Massive PCB dredging proposed for Fox River
نویسندگان
چکیده
منابع مشابه
Proposed PCB congener groupings for epidemiological studies.
Health effects related to polychlorinated biphenyls (PCBs), which include 209 possible congeners exhibiting a variety of chlorine substitution patterns (Fig. 1), are the subject of numerous research investigations. Individual members of this family evoke diverse responses in experimental models and in humans. Certain PCB congeners mimic hormones and are neurotoxic (1-3). Others produce a dioxin...
متن کاملtechnical and legal parameters for determination of river boundary,( case study haraz river)
چکیده با توسعه شهر نشینی و دخل و تصرف غیر مجاز در حریم رودخانه ها خسارات زیادی به رودخانه و محیط زیست اطراف آن وارده می شود. در حال حاضر بر اساس آئین نامه اصلاح شده بستر و حریم رودخانه ها، حریم کمی رودخانه که بلافاصله پس از بستر قرار می گیرد از 1 تا20 متر از منتهی الیه طرفین بستر رودخانه تعیین، که مقدار دقیق آن در هر بازه از رودخانه مشخص نیست. در کشورهای دیگر روشهای متفاوتی من جمله: درصد ریسک...
15 صفحه اولPCB dechlorination enhancement in Anacostia River sediment microcosms.
In situ treatment of PCB contaminated sediments via microbial dechlorination is a promising alternative to dredging, which may be reserved for only the most contaminated areas. Reductive dechlorination of low levels of weathered PCB mixtures typical of urban environments may occur at slow rates. Here, we report that biostimulation and bioaugmentation enhanced dechlorination of low concentration...
متن کاملPCB congener dynamics in a heavily industrialized river catchment.
PCB congener concentrations in the water column of a highly industrialized river catchment, the Aire/Calder, in N.E. England were determined weekly on a routine basis, and 2 hourly through selected high flow (flood) events. Bed, suspended and floodplain sediment PCB congener concentrations were also determined along transects of the rivers investigated. Weekly monitoring revealed that the sum o...
متن کاملData Dredging
Suppose there is a given data set and there are a huge number of hypotheses [1] about this data set [2]. If the data is totally random, then say all the hypotheses are actually false. However, owing to the sheer number of hypotheses on a limited data set, it is possible to see some very highly correlated [3] data that are statistically significant [4]. In such cases, data dredging is said to ha...
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ژورنال
عنوان ژورنال: Environmental Science & Technology
سال: 2001
ISSN: 0013-936X,1520-5851
DOI: 10.1021/es012568t