Sinking of particulates 234Thxs, 7Be and 210Pbxs in the Changjiang estuary, China

Dekun Huang; Jinzhou Du; Yunfeng Wu; Daoji Li; Jing Zhang

doi:10.1007/s00343-010-9036-z

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Sinking of particulates 234Thxs, 7Be and 210Pbxs in the Changjiang estuary, China

OriginalPaper | Updated：2023-05-16

- Sinking of particulates 234Thxs, 7Be and 210Pbxs in the Changjiang estuary, China
- Sinking of particulates 234Thxs, 7Be and 210Pbxs in the Changjiang estuary, China
- 海洋湖沼学报（英文） 2010年28卷第6期页码：1152-1159
- Affiliations：
  
  State Key Laboratory of Estuarine and Coastal Research East China Normal University
- Author bio：
- Funds：
  
  Supported by the National Natural Science Foundation of China (No. 40976054), the State Key Laboratory of Estuarine and Coastal Research of China (No. 2008KYYW08), and the National Basic Research Program of China (973 Program) (Nos. 2002CB412405 and 2006CB400601)
- DOI：10.1007/s00343-010-9036-z
  中图分类号：
- 网络首发：2010-11-10，
  
  纸质出版：2010
- Accepted：
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Sinking of particulates 234Thxs, 7Be and 210Pbxs in the Changjiang estuary, China[J]. 海洋湖沼学报（英文）, 2010,28(6):1152-1159.

Huang, D., Du, J., Wu, Y. et al. Sinking of particulates 234Thxs, 7Be and 210Pbxs in the Changjiang estuary, China., Chin. J. Ocean. Limnol. 28, 1152–1159 (2010). https://doi.org/10.1007/s00343-010-9036-z
Sinking of particulates 234Thxs, 7Be and 210Pbxs in the Changjiang estuary, China[J]. 海洋湖沼学报（英文）, 2010,28(6):1152-1159. DOI： 10.1007/s00343-010-9036-z.

Huang, D., Du, J., Wu, Y. et al. Sinking of particulates 234Thxs, 7Be and 210Pbxs in the Changjiang estuary, China., Chin. J. Ocean. Limnol. 28, 1152–1159 (2010). https://doi.org/10.1007/s00343-010-9036-z DOI：

摘要

Abstract

The time scale of transport and reaction processes in the ocean can be evaluated using natural radionuclides of different half-lives. In the present study

we evaluated the residence times of particulate reactive radionuclides 7Be

210Pbxs and 234Th in the Changjiang (Yangtze River) estuary

which is a high turbidity estuary

in June

2006. The residence times of particulate 7Be

234Thxs and 210Pbxs in the Changjiang estuary were calculated to be 0.7–20.4

0.18–4.1 and 0.6–89.8 d

respectively. The obtained residence times of those nuclides are comparable with those of other estuaries and bays. For 234Thxs and 7Be

the residence times decreased with increasing concentrations of suspended particulate matter (SPM); however

those of 210Pbxs increased. Moreover

scavenging residence times of 234Th and 7Be increased from coast to offshore

while those of 210Pbxs decreased.

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references

Aller R C, Cochran J K. 1976. 234Th/238U disequilibrium in nearshore sediment: particle reworking and digenetic timescales. Earth and Planetary Science Letters, 29: 37–50.

Baskaran M, Santschi P H. 1993a. The role of particles and colloids in the transport of radionuclides in coastal environments of Texas. Marine Chemistry, 43: 95–114.

Baskaran M, Coleman C H, Santschi P H. 1993b, Atmospheric depositional fluxes of 7Be and 210Pb at Galveston and College Station, Texas. Journal of Geophysical Research, 98:20 555–20 571.

Baskaran M, Swarzenski P W. 2007. Seasonal variations on the residence times and partitioning of short-lived radionuclides (234Th, 7Be and 210Pb) and depositional fluxes of 7Be and 210Pb in Tampa Bay, Florida. Marine Chemistry, 104: 27–42.

Baskaran M, Santschi P H, Guo L, Bianchi T S, Lambert C. 1996. 234Th-238U disequilibria in the Gulf of Mexico: the importance of organic matter and particle concentration. Continental Shelf Research, 16: 353–380.

Baskaran M, Ravichandran M, Bianchi T S. 1997. Cycling of 7Be and 210Pb in a high DOC, shallow, turbid estuary of southeast Texas. Estuarine, Coastal and Shelf Science, 45: 165–176.

Bronson F L. 2003. Validation of the accuracy of the LabSOCS software for mathematical efficiency calibration of Ge detectors for typical laboratory samples. Journal of Radioanalytical and Nuclear Chemistry, 255(1): 137–141.

Chen M, Huang Y P, Qiu Y. 2001. Tidal effect on 234Th/238U disequilibria in Xiamen Bay. Oceanologia et Limnologia Sinica, 32(6): 679–689. (in Chinese)

Dai Z, Du J, Li J, Li W, Chen J. 2008. Runoff characteristics of the Changjiang River during 2006: Effect of extreme drought and the impounding of the Three Gorges Dam. Geophysical Research Letters, 35: L07406, doi:10.1029/2008GL033456.

Dibb J E, Rice D L. 1989. The geochemistry of beryllium-7 in Chesapeake Bay. Estuarine and Coastal Shelf Science, 28: 379–394.

Du J, Zhang J, Zhang J, Wu Y. 2008. Deposition patterns of atmospheric 7Be and 210Pb in coast of East China Sea, Shanghai, China. Atmospheric Environment, 42: 5 101–5 109.

Feng H, Cochran J K, Hirschberg D J, Wilson R E. 1998. Small-scale spatial variations of natural radionuclide and trace metal distributions in sediments from the Hudson River estuary. Estuaries, 21: 263–280.

Feng H, Cochran J K, Hirschberg D J. 1999. 234Th and 7Be as traces for the transport and dynamics of suspended particles in a partially mixed estuary. Geochimica et Cosmochimica Acta, 63: 2 487–2 505.

Hirschberg D J, Chin P, Feng H, Cochran J K. 1996. Dynamics of sediment and contaminant transport in the Hudson River estuary. Evidence from sediment distribution of naturally occurring radionuclides. Estuaries, 19: 175–193.

Ivanovich M, Harmon R S. 1992. Uranium-series Disequilibrium: Application to Earth, Marine and Environmental Sciences, 2nd ed. Clarendon Press, Oxford, p. 731–778.

Jweda J, Baskaran M, van Hees E, Schweitzer L. 2008. Short-lived radionuclides (Be-7 and Pb-210) as tracers of particle dynamics in a river system in southeast Michigan, Limnology and Oceanography, 53(5): 1 934–1 944.

Kaufman A, Li Y H, Turekian K K. 1981. The removal rates of 234Th and 228Th from waters of the New York Bight. Earth and Planetary Science Letters, 54(3): 385–392.

Liu J, Li A, Xu K, Velozzi D M, Yang Z, Milliman J D, DeMaster D J. 2006. Sedimentary features of the Yangtze River-derived along-shelf clinoform deposit in the East China Sea. Continental Shelf Research, 26: 2 141–2 156

Liu J, Xu K, Li A, Milliman J D, Velozzi D M, Xiao S B, Yang Z S. 2007. Flux and fate of Yangtze River sediment delivered to the East China Sea. Geomorphology, 85: 208–224.

McKee B A, DeMaster D J, Nittrouer C A. 1984. The use of Th-234/U-238 disequilibrium to examine the fate of particle-reactive species in the Yangtze continental shelf. Earth and Planetary Science Letters, 68: 431–442.

McKee B A, DeMaster D J, Nittrouer C A. 1986. Temporal variability in the partitioning of thorium between dissolved and particulate phases of the Amazon shelf: implications for the scavenging of particle-reactive species. Continental Shelf Research, 6: 87–106.

Olsen C R, Larsen I L, Lowry P D, Cutshall N H, Nichols M M. 1986. Geochemistry and deposition of 7Be in river-estuarine and coastal waters. Journal Geophysical Research, 91(C1): 896–908.

Preiss N, Meliees M A, Pourchet M A. 1996. Compilation of data on lead-210 concentration in surface air and fluxes at the air-surface and water-sediment interfaces. Journal of Geophysical Research, 101: 28 847–28 862.

Santschi P H, Li Y H, Bell J. 1979. Natural radionuclides in the water of Narragansett Bay. Earth and Planetary Science Letters, 45: 201–213.

Shen H, Pan D. 2001. Turbidity Maximum in the Changjiang Estuary, China Ocean Press, Beijing, China. Chapter 3. (in Chinese)

Tan X, Wang X, Gechies H, Rabung A. 2008. Sorption of Eu(III) on humic acid or fulvic acid bound to hydrous alumina studied by SEM-EDS, XPS, TRLFS, and batch techniques. Environmental Science & Technology, 42: 6 532–6 537.

Turner A, Millward G E. 2002. Suspended particles: their role in estuarine biogeochemical cycles. Estuarine, Coastal and Shelf Science, 55: 165–176.

Wong C M, Williams C E, Pittock J, Collier U, Schelle P. 2007. World’s Top 10 Rivers at Risk. WWF International. Gland, Switzerland.

Wu Y, Zhang J, Li D, Wei H, Lu R. 2003. Isotope variability of particulate organic matter at the PN Section in the East China Sea. Biogeochemistry, 65: 31–49.

Xu D, Chen C, Tan X, Hu J, Wang X. 2007. Sorption of Th(IV) on Na-rectorite: Effect of HA, ionic strength, foreign ions and temperature. Applied Geochemistry, 22: 2 892–2 906.

Yang S, Zhang J, Zhu J, Smith J P, Dai S, Gao A, Li P. 2005. Impact of dams on Yangtze River sediment supply to the sea and delta inter-tidal wetland response. Journal of Geophysical Research, 110: F03006, doi: 0.1029/2004JF000271.

Yang S, Zhang J, Xu X. 2007. Influence of the Three Gorges Dam on downstream delivery of sediment and its environmental implications, Yangtze River, Geophysical Research Letters, 34: L10401, doi:10.1029/2007GL029472.

Zhang J. 2002. Biogeochemistry of Chinese estuarine and coastal waters: Nutrients, trace metals and biomarkers. Regional Environmental Change, 3: 65–76.

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