FLUORANTHENE K-DOC IN SEDIMENT PORE WATERS

被引：14

作者：

BRANNON, JM ^{[1
]}

PENNINGTON, JC ^{[1
]}

DAVIS, WM ^{[1
]}

HAYES, C ^{[1
]}

机构：

[1] ASCI CORP, MCLEAN, VA 22101 USA

来源：

CHEMOSPHERE | 1995年 / 30卷 / 03期

关键词：

D O I：

10.1016/0045-6535(94)00421-P

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

When calculating concentrations of truly dissolved hydrophobic organic contaminants (HOCs) in sediment pore water, a common assumption is that the partition coefficient between pore water and colloidal plus dissolved organic carbon (K-DOC) equals the partition coefficient between pore water and sediment total organic carbon (K-DOC). This study examined the K-DOC of fluoranthene in pore water from 11 sediments. Truly dissolved fluoranthene was separated from DOG-associated fluoranthene by partitioning on C-18 Sep Paks. Measured values of K-DOC were not constant over the 11 sediments examined, and were over or underestimated by assuming that K-DOC = K-oc. Current models used to predict the fate of HOCs may require modification to account for the observed difference between K-DOC and K-OC.

引用

页码：419 / 428

页数：10

共 25 条

[1]

BITTON G, 1986, TOXIC ASSESS, V1, P1

[2] NONCONSTANT POLYCHLORINATED BIPHENYL PARTITIONING IN NEW-BEDFORD HARBOR SEDIMENT DURING SEQUENTIAL BATCH LEACHING [J].