The use of tree bark as long term biomonitor of 137Cs deposition

Cosma, C.; Iurian, Andra-Rada; Incze, Reka; Kovács, Tibor; Žunić, Zora S.

doi:10.1016/j.jenvrad.2015.12.019

Cited by 16 publications

(7 citation statements)

References 21 publications

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“…These unique behaviour of bark 137 Cs have been reported in Chernobyl studies: The bark of an oak tree species ( Q. petraea ) in Bulgaria was found to be 2–4 times more contaminated with 137 Cs than its leaves and branches 22 years after the Chernobyl accident 16 . In the 40-mm-thick bark of an oak tree species ( Q. robur ) in Romania, the outer 8-mm layer was found to be the most contaminated with 137 Cs 27 years after the accident 17 . Alternatively, the 137 Cs concentration in inner bark was higher than that in outer bark in Scots pines 12 years after the accident 18 .…”

Section: Discussionmentioning

confidence: 99%

Temporal changes in the radiocesium distribution in forests over the five years after the Fukushima Daiichi Nuclear Power Plant accident

Imamura

Komatsu

Ohashi

et al. 2017

Sci Rep

105

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To elucidate the temporal changes in the radiocesium distribution in forests contaminated by the Fukushima Daiichi Nuclear Power Plant accident, we monitored the 137Cs concentration and inventory within forests from 2011 to 2015 across nine plots containing variable tree species and different contamination levels. The 137Cs concentrations in needles and branches decreased exponentially at all coniferous plots, with effective ecological half-lives of 0.45–1.55 yr for needles and 0.83–1.69 yr for branches. By contrast, the 137Cs concentration in deciduous konara oak leaves did not change over the five years. The concentration of 137Cs in oak wood increased by 37–75%, whereas that in Japanese red pine decreased by 63% over the five years. In Japanese cedar and hinoki cypress, the 137Cs concentration in wood showed an increasing trend in half of the plots. The changes in 137Cs in the organic and mineral soil layers were not strongly related to the tree species or contamination level. Our multi-site, multi-species monitoring results revealed that the pattern of temporal changes in radiocesium in the 9 forest plots was similar overall; however, changes in 137Cs in needles/leaves and wood differed among tree species.

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Section: Discussionmentioning

confidence: 99%

Temporal changes in the radiocesium distribution in forests over the five years after the Fukushima Daiichi Nuclear Power Plant accident

Imamura

Komatsu

Ohashi

et al. 2017

Sci Rep

105

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“…In contrast, in recent years various parts of higher plants, lichens, mosses, algae, yeast, and fungal species have been extensively used in biomonitoring activities [21][22][23]. Particularly evergreen higher plants, rather than annuals, are preferred in biomonitoring studies since they could provide more relevant information on short/long-term toxicity levels [24,25]. Some studies on Turkish red pine, an evergreen tree from the Pinaceae family widely distributed throughout the Mediterranean and Aegean regions of Turkey, revealed its biomonitoring ability [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Using the Turkish Red Pine Tree to Monitor Heavy Metal Pollution

Yalçın¹,

Özyiğit²,

Doğan³

et al. 2020

Pol. J. Environ. Stud.

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Turkish red pine is an evergreen tree species widely distributed in the Aegean and Mediterranean regions in Turkey. In the present work, the heavy metal pollution level in Istanbul was investigated using Turkish red pine as a biomonitor. For determining heavy metal concentrations (Cd, Co, Cr, Mn, Ni and Pb) in leaf (unwashed and washed) and bark samples of Turkish red pine and its co-located soil samples we used ICP-OES. Additionally, particulate matter profiles of the research areas were investigated. The samples were collected from 5 different localities: 4 from the Bosporus region (Yildiz Grove, Fethi Pasha Grove, Baltalimani Grove and Mihrabad Grove) and one from Prince Island, also known as Buyukada (as control). According to our measurements, the highest heavy metal accumulations (in mg kg -1 DW) in plant part samples were measured between 1.526±0.012 and 1.639±0.015 for Cd, 0.543±0.007 and 0.600±0.009 for Co, 5.110±0.064 and 5.648±0.072 for Cr, 9.347±0.105 and 10.331±0.111 for Mn, 7.483±0.091 and 8.271±0.096 for Ni, and 13.848±0.159 and 14.950±0.167 for Pb, while the highest heavy metal accumulations (in mg kg -1 DW) in soil samples were measured between 1.813±0.021 and 1.974±0.029 for Cd, 6.326±0.082 and 6.992±0.091 for Co, 22.017±0.284 and 23.685±0.301 for Cr, 268.333±3.153 and 297.361±3.529 for Mn, 15.194±0.176 and 16.792±0.193 for Ni, and 68.778±0.715 and 74.514±0.883 for Pb. The highest outdoor particulate matter levels (in µg/m 3 ) in research areas were also determined as 27.103 for fine (PM 2.5 ) and 67.792 for coarse (PM 10 ) aerosols. The findings revealed that Turkish red pine could accumulate noteworthy amounts of heavy metals.

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“…Due to increased transport and industrial development, Sr, Nd, Pb, and U isotopes are of particular importance in environmental studies, also successfully determined in tree bark [39,53,69]. Also, stable isotope ratio analysis of C, N, and O ( Cs in oak bark, which can be a promising long-term indicator of contamination of this isotope [70]. Apart from isotopes, tree bark may also provide information relating to element speciation and degree of oxidation.…”

Section: Elemental Analysis Of Tree Barkmentioning

confidence: 99%