INSITU STIMULATION OF AEROBIC PCB BIODEGRADATION IN HUDSON RIVER SEDIMENTS

被引：145

作者：

HARKNESS, MR ^{[1
]}

MCDERMOTT, JB ^{[1
]}

ABRAMOWICZ, DA ^{[1
]}

SALVO, JJ ^{[1
]}

FLANAGAN, WP ^{[1
]}

STEPHENS, ML ^{[1
]}

MONDELLO, FJ ^{[1
]}

MAY, RJ ^{[1
]}

LOBOS, JH ^{[1
]}

CARROLL, KM ^{[1
]}

BRENNAN, MJ ^{[1
]}

BRACCO, AA ^{[1
]}

FISH, KM ^{[1
]}

WARNER, GL ^{[1
]}

WILSON, PR ^{[1
]}

DIETRICH, DK ^{[1
]}

LIN, DT ^{[1
]}

MORGAN, CB ^{[1
]}

GATELY, WL ^{[1
]}

机构：

[1] GE,CTR CORP RES & DEV,SCHENECTADY,NY 12301

来源：

SCIENCE | 1993年 / 259卷 / 5094期

关键词：

D O I：

10.1126/science.8424172

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A 73-day field study of in situ aerobic biodegradation of polychlorinated biphenyls (PCBs) in the Hudson River shows that indigenous aerobic microorganisms can degrade the lightly chlorinated PCBs present in these sediments. Addition of inorganic nutrients, biphenyl, and oxygen enhanced PCB biodegradation, as indicated both by a 37 to 55 percent loss of PCBs and by the production of chlorobenzoates, intermediates in the PCB biodegradation pathway. Repeated inoculation with a purified PCB-degrading bacterium failed to improve biodegradative activity. Biodegradation was also observed under mixed but unamended conditions, which suggests that this process may occur commonly in river sediments, with implications for PCB fate models and risk assessments.

引用

页码：503 / 507

页数：5

共 40 条

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