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DOI	10.1016/j.marpolbul.2019.06.056
	Concentration of 210Po and 210Pb in macroalgae from the northern Gulf
	Uddin S.; Bebhehani M.; Sajid S.; Karam Q.
发表日期	2019
ISSN	0025326X
起始页码	474
结束页码	479
卷号	145
英文摘要	This baseline study highlights the 210Po and 210Pb concentration in seven macroalgae species from the northern Gulf that are frequently washed ashore during the bloom season from February to April. The highest concentrations of 210Po and 210Pb were 2.947 ± 0.032 and 1.057 ± 0.145 Bq kg−1 wwt, respectively, in brown algae Sargassum boveanum, and the lowest in green algae Ulva prolifera with 1.533 ± 0.058 and 0.170 ± 0.069 Bq kg−1 wwt, respectively. A 210Po enrichment was observed in both brown and green algae species, with the 210Po/210Pb ratio being >1 for all the samples. The mean concentration of 210Po in all species was an order of magnitude higher than 210Pb, and the difference in mean concentration is statistically significant (p < 0.001). At the same time, the mean concentration of dissolved 210Po and 210Pb in seawater was 0.28 ± 0.01 and 0.52 ± 0.01Bq m−3 with a 210Po/210Pb ratio of 0.54 ± 0.02 indicating that 210Po was absorbed from water and more concentrated by macroalgae. The measured concentration factor (CF) for 210Po in these macroalgae for the northern Gulf varied between 5 × 103–1 × 104, higher than the IAEA recommended value of 1 × 103 which suggests that a revision of that value may be needed. The field derived CFs for 210Pb vary between 3 × 102–1.8 × 103, comparable to the ICRP recommended value of 2 × 103. © 2019
英文关键词	210Po; Brown algae; Concentration factor; Green algae; Marine food web
语种	英语
scopus关键词	Contamination; Marine pollution; Brown algae; Concentration factors; Green alga; Marine food web; ^210Po; Algae; lead 210; polonium; sea water; lead; polonium; sea water; algal bloom; brown alga; concentration (composition); food web; green alga; lead; macroalga; polonium isotope; aquatic environment; Article; Cladophora; concentration (parameter); concentration ratio; controlled study; dissolution; environmental enrichment; geographic distribution; green alga; isotope labeling; Kuwait; macroalga; nonhuman; radiation dose; Sargassum; Sargassum boveanum; seasonal variation; Ulva; Ulva prolifera; chemistry; environmental monitoring; Indian Ocean; season; seaweed; Chlorophyta; Phaeophyceae; Sargassum; Ulva prolifera; Environmental Monitoring; Indian Ocean; Lead Radioisotopes; Polonium; Sargassum; Seasons; Seawater; Seaweed; Ulva
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149789
作者单位	Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, P.O. Box. 24885, Safat, 13109, Kuwait
推荐引用方式 GB/T 7714	Uddin S.,Bebhehani M.,Sajid S.,et al. Concentration of 210Po and 210Pb in macroalgae from the northern Gulf[J],2019,145.
APA	Uddin S.,Bebhehani M.,Sajid S.,&Karam Q..(2019).Concentration of 210Po and 210Pb in macroalgae from the northern Gulf.Marine Pollution Bulletin,145.
MLA	Uddin S.,et al."Concentration of 210Po and 210Pb in macroalgae from the northern Gulf".Marine Pollution Bulletin 145(2019).