Environmental Behavior of Perfluorinated Surfactants in Tokyo Bay
نویسندگان
چکیده
منابع مشابه
Estimated Mass Balances of Perfluorinated Chemicals in Tokyo Bay
Introduction Perfluorinated chemicals (PFCs) have been used widely as surfactants, lubricants, paper and textile coatings, polishes, food packaging, and fire-retarding foams over the past fifty years. Some of these chemicals, such as perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), are persistent in the environment and have been found in wild animal samples around the wor...
متن کاملTime trends of perfluorinated compounds from the sediment core of Tokyo Bay, Japan (1950s-2004).
Perfluorinated compounds (PFCs) were detected in sediment core samples collected in Tokyo Bay to reveal their time trends. The core sample deposited during 1950s-2004 was divided into two- to three-year intervals and the concentrations of 24 types of PFCs were determined. Perfluorooctane sulfonate (PFOS) decreased gradually from the early 1990s and its precursor decreased rapidly in the late 19...
متن کاملidentification by GIS - based receptor model applied to diffuse water pollution by perfluorinated compounds in Tokyo Bay Basin , Japan
Among them, perfluorooctane sulfonate (PFOS) is speculated to be highly persistent, bioaccumulative and toxic (PBT) compound. Afterwards, PFOS and its synthetic starting material, perfluorooctyl sulfonyl fluoride (PFOSF), have been designated as persistent organic pollutants (POPs) by the Stockholm Convention on POPs in 2009. Therefore, to efficiently reduce PFC pollution, an understanding of P...
متن کاملSource Identification of Polychlorinated Biphenyls in Tokyo Bay Sediment
Introduction To employ improved countermeasures against PCB sources and to reduce the risk to aquatic biota, it is important to identify sources and migration pathways and ascertain their contribution to PCB pollution . Thus, a wider range of studies is required to identify potential PCB sources in the environment. The objective of this study is to identify PCB pollution sources affecting Tokyo...
متن کاملA significant net sink for CO2 in Tokyo Bay
Most estuaries and inland waters are significant source for atmospheric CO2 because of input of terrestrial inorganic carbon and mineralization of terrestrially supplied organic carbon. In contrast to most coastal waters, some estuaries with small freshwater discharge are weak source or sometimes sink for CO2. Extensive surveys of pCO2 in Tokyo Bay showed that the overall bay acts as a strong n...
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ژورنال
عنوان ژورنال: Journal of Japan Society on Water Environment
سال: 2006
ISSN: 0916-8958,1881-3690
DOI: 10.2965/jswe.29.221