Decrease in osmotically driven water flux and transport through mangrove roots after oil spills in the presence and absence of dispersants

被引：5

作者：

Tansel, Berrin ^{[1
]}

Arreaza, Ariadna ^{[1
]}

Tansel, Derya Z. ^{[2
]}

Lee, Mengshan ^{[3
]}

机构：

[1] Florida Int Univ, Civil & Environm Engn Dept, Miami, FL 33199 USA

[2] Univ Florida, Gainesville, FL USA

[3] Tunghai Univ, Taichung, Taiwan

来源：

MARINE POLLUTION BULLETIN | 2015年 / 98卷 / 1-2期

关键词：

Crude oil; Dispersants; Mangroves; Osmotic pressure; Coastal pollution; Corexit; 9500A; ECOSYSTEMS; PAHS; FATE;

D O I：

10.1016/j.marpolbul.2015.07.016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The objective of this study was to evaluate the effect of crude oil on water transport through mangroves roots in the presence and absence of dispersants. Water transport through the roots were evaluated experimentally using red mangrove root segments exposed to salt water contaminated with Louisiana crude oil for seven days in the presence and absence of Corexit 9500A (dispersant). Experimental observations were interpreted in view of the structural integrity and fouling phenomena observed on the epidermis and endodermis layers of the roots. The effects of oil on the radial water flux through the epidermis and endodermis were analyzed using a dual layer filtration model. Progression of fouling due to accumulation and penetration of the contaminants through the root layers were interpreted in relation to observed mangrove health (long and short term effects) reported in the literature. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：34 / 39

页数：6