Li Yun-Hai, Chen Jian, Chen Jian-Ning, Huang Cai-Bin, Wang Ai-Jun, Li Dong-Yi
Key Laboratory of Submarine Geoscience and Exploring Technology of Ministry of Education, Ocean University of China, Qingdao 266100, China.
Huan Jing Ke Xue. 2010 Jun;31(6):1450-8.
Based on the inductively coupled plasma mass spectroscopy (ICP-MS) data of concentrations of 7 heavy metals (including Cr, Ni, Cu, Zn, Cd, Pb and As) in suspended particles and surface sediments samples collected at 6 and 1 13-hours-mooring stations, respectively, in Quanzhou Bay 4 days after the landing of typhoon "Fung-wong". The average contents of Cr, Ni, Cu, Zn, As, and Cd are 60.4, 50.3, 26.5, 101.7, 3.36, 40.0 and 0.180 microg/g, respectively, in the surface sediments, and are 1.108-7.408, 0.476-3. 394, 0.809-5.046, 3.190-19.337, 0.087-0.595, 2.621-10.073 microg/L and 4.160-50.828 ng/L, respectively, in different stations in the suspended particles. The contents and distribution patterns of 7 heavy metals during a tidal cycle were significantly changed after typhoon "Fung-wong" by contrasting with that in same stations and tidal time at an ordinary situation. The contents of heavy metals, besides Ni, evidently decreased but the distribution patterns were similar with that in an ordinary condition with relatively large grads after typhoon "Fung-wong" in the surface sediments at station Q4. While in the suspended particles, the contents of heavy metals were evidently increased with the distribution patterns varied obviously and differently due to their geographical position after typhoon "Fung-wong". These impacts of typhoon "Fung-wong" to the contents and distribution patterns of heavy metals could be attribute to the "second contamination" and the increased supply of particles materials from continent during the typhoon process. The results of this study provide a reference to accurate assessing and scientific governing the heavy metals' contamination, and provide a directly support to evaluating the integrated impacts of typhoon process on the contamination of heavy metals in the Quanzhou Bay.
基于在台风“凤凰”登陆4天后，分别于泉州湾6个和11个13小时锚定站位采集的悬浮颗粒物和表层沉积物样本中7种重金属（包括铬、镍、铜、锌、镉、铅和砷）浓度的电感耦合等离子体质谱（ICP-MS）数据。表层沉积物中铬、镍、铜、锌、砷、镉和铅的平均含量分别为60.4、50.3、26.5、101.7、3.36、40.0和0.180微克/克，悬浮颗粒物中不同站位的上述重金属含量分别为1.108 - 7.408、0.476 - 3.394、0.809 - 5.046、3.190 - 19.337、0.087 - 0.595、2.621 - 10.073微克/升和4.160 - 50.828纳克/升。与正常情况下相同站位和潮汐时间相比，台风“凤凰”过后，7种重金属在一个潮汐周期内的含量和分布模式发生了显著变化。在Q4站表层沉积物中，除镍外，台风“凤凰”过后重金属含量明显下降，但其分布模式与正常情况相似，梯度相对较大。而在悬浮颗粒物中，台风“凤凰”过后重金属含量明显增加，其分布模式因地理位置不同而明显不同。台风“凤凰”对重金属含量和分布模式的这些影响可能归因于“二次污染”以及台风过程中来自大陆的颗粒物物质供应增加。本研究结果为准确评估和科学治理重金属污染提供了参考，为评估台风过程对泉州湾重金属污染的综合影响提供了直接支持。
