DEGRADATION OF SELECTED POLYCYCLIC AROMATIC-HYDROCARBONS IN COASTAL SEDIMENTS - IMPORTANCE OF MICROBES AND POLYCHAETE WORMS

被引：71

作者：

GARDNER, WS ^{[1
]}

LEE, RF ^{[1
]}

TENORE, KR ^{[1
]}

SMITH, LW ^{[1
]}

机构：

[1] SKIDAWAY INST OCEANOG,SAVANNAH,GA 31406

来源：

WATER AIR AND SOIL POLLUTION | 1979年 / 11卷 / 03期

关键词：

D O I：

10.1007/BF00296591

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Rates of degradation of polycyclic aromatic hydrocarbons (PAH) were examined after addition of crude oil enriched with anthracene, fluoranthene, benz(a)anthracene, and benzo(a)pyrene to coastal sediments in a laboratory (20°) flowing seawater system. Three types of sediment (fine sand, medium sand, and marsh sediment) with and without the benthic polychaete worm, Capitella capitata, were used. After extraction from the sediment, PAH concentrations were measured by liquid chromatography with fluorescent detection. Microbial degradation was studied by incubating sediments with radioactive PAH and measuring subsequent production of 14C02. Concentrations of the four PAH decreased significantly with time in fine and medium sized sands. PAH levels also decreased in marsh sediment but trends were not significant (P < 0.05). C. capitata stimulated PAH degradation. Microbial degradation was more rapid in upper surfaces than in lower layers of the sediments. © 1979 D. Reidel Publishing Co.

引用

页码：339 / 347

页数：9

共 25 条

[1]

BLUMER M, 1976, SCI AM, V234, P35

[2] OIL POLLUTION - PERSISTENCE AND DEGRADATION OF SPILLED FUEL OIL [J].