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本工作获得了西太平洋,东印度洋和南大西洋15个站位表层水中的溶解态210Pb和颗粒态210Pb的浓度。溶解态210Pb的浓度范围为:西太平洋0.71-3.80Bq/m3;东印度洋0.42~2.15Bq/m3;南大西洋0.97-1.78Bq/m3。210Pb最大值350Bq/m3是在27°18′N,125°40′E(北太平洋)测得的,而最小值0.42Bq/m3是在远离澳大利亚西岸的25° 18′ S, 111° 38′ E(东印度洋)测得的。在26° 56′ S, 166° 07′ E(南太平洋)观测到颗粒态210Ph浓度的最大值0.35Bq/m3,而在东南印度洋颗粒态210Ph的浓度都小于0.03Bq/m3。表层水中溶解态210Ph含量一般呈现出地理性变化,其随纬度的变化与文献报道的结果很相符。
In this work, the concentrations of dissolved 210Pb and 210Pb in the surface water of 15 stations in the western Pacific, the East Indian Ocean and the South Atlantic were obtained. Concentration of dissolved 210Pb range: the western Pacific 0.71-3.80Bq / m3; the East Indian Ocean 0.42 ~ 2.15Bq / m3; the South Atlantic 0.97-1.78Bq / m3.210Pb maximum 350Bq / m3 Is measured at 27 ° 18’N, 125 ° 40’E (North Pacific) and the minimum of 0.42 Bq / m3 is at 25 ° 18’S, 111 ° 38’E (East Indian Ocean) off the coast of Australia test the result. The maximum concentration of 210Ph was observed at 26 ° 56’S and 166 ° 07’E (South Pacific) and the concentration of 210Ph in the southeastern Indian Ocean was less than 0.03Bq / m3. Surface water 210Ph dissolved state generally shows a geographical change, with the latitude changes consistent with the results reported in the literature.