Deposition records of persistent organic pollutants and black carbon in dated sediment cores from China marginal seas: Implications for terrestrial sources and transport processes

Lin, Tian; Han, Yizhen; Wu, Ziqian; Hu, Limin; Guo, Zhigang

doi:10.1016/j.marpolbul.2022.113874

Cited by 3 publications

(2 citation statements)

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“…Models of radionuclide transport and environmental accumulation after deposition are useful for predicting dispersion of other types of pollutants which ultimately accumulate in terrestrial ecosystems due to wet and dry deposition processes, such as pesticides, 8−10 heavy metals, 11−13 and numerous types of organic pollutants. 14 Radionuclides released to the atmosphere may be deposited because of dry and wet deposition on soil and vegetation. 15−18 The first step in wet deposition via rainout is the incorporation of airborne particles and gases into cloud droplets, while the second step is delivery of the contaminated rainwater to the surface.…”

Section: ■ Introductionmentioning

confidence: 99%

“…An enhanced understanding of how wet or dry deposition impacts movement of radionuclides in the environment will provide more accurate human and ecological risk assessments. Models of radionuclide transport and environmental accumulation after deposition are useful for predicting dispersion of other types of pollutants which ultimately accumulate in terrestrial ecosystems due to wet and dry deposition processes, such as pesticides, − heavy metals, − and numerous types of organic pollutants …”

Section: Introductionmentioning

confidence: 99%

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Mode of Atmospheric Deposition in Forests Demonstrates Notable Differences in Initial Radiocesium Behavior

Anderson

Kato

Onda

2022

Environ. Sci. Technol.

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The March 2011 Fukushima Dai-ichi Nuclear Power Plant accident in Japan released 520 PBq of radionuclides compared to a total release of 5300 PBq from the Chornobyl Nuclear Power Plant accident. Both nuclear accidents resulted in deposition of radiocesium throughout the northern hemisphere, and a plethora of studies have been performed regarding radiocesium (137Cs) behavior. However, few studies have assessed the impact of precipitation on 137Cs deposition in forests. Wide-scale environmental measurements from 2011 and 2016 were used to determine the differences in 137Cs deposition because of precipitation following the Fukushima accident. In areas where wet deposition processes were dominant, dense forests generally had lower ambient dose rates and levels of contamination on forest floors than other stands with fewer stems per hectare in 2011. Similar tendencies were not observed in areas that were primarily subject to dry deposition nor were any trends observed in 2016. 137Cs was retained in dense forest canopies for an extended period regardless of the deposition mode. Additionally, it was found that the initial retention of radionuclides by forest canopies is in general higher for areas with predominantly dry deposition. Incorporation of radiocesium into wood tissues was the same for both wet and dry deposition.

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Section: ■ Introductionmentioning

confidence: 99%