluorescence (EDXRF)

Smith

Balouet²,

Shortle

et al. 2014

Chemosphere

Self Cite

View full text Add to dashboard Cite

Energy dispersive X-ray fluorescence (EDXRF) provides highly sensitive and precise spatial resolution of cation content in individual annual growth rings in trees. The sensitivity and precision have prompted successful applications to forensic dendrochemistry and the timing of environmental releases of contaminants. These applications have highlighted the need to distinguish dendrochemical effects of internal processes from environmental contamination. Calcium, potassium, and zinc are three marker cations that illustrate the influence of these processes. We found changes in cation chemistry in tree rings potentially due to biomineralization, development of cracks or checks, heartwood/sapwood differentiation, intra-annual processes, and compartmentalization of infection. Distinguishing internal from external processes that affect dendrochemistry will enhance the value of EDXRF for both physiological and forensic investigations.

show abstract

Section: Introductionmentioning

confidence: 97%

Dendrochemical patterns of calcium, zinc, and potassium related to internal factors detected by energy dispersive X-ray fluorescence (EDXRF)

Smith

Balouet²,

Shortle

et al. 2014

Chemosphere

Self Cite

View full text Add to dashboard Cite

show abstract

“…The location of the well was Outdoor Drum Storage containing TCA and/or oil/lubricants/diesel, and were historically stored on asphalt, paved or grassed areas, and the overall CAHs plume area (above DIV) was approximately 3,500 m 2 . Generally, the distribution of CAHs plume was spread from potential source to the surrounding, and the tendency of spread was obviously from the southeast to the northwest, and this fact may be due to its permeability and/or groundwater flows [ 21 , 22 ].…”

Section: Resultsmentioning

confidence: 99%

Characterization of Chlorinated Aliphatic Hydrocarbons and Environmental Variables in a Shallow Groundwater in Shanghai Using Kriging Interpolation and Multifactorial Analysis

Lü

Luo²,

et al. 2015

PLoS ONE

View full text Add to dashboard Cite

CAHs, as a cleaning solvent, widely contaminated shallow groundwater with the development of manufacturing in China's Yangtze River Delta. This study focused on the distribution of CAHs, and correlations between CAHs and environmental variables in a shallow groundwater in Shanghai, using kriging interpolation and multifactorial analysis. The results showed that the overall CAHs plume area (above DIV) was approximately 9,000 m2 and located in the 2–4 m underground, DNAPL was accumulated at an area of approximately 1,400 m2 and located in the 6-8m sandy silt layer on the top of the muddy silty clay. Heatmap of PPC for CAHs and environmental variables showed that the correlation between “Fe2+” and most CAHs such as “1,1,1-TCA”, “1,1-DCA”, “1,1-DCE” and “%TCA” were significantly positive (p<0.001), but “%CA” and/or “%VC” was not, and “Cl-” was significantly positive correlated with “1,1-DCA” and “1,1-DCE” (p<0.001). The PCA demonstrated that the relative proportions of CAHs in groundwater were mostly controlled by the sources and the natural attenuation. In conclusion, the combination of geographical and chemometrics was helpful to establishing an aerial perspective of CAHs and identifying reasons for the accumulation of toxic dechlorination intermediates, and could become a useful tool for characterizing contaminated sites in general.

show abstract

“…Phytoforensic methods can be used not only to detect contaminants in the subsurface at the time of sampling, but also to identify the previous contamination history of the subsurface to reveal historical exposures. Novel analytical techniques and a unique application of dendrochronology and dendrochemistry have been applied to reconstruct potential contaminant exposure from previous contaminant releases using contamination trapped in tree core rings to reveal the history of contamination at a site (Balouet et al 2012). These methods have been validated as forensic tools (Balouet et al 2009), and are relevant to public health because today’s disease incidences are likely to be related to past exposures.…”

Section: Advances In Phytotechnology Research and Applicationmentioning

confidence: 99%

Phytotechnologies – Preventing Exposures, Improving Public Health

Henry

Burken

Maier

et al. 2013

International Journal of Phytoremediation

Self Cite

View full text Add to dashboard Cite

Phytotechnologies have the potential to reduce the amount and/or toxicity of deleterious chemicals/agents, and thereby, prevent human exposures to hazardous substances. As such, phytotechnologies are a tool for primary prevention within the context of public health. Research advances demonstrate that phytotechnologies can be uniquely tailored for effective exposure prevention for a variety of applications. In addition to exposure prevention, phytotechnologists have advanced the use of plants as sensors to delineate environmental contaminants and potential exposures. The applications presented in this paper are at various stages of development and are presented in a framework to reflect how phytotechnologies can help meet basic public health needs for access to clean water, air, and food resources. As plant-based technologies can often be integrated into communities at minimal cost and with low infrastructure needs, their use in improving environmental quality can be applied broadly to minimize potential contaminant exposure. These natural treatment systems concurrently provide ecosystem services of notable value to communities and society. In the future, integration and coordination of phytotechnology activities with public health research will allow technology development that focuses on prevention of environmental exposures. Such an approach will lead to an important role of phytotechnologies in providing sustainable solutions to environmental exposure challenges that improve public health and potentially reduce the burden of disease.

show abstract

Dendrochemistry of Multiple Releases of Chlorinated Solvents at a Former Industrial Site

Cited by 24 publications

References 19 publications

Dendrochemical patterns of calcium, zinc, and potassium related to internal factors detected by energy dispersive X-ray fluorescence (EDXRF)

Dendrochemical patterns of calcium, zinc, and potassium related to internal factors detected by energy dispersive X-ray fluorescence (EDXRF)

Characterization of Chlorinated Aliphatic Hydrocarbons and Environmental Variables in a Shallow Groundwater in Shanghai Using Kriging Interpolation and Multifactorial Analysis

Phytotechnologies – Preventing Exposures, Improving Public Health

Contact Info

Product

Resources

About