Contamination of tsunami sediments in a coastal zone inundated by the 26 December 2004 tsunami in Thailand
Contamination of tsunami sediments in a coastal zone inundated by the 26 December 2004 tsunami in Thailand
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2004 年 12 月 26 日泰国海啸淹没的沿海地区海啸沉积物受到污染
DOI：
10.1007/s00254-005-0094-z
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
J. Siepak
中科院分区：
文献类型：
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作者：
W. Szczuciński;P. Niedzielski;G. Rachlewicz;T. Sobczyński;A. Zioła;A. Kowalski;S. Lorenc;J. Siepak
在2004年12月26日海啸发生后50天内对泰国沿海地区的海啸沉积物进行了采样。当时海啸淹没区的地表水和地下水都显示出明显的含盐量。海啸沉积物主要由细砂至中砂组成，水溶性部分盐（Na+、K+、Ca+2、Mg+2、Cl和SO4−2）含量显著高于对照样品，生物有效部分Cd、Cu、Zn、Pb含量显著高于对照样品，交换部分As含量显著高于对照样品。污染物的来源是海洋，以及岩石层和人为的。盐类与Pb、Zn、Cu的相关性以及与平均晶粒尺寸（孔径和孔隙度）的相关性均较高。该地区地形平缓，存在污染物向地下水和食物链迁移的风险，存在严重的环境危害。
Tsunami sediments deposited in a coastal zone of Thailand by the 26 December 2004 tsunami wave were sampled within 50 days after the event. All surface and ground waters in tsunami- inundated zone revealed significant salinity at that time. The tsunami sediments, composed mainly of fine to medium sand, contain significantly elevated contents of salts (Na+, K+, Ca+2, Mg+2, Cl and SO4−2) in water-soluble fraction, and of Cd, Cu, Zn, Pb in the bioavailable fraction and As in the exchangeable fraction in relation to the reference sample. The origin of contaminants is marine, as well as litho- and anthropogenic. The salts and Pb, Zn and Cu reveal high correlation to each other and to the mean grain size (pore size and porosity). Serious environmental hazard exists in that region because, due to gentle morphology, there is a risk of migration of the contaminants into ground waters and food chain.