南黄海和中国东海中挥发性卤代烃的分布与海气通量

杨桂朋; 李莉; 陆小兰; 张亮

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YANG Guipeng,LI Li,LU Xiaolan,ZHANG Liang.Distributions and sea-to-air fluxes of volatile halocarbons in the southern Yellow Sea and the East China Sea[J].Acta Oceanologica Sinica,2015,34(2):9-20

南黄海和中国东海中挥发性卤代烃的分布与海气通量

Distributions and sea-to-air fluxes of volatile halocarbons in the southern Yellow Sea and the East China Sea

投稿时间：2013-10-10 修订日期：2014-02-15

DOI：10.1007/s13131-015-0622-y

中文关键词: 挥发性卤代烃分布南黄海中国东海海气通量

英文关键词:volatile halocarbons distribution southern Yellow Sea East China Sea sea-to-air flux

基金项目:Foundation item: The National Natural Science Foundation of China under contract Nos 41320104008 and 40776039; the National Na-tural Science Foundation for Creative Research Groups under contract No. 41221004; the Changjiang Scholars Program, Ministry of Education of China; the "Taishan Scholar" Special Research Fund of Shandong Province, China.

作者	单位	E-mail
杨桂朋	中国海洋大学海洋化学理论与工程技术教育部重点实验室, 青岛 266100	gpyang@ouc.edu.cn
李莉	中国海洋大学海洋化学理论与工程技术教育部重点实验室, 青岛 266100
陆小兰	中国海洋大学海洋化学理论与工程技术教育部重点实验室, 青岛 266100
张亮	中国海洋大学海洋化学理论与工程技术教育部重点实验室, 青岛 266100

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中文摘要:

于2007年11月对中国南黄海和东海海域中5种挥发性卤代烃(VHCs)的分布和海-气通量进行了研究.研究结果表明,表层海水中1,1,1-三氯乙烷(C₂H₃Cl₃)、1,1-二氯乙烯(C₂H₂Cl₂)、三氯乙烯(C₂HCl₃)、三氯甲烷(CHCl₃)和四氯化碳(CCl₄)的浓度范围分别为0.31-4.81、2.75-21.3、1.21-17.1、5.02-233和0.045-4.47pmol/L,平均浓度分别为1.89、12.20、6.93、60.90和0.33 pmol/L.VHCs(C₂HCl₃除外)的浓度水平分布总体上呈现近岸高于外海、近岸偏高的分布趋势.C₂H₃Cl₃、C₂H₂Cl₂和CCl₄的水平分布主要受人为活动的影响,CHCl₃和C₂HCl₃的水平分布受生物活动和人为活动的影响.C₂H₃Cl₃、C₂HCl₃、CHCl₃和CCl₄的海-气通量分别为-56.00- -5.68、-7.31-123.42、148.00-1309.31和-83.32- -1.53 nmol/m²·d,平均值分别为-6.77、17.14、183.38和 -21.27 nmol/(m²·d).计算结果表明秋季南黄海和东海是C₂H₃Cl₃和CCl₄的汇,但是该研究区域是C₂HCl₃和CHCl₃的源.

英文摘要:

Distributions and sea-to-air fluxes of five kinds of volatile halocarbons (VHCs) were studied in the southern Yellow Sea (SYS) and the East China Sea (ECS) in November 2007. The results showed that the concentrations of 1,1,1-trichloroethane (C₂H₃Cl₃), 1,1-dichloroethene (C₂H₂Cl₂), 1,1,2-trichloroethene (C₂HCl₃), trichloromethane (CHCl₃) and tetrachloromethane (CCl₄) in the surface water were 0.31-4.81, 2.75-21.3, 1.21-17.1, 5.02-233 and 0.045-4.47 pmol/L, respectively, with the average values of 1.89, 12.20, 6.93, 60.90 and 0.33 pmol/L. On the whole, the horizontal distributions of C₂H₃Cl₃, C₂H₂Cl₂ and CCl₄ were affected mainly by anthropogenic activities, while C₂HCl₃ and CHCl₃ were influenced by biological factors as well as anthropogenic activities. In the study area, the concentrations of VHCs (except C₂HCl₃) exhibited a decreasing trend from inshore to offshore sites, with the higher values occurring in the coastal waters. The sea-to-air fluxes of C₂H₃Cl₃, C₂HCl₃, CHCl₃ and CCl₄ were calculated to be -56.00-(-5.68), -7.31-123.42, 148.00-1 309.31 and -83.32-(-1.53) nmol/(m²·d), respectively, with the average values of -6.77, 17.14, 183.38 and -21.27 nmol/(m²·d). Our data showed that the SYS and ECS in autumn was a sink for C₂H₃Cl₃ and CCl₄, while it was a source for C₂HCl₃ and CHCl₃ in the atmosphere.

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