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111.
Tanabe S Falandysz J Higaki T Kannan K Tatsukawa R 《Environmental pollution (Barking, Essex : 1987)》1993,79(1):45-49
Concentrations of PCBs (polychlorinated biphenyls) and organochlorine insecticides such as DDT, HCHs (hexachlorocyclohexanes), HCB (hexachlorobenzene) and chlordanes were determined in human adipose fat from the provinces of Skierniewice and Gdańsk in Poland collected during 1979 and 1990, respectively. The mean levels (microg g(-1) lipid weight basis) in Skierniewice and Gdańsk were found to be 1.2+/-0.44 and 1.5+/-1.3 for PCBs, 25+/-16 and 15+/-13 for DDT, 0.53+/-0.17 and 0.25+/-0.09 for HCHs, 0.36+/-0.22 and 0.26+/-0.23 for HCB, and 0.11+/-0.08 and 0.07+/-0.04 for chlordanes, respectively. Very high concentrations of DDT were detected, with the maximum value as high as 52 microg g(-1) lipid weight in Skierniewice and 47 microg g(-1) lipid weight in Gdańsk. PCB residues contained in the human fat from Polish cadavers are comparable to those of the levels reported for industrialized nations. It is appraised from the levels of DDT and PCBs in Poles' fat that the Polish environment is still experiencing both types of contamination, arising from agricultural and industrial activities. Contamination of humans by other organochlorine insecticides was relatively lower. 相似文献
112.
Tanabe S Kannan K Tabucanon MS Siriwong C Ambe Y Tatsukawa R 《Environmental pollution (Barking, Essex : 1987)》1991,72(3):191-203
Raw foodstuffs collected from Bangkok, Thailand, were analysed for the presence of PCBs, DDTs, HCHs (BHCs). HCB, aldrin, dieldrin, heptachlor and heptachlor epoxide. Residues of PCBs and organochlorine pesticides were detected in all the samples analysed. Concentrations of PCBs did not reach the tolerance limit set forth by the US Food and Drug Administration (FDA). The concentrations of SigmaHCH were higher than those of SigmaDDT in all the farm products while the levels of SigmaDDT were greater in fishes including fish flakes and fishmeal. Meat samples recorded higher concentrations of SigmaDDT and dieldrin than SigmaHCH. Comparing the levels of organochlorines in foodstuffs from Bangkok, considerable levels of aldrin and dieldrin indicate the need for concern from the food safety point of view because of their much higher toxicity than DDT and other organochlorines. However, the levels did not exceed the Maximum Residue Limit (MRL) recommended by FAO/WHO. Food contamination by HCB, heptachlor and heptachlor epoxide is comparatively lower. 相似文献
113.
Kannan K Kajiwara N Le Boeuf BJ Tanabe S 《Environmental pollution (Barking, Essex : 1987)》2004,131(3):425-434
Concentrations of polychlorinated biphenyls (PCBs), DDTs, chlordanes, HCHs, hexachlorobenzene (HCB), dieldrin, heptachlor epoxide, tris(4-chlorophenyl)methane (TCPMe), and tris(4-chlorophenyl)methanol (TCPMOH) were measured in the blubber of California sea lions (Zalophus californianus) collected in 2000. DDTs were the most predominant contaminants, followed by PCBs, chlordanes, TCPMe, HCHs, TCPMOH, dieldrin, and heptachlor epoxide. Concentrations of PCBs and DDTs varied from a few microg/g to several hundreds of microg/g on a lipid weight basis. Concentrations of DDTs have declined by an order of magnitude over the last three decades in California sea lions; nevertheless, the measured concentrations of PCBs and DDTs in California sea lions are still some of the highest values reported for marine mammals in recent years. Concentrations of organochlorines were highly correlated with one another. Concentrations of PCBs and DDTs in the blubber of gray whale, humpback whale, northern elephant seal, and harbor seal, and in the adipose fat of sea otter, were lower than the levels found in California sea lions, and were in the range of a few to several microg/g on a lipid weight basis. 相似文献
114.
Kunisue T Nakanishi S Watanabe M Abe T Nakatsu S Kawauchi S Sano A Horii A Kano Y Tanabe S 《Environmental pollution (Barking, Essex : 1987)》2005,136(3):465-476
Concentrations of persistent organochlorines (OCs) such as polychlorinated dibenzo-p-dioxin (PCDDs), dibenzofurans (PCDFs), biphenyls, dichlorodiphenyltrichloroethane and their metabolites (DDTs), hexachlorocyclohexane isomers, hexachlorobenzene, and chlordane compounds were determined in genital organs of pet dogs and cats and pet foods from Japan. Levels of OCs in dogs were relatively lower than those in cats, while residue levels in their diets were almost similar, implying that accumulation and elimination mechanisms of these contaminants are different between dogs and cats. When bioconcentration factors (BCFs) were estimated from concentrations of OCs in dogs, cats, and their diets, BCFs of all the OCs except PCDD/DFs exceeded 1.0 in cats. On the other hand, in all the dogs, BCFs of DDTs were below 1.0, suggesting that dogs do not bioconcentrate DDTs. Furthermore, BCFs of all the OCs except PCDD/DFs in dogs were notably lower than those in cats, suggesting that dogs have higher metabolic and elimination capacity for these contaminants than cats. When residue levels of OCs in livers, adipose tissue, and genital organs of two pet dogs were examined, hepatic sequestration of PCDD/DFs and oxychlordane was observed. 相似文献
115.
Iwata H Tanabe S Sakai N Nishimura A Tatsukawa R 《Environmental pollution (Barking, Essex : 1987)》1994,85(1):15-33
Persistent organochlorines in air, river water and sediment samples were analysed from eastern and southern Asia (India, Thailand, Vietnam, Malaysia, Indonesia) and Oceania (Papua New Guinea and Solomon Islands) to elucidate their geographical distribution in tropical environment. The concentrations of organochlorines in these abiotic samples collected from Taiwan, Japan and Australia were also monitored for comparison. Atmospheric and hydrospheric concentrations of HCHs (hexachlorocyclohexanes) and DDTs (DDT and its metabolites) in the tropical developing countries were apparently higher than those observed in the developed nations, suggesting extensive usage of these chemicals in the lower latitudes. CHLs (chlordane compounds) and PCBs (polychlorinated biphenyls) were also occasionally observed at higher levels in the tropics, implying that their usage area is also expanding southward. Distribution patterns of organochlorines in sediments showed smaller spatial variations on global terms, indicating that the chemicals released in the tropical environment are dispersed rapidly through air and water and retained less in sediments. The ratios of organochlorine concentrations in sediment and water phases were positively correlated with the latitude of sampling, suggesting that persistent and semivolatile compounds discharged in the tropics tend to be redistributed on a global scale. 相似文献
116.
Sudaryanto A Takahashi S Iwata H Tanabe S Ismail A 《Environmental pollution (Barking, Essex : 1987)》2004,130(3):347-358
Concentration of butyltin compounds (BTs), including tributyltin (TBT), dibutyltin (DBT) and monobutyltin (MBT) and total tin (SigmaSn) were determined in green mussel (Perna viridis), 10 species of muscle fish and sediment from coastal waters of Malaysia. BTs were detected in all these samples ranging from 3.6 to 900 ng/g wet wt., 3.6 to 210 ng/g wet wt., and 18 to 1400 ng/g dry wt. for mussels, fish and sediments, respectively. The concentrations of BTs in several locations of this study were comparable with the reported values from some developed countries and highest among Asian developing nations. Considerable concentration of BTs in several locations might have ecotoxicological consequences and may cause concern to human health. The parent compound TBT was found to be highest than those of its degradation compounds, DBT and MBT, suggesting recent input of TBT to the Malaysian marine environment. Significant positive correlation (Spearman rank correlation: r2=0.82, P<0.0001) was found between BTs and SigmaSn, implying considerable anthropogenic input of butyltin compounds to total tin contamination levels. Enormous boating activities may be a major source of BTs in this country, although aquaculture activities may not be ignored. 相似文献
117.
Shinsuke Tanabe Narayanan Kannan Tadaaki Wakimoto Ryo Tatsukawa Taku Okamoto Yoshito Masuda 《毒物与环境化学》2013,95(4):215-231
In the light of new discoveries on the extremely toxic non‐ortho coplanar 3,3’,4,4'‐tetra‐ (T4CB), 3,3’,4,4’,5‐penta‐(P5CB) and 3,3'4,4’,5,5'‐hexachlorobiphenyl (H6CB) and their mono‐ and di‐ortho analogs, tissue samples of a Yusho poisoning victim and Yusho causal oils were subjected to a thorough congener/isomer‐specific investigation for polychlorinated biphenyls (PCBs), polychlorinated dibenzofurans (PCDFs), polychlorinated dibenzo‐p‐dioxins (PCDDs). Among the many PCB congeners detected in Yusho oil, non‐ortho coplanar T4CB constituted 3.1%, P5CB‐0.17% and H6CB‐0.0072% in total PCBs. Their concentrations in liver and adipose tissue were 130–700 (T4CB), 54–720 (P5CB) and 50–380 (H6CB) pg/g on wet weight basis. The observed concentrations in adipose tissue were two to four fold higher than that detected in unexposed individuals. Among the PCDFs identified, toxic 2,3,7,8‐substituted isomers including 2,3,4,7,8‐P5CDF were the dominant ones. Tetra‐ through hepta‐CDDs were detected in the oil, whereas octa‐CDD was the dominant isomer in the patient. A comparison with KC‐400 revealed enrichment of coplanar PCBs in Yusho oil along with toxic PCDFs. Enrichment was highest for 3,3'4,4'5,5'‐H6CB followed by 3,3’,4,4'5‐P5CB. A comparative toxic evaluation of these chemical groups in Yusho patient's adipose tissue based on “2,3,7,8‐T4CDD Toxic Equivalent Analysis” revealed accountable toxic contribution from coplanar PCBs. This analysis also confirmed that 2,3,4,7,8‐P5CDF was the principal causative agent in Yusho poisoning. 相似文献
118.
H. Hoshi N. Minamoto H. Iwata K. Shiraki R. Tatsukawa S. Tanabe S. Fujita K. Hirai T. Kinjo 《Chemosphere》1998,36(15):3211-3221
In order to understand the residue levels of organochlorine compounds (OCs) and their accumulation patterns in wildlife inhabiting Chubu region, Japan, the concentrations of polychlorinated biphenyls (PCBs), hexachlorocyclohexane isomers (HCHs), DDT compounds (DDTs) and hexachlorobenzene (HCB) were measured in 8 species of terrestrial mammals and 10 species of birds. In view of feeding habits, the contamination levels of OCs were found to be higher in omnivorous mammals than in herbivorous ones, and in fish-eating ones and raptores than in omnivorous birds. In fox and dog, PCB-180 (2, 2′, 3, 4, 4′, 5, 5′-heptachlorobiphenyl) was the most dominant PCB congener, while in the other species PCB-153 (2, 2′, 4, 4′, 5, 5′-hexachlorobiphenyl) was the most persistent. The ratios of lower chlorinated PCB congeners (tri- to tetra-) to total PCBs were larger in fish-eating birds than in the other birds. The results indicate that the compositions of PCB congeners would reflect the differences of feeding habits and xenobiotic metabolizing systems among each species. 相似文献
119.
Masayuki Tanabe Atsumi Miyake 《Journal of Loss Prevention in the Process Industries》2010,23(4):507-514
A safety design approach for onshore modularized Liquefied Natural Gas (LNG) liquefaction plant is discussed in this paper. As onshore modularized LNG liquefaction plants have both onshore and offshore plants features, and the safety in design for the plant can only be achieved when the project environment and specific design features are properly understood, this paper identifies specific safety design features of each plant (onshore and offshore) and compares the typical “onshore” and “offshore” safety design approaches. Based on this comparison and consideration for modularization features, a safety design approach for onshore modularized LNG liquefaction plant is proposed. 相似文献
120.
Tanabe S 《Journal of environmental monitoring : JEM》2006,8(8):782-790
During the last 40 years, The Center for Marine Environmental Studies (CMES), Ehime University collected a variety of environmental and biological material comprising about 1000 species and 100,000 samples from many developing and developed countries and also open seas and oceans all over the world. They were categorically archived, catalogued and stocked in our Environment Specimen Bank (es-BANK) facility equipped with a -25 degrees C cold room. We have already exchanged specimens with many scientific institutions and are also eager to widen our collaboration with other specimen banks. In our survey using the air, water, wildlife and human samples, we found that the major emission sources for the industrial chemicals like polychlorinated biphenyls (PCBs) are in the developed nations while those of organochlorine (OC) pesticides like dichlorodiphenyltrichloroethane and its metabolites (DDTs), hexachlorocyclohexane isomers (HCHs), etc. are located in developing countries. However, significant emission of modern environmental contaminants such as polybrominated diphenyl ethers (PBDEs) also seems to occur predominantly in countries with high economic growth rates. Apart from the modern incinerators and other industrial installations in developed nations, the compounds, like dioxins and related compounds (DRCs), were also found to be released in significant levels from the municipal solid waste dumping sites of developing countries. By evaluating the distribution patterns of various persistent toxic substances (PTSs) in our studies, we could conclude that DRCs and DDTs are regional contaminants, while PCBs, PBDEs, HCHs and hexachlorobenzene (HCB) are global contaminants. We also found that the pollution by PBDEs has been increasing in the last two decades while that of the legacy OCs has been decreasing. 相似文献