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Your search keyword '"Hirai, Hisashi"' showing total 4 results
Start Over Author "Hirai, Hisashi" Publisher elsevier
4 results on '"Hirai, Hisashi"'

1. International Pellet Watch: global monitoring of persistent organic pollutants (POPs) in coastal waters. 1. Initial phase data on PCBs, DDTs, and HCHs

Author

Ogata, Yuko, Takada, Hideshige, Mizukawa, Kaoruko, Hirai, Hisashi, Iwasa, Satoru, Endo, Satoshi, Mato, Yukie, Saha, Mahua, Okuda, Keiji, Nakashima, Arisa, Murakami, Michio, Zurcher, Nico, Booyatumanondo, Ruchaya, Zakaria, Mohamad Pauzi, Dung, Le Quang, Gordon, Miriam, Miguez, Carlos, Suzuki, Satoru, Moore, Charles, Karapanagioti, Hrissi K., Weerts, Steven, McClurg, Tim, Burres, Erick, Smith, Wally, Velkenburg, Michael Van, Lang, Judith Selby, Lang, Richard C., Laursen, Duane, Danner, Brenda, Stewardson, Nickol, Thompson, Richard C., Ogata, Yuko, Takada, Hideshige, Mizukawa, Kaoruko, Hirai, Hisashi, Iwasa, Satoru, Endo, Satoshi, Mato, Yukie, Saha, Mahua, Okuda, Keiji, Nakashima, Arisa, Murakami, Michio, Zurcher, Nico, Booyatumanondo, Ruchaya, Zakaria, Mohamad Pauzi, Dung, Le Quang, Gordon, Miriam, Miguez, Carlos, Suzuki, Satoru, Moore, Charles, Karapanagioti, Hrissi K., Weerts, Steven, McClurg, Tim, Burres, Erick, Smith, Wally, Velkenburg, Michael Van, Lang, Judith Selby, Lang, Richard C., Laursen, Duane, Danner, Brenda, Stewardson, Nickol, and Thompson, Richard C.

Abstract

Samples of polyethylene pellets were collected at 30 beaches from 17 countries and analyzed for organochlorine compounds. PCB concentrations in the pellets were highest on US coasts, followed by western Europe and Japan, and were lower in tropical Asia, southern Africa and Australia. This spatial pattern reflected regional differences in the usage of PCBs and was positively correlated with data from Mussel Watch, another monitoring approach. DDTs showed high concentrations on the US west coast and in Vietnam. In Vietnam, DDT was predominant over its metabolites (DDE and DDD), suggesting the principal source may be current usage of the pesticide for malaria control. High concentrations of pesticide HCHs were detected in the pellets from southern Africa, suggesting current usage of the pesticides in southern Africa. This study demonstrates the utility and feasibility of the International Pellet Watch approach to monitor POPs at a global scale.

Published
2009

2. International pellet watch: global monitoring of persistent organic pollutants(POPs) in coastal waters. 1. Initial phase data on PCBs, DDTs, and HCHs

Author

Ogata, Yuko, Takada, Hideshige, Mizukawa, Kaoruko, Hirai, HIsashi, Iwasa, Satoru, Zakaria, Mohamad Pauzi, Ogata, Yuko, Takada, Hideshige, Mizukawa, Kaoruko, Hirai, HIsashi, Iwasa, Satoru, and Zakaria, Mohamad Pauzi

Abstract

Samples of polyethylene pellets were collected at 30 beaches from 17 countries and analyzed for organochlorine compounds. PCB concentrations in the pellets were highest on US coasts, followed by western Europe and Japan, and were lower in tropical Asia, southern Africa and Australia. This spatial pattern reflected regional differences in the usage of PCBs and was positively correlated with data from Mussel Watch, another monitoring approach. DDTs showed high concentrations on the US west coast and in Vietnam. In Vietnam, DDT was predominant over its metabolites (DDE and DDD), suggesting the principal source may be current usage of the pesticide for malaria control. High concentrations of pesticide HCHs were detected in the pellets from southern Africa, suggesting current usage of the pesticides in southern Africa. This study demonstrates the utility and feasibility of the International Pellet Watch approach to monitor POPs at a global scale.

Published
2009

3. Organic micropollutants in marine plastics debris from the open ocean and remote and urban beaches.

Author

Hirai H, Takada H, Ogata Y, Yamashita R, Mizukawa K, Saha M, Kwan C, Moore C, Gray H, Laursen D, Zettler ER, Farrington JW, Reddy CM, Peacock EE, and Ward MW

Subjects
Benzhydryl Compounds, Cities, Halogenated Diphenyl Ethers analysis, Oceans and Seas, Phenols analysis, Plastics chemistry, Polychlorinated Biphenyls analysis, Polycyclic Aromatic Hydrocarbons analysis, Seawater chemistry, Bathing Beaches, Environmental Monitoring, Plastics analysis, Seawater analysis, Water Pollutants, Chemical analysis
Abstract

To understand the spatial variation in concentrations and compositions of organic micropollutants in marine plastic debris and their sources, we analyzed plastic fragments (∼10 mm) from the open ocean and from remote and urban beaches. Polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), dichloro-diphenyl-trichloroethane and its metabolites (DDTs), polybrominated diphenyl ethers (PBDEs), alkylphenols and bisphenol A were detected in the fragments at concentrations from 1 to 10,000 ng/g. Concentrations showed large piece-to-piece variability. Hydrophobic organic compounds such as PCBs and PAHs were sorbed from seawater to the plastic fragments. PCBs are most probably derived from legacy pollution. PAHs showed a petrogenic signature, suggesting the sorption of PAHs from oil slicks. Nonylphenol, bisphenol A, and PBDEs came mainly from additives and were detected at high concentrations in some fragments both from remote and urban beaches and the open ocean., (Copyright © 2011 Elsevier Ltd. All rights reserved.)

Published
2011
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4. International Pellet Watch: global monitoring of persistent organic pollutants (POPs) in coastal waters. 1. Initial phase data on PCBs, DDTs, and HCHs.

Author

Ogata Y, Takada H, Mizukawa K, Hirai H, Iwasa S, Endo S, Mato Y, Saha M, Okuda K, Nakashima A, Murakami M, Zurcher N, Booyatumanondo R, Zakaria MP, Dung le Q, Gordon M, Miguez C, Suzuki S, Moore C, Karapanagioti HK, Weerts S, McClurg T, Burres E, Smith W, Van Velkenburg M, Lang JS, Lang RC, Laursen D, Danner B, Stewardson N, and Thompson RC

Subjects
Bathing Beaches statistics & numerical data, Environmental Monitoring methods, Gas Chromatography-Mass Spectrometry, Geography, DDT analysis, Environmental Monitoring statistics & numerical data, Environmental Pollutants analysis, Hydrocarbons, Halogenated analysis, Polychlorinated Biphenyls analysis, Polyethylene chemistry
Abstract

Samples of polyethylene pellets were collected at 30 beaches from 17 countries and analyzed for organochlorine compounds. PCB concentrations in the pellets were highest on US coasts, followed by western Europe and Japan, and were lower in tropical Asia, southern Africa and Australia. This spatial pattern reflected regional differences in the usage of PCBs and was positively correlated with data from Mussel Watch, another monitoring approach. DDTs showed high concentrations on the US west coast and in Vietnam. In Vietnam, DDT was predominant over its metabolites (DDE and DDD), suggesting the principal source may be current usage of the pesticide for malaria control. High concentrations of pesticide HCHs were detected in the pellets from southern Africa, suggesting current usage of the pesticides in southern Africa. This study demonstrates the utility and feasibility of the International Pellet Watch approach to monitor POPs at a global scale.

Published
2009
Full Text
View/download PDF

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