Study on arbor leaf and ring as a potential biological indicator for atmospheric polybrominated diphenyl ethers (PBDEs) distribution at e-wastes recycling sites

Gao, Ming; Wang, G.; Lin, Boji; Tariq, Muhammad; Liu, Kuichen; Zhang, W.

doi:10.1007/s13762-019-02428-x

Cited by 4 publications

(4 citation statements)

References 28 publications

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“…Exemplarily, Zhao et al (2009) found that the wax layer of bay leaves leads to an increased uptake of both particulate-bound and gaseously transported PBDEs. A similar correlation between the age dependent lipid content of leaf and the atmospheric PBDE exposure was also established by Gao et al (2019). Zhu et al (2020) quantified the accumulation of Br 3 -BDEs to Br 10 -BDEs in the wax layer of wheat to 29-93% of the total plant uptake.…”

Section: Plant Specificssupporting

confidence: 55%

“…6), variations of several orders of magnitude in pollutant concentrations, and the simultaneous, but hardly distinguishable, soil-air-plant uptake pathway. Especially the duration of the growth period of the cultivated plants (Gao et al 2019;She et al 2013) and the organic soil content (see Sects. 6, 7) showed considerable impact on PBDE uptake.…”

Section: Additional Parameter Affecting the Log K Ow -Rcfs Correlationmentioning

confidence: 99%

“…Therefore, BDE congener specific transport and plant uptake mechanisms (soil-air-plant vs. soil-soil moisture-root-plant) strongly differ and depend on compound physical parameters (vapor pressure, K OW value, K OA value, Henry coefficient, air to plant distribution coefficient), meteorological parameters (temperature, wind velocity, rainfall, temporal rainfall distribution, deposition kinetics of gaseous BDEs, deposition kinetics of particulate BDEs), long range transport, plant specific characteristics (species, lipid content, carbohydrate content, fiber content, leaf morphology, non-lipid plant parts, bark consistency), and rhizosphere parameters (Klinčić et al 2020;Yogui et al 2011;Zhao et al 2009;Zhu et al 2015). Under aspects of transport, low brominated BDEs (Br 2 -Br 3 ) are mainly and medium brominated BDEs (Br 4 -Br 5 ), depending on the study, are minorly to dominantly distributed as gaseous compounds (BDE-15: 100%; BDE-28: 35-60%), while transmission and deposition of higher brominated congeners (Br 6 -Br 10 ) are obligatorily characterized by adsorption of BDEs on a particulate phase (Dreyer et al 2018;Gao et al 2019;Yogui et al 2011;Zhao et al 2009;Zhu et al 2020). Due to the lower-range transport of the particulate phase, spectrum and concentrations of BDEs in soil and plant samples taken out of densely populated regions are more or less in agreement with the BDE emission spectrum, while the spectrum of detected PBDEs in sparsely populated regions is dominated by low brominated congeners like BDE-47 (51.2%) and BDE-99 (17.8%;Zhao et al 2009).…”

mentioning

confidence: 99%

“…99.5-99.7% of BDE-209 are solely adsorbed on soil matrix or the outer side of the roots. Hence, atmospheric uptake of high brominated BDEs is the dominant pathway (Gao et al 2019).…”

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confidence: 99%

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Plant uptake, translocation and metabolism of PBDEs in plants of food and feed industry: A review

Dobslaw

Woiski

Kiel

et al. 2020

Rev Environ Sci Biotechnol

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Polybrominated diphenyl ethers (PBDEs) have widely been used for decades as flame retardants in a variety of products like plastics for building insulation, upholstered furniture, electrical appliances, vehicles, aircrafts, polyurethane foams, textiles, cable insulation, appliance plugs and various technical plastics in concentrations of 5–30%. However, PBDEs also act as endocrine disrupters, neurotoxins, and negatively affect fertility. In 2001, worldwide consumption of technically relevant penta-BDEs was still estimated at 7500 tons, octa-BDEs at 3790 tons, and deca-BDE at 56,100 tons, but 50–60% of this total volume are discharged into the environment via sewage sludge and its agricultural use alone. In addition, soils are ubiquitously contaminated by the gaseous or particle-bound transport of PBDEs, which today has its main source in highly contaminated electronic waste recycling sites. The emitted PBDEs enter the food chain via uptake by the plants’ roots and shoots. However, uptake and intrinsic transport behaviour strongly depend on crop specifics and various soil parameters. The relevant exposure and transformation pathways, transport-relevant soil and plant characteristics and both root concentration factors (RCF) and transfer factors (TF) as derivable parameters are addressed and quantified in this review. Finally, a simple predictive model for quantification of RCF and TF based on log KOW values and the organic content of the soil/lipid content of the plants is also presented.

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Section: Plant Specificssupporting

confidence: 55%

Section: Additional Parameter Affecting the Log K Ow -Rcfs Correlationmentioning

confidence: 99%

mentioning

confidence: 99%

“…99.5-99.7% of BDE-209 are solely adsorbed on soil matrix or the outer side of the roots. Hence, atmospheric uptake of high brominated BDEs is the dominant pathway (Gao et al 2019).…”

mentioning

confidence: 99%

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