monitoring-gas Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/tag/monitoring-gas-en/ Eine weitere WordPress-Website Tue, 20 Dec 2022 21:38:39 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.5 https://oneearth-oneocean.com/wp-content/uploads/2022/08/cropped-oeoo-logo-unterzeile-blau-1-32x32.jpg monitoring-gas Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/tag/monitoring-gas-en/ 32 32 A decadal prediction of the quantity of plastic marine debris littered on beaches of the East Asian marginal seas https://oneearth-oneocean.com/en/research-en/2014/a-decadal-prediction-of-the-quantity-of-plastic-marine-debris-littered-on-beaches-of-the-east-asian-marginal-seas/ https://oneearth-oneocean.com/en/research-en/2014/a-decadal-prediction-of-the-quantity-of-plastic-marine-debris-littered-on-beaches-of-the-east-asian-marginal-seas/#respond Mon, 17 Mar 2014 20:34:18 +0000 https://oneearth-oneocean.com/2014/03/17/a-decadal-prediction-of-the-quantity-of-plastic-marine-debris-littered-on-beaches-of-the-east-asian-marginal-seas/ Shin’ichiro Kako, Atsuhiko Isobe, Tomoya Kataoka, Hirofumi Hinata, A decadal prediction of the quantity of plastic marine debris littered on beaches of the East Asian marginal seas, Marine Pollution Bulletin, Available online 18 February 2014, ISSN 0025-326X, http://dx.doi.org/10.1016/j.marpolbul.2014.01.057. (http://www.sciencedirect.com/science/article/pii/S0025326X14000812) Abstract: Large quantities of plastic litter are expected to wash ashore along the beaches of the East Asian marginal seas in the coming decade. Litter quantities were predicted using three techniques: a particle tracking model (PTM) used in conjunction with two-way PTM experiments designed to reveal litter sources, an inverse method used to compute litter outflows at each source, and a sequential monitoring system designed to monitor existing beach litter using webcams. Modeled year-to-year variation in litter quantities indicated that the amount of litter would continue to increase in the East Asian marginal seas if the level of outflow remains constant in the coming decade. The study confirms that about 3% of all East Asian beaches may potentially experience a 250-fold increase in the amount of plastic beach litter washed ashore in the next 10 years. Keywords: Plastic beach litter; Decadal numerical prediction; Particle tracking model; Inverse method; Web camera; East Asian marginal seas

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]]> Shin’ichiro Kako, Atsuhiko Isobe, Tomoya Kataoka, Hirofumi Hinata, A decadal prediction of the quantity of plastic marine debris littered on beaches of the East Asian marginal seas, Marine Pollution Bulletin, Available online 18 February 2014, ISSN 0025-326X, http://dx.doi.org/10.1016/j.marpolbul.2014.01.057. (http://www.sciencedirect.com/science/article/pii/S0025326X14000812) Abstract: Large quantities of plastic litter are expected to wash ashore along the beaches of the East Asian marginal seas in the coming decade. Litter quantities were predicted using three techniques: a particle tracking model (PTM) used in conjunction with two-way PTM experiments designed to reveal litter sources, an inverse method used to compute litter outflows at each source, and a sequential monitoring system designed to monitor existing beach litter using webcams. Modeled year-to-year variation in litter quantities indicated that the amount of litter would continue to increase in the East Asian marginal seas if the level of outflow remains constant in the coming decade. The study confirms that about 3% of all East Asian beaches may potentially experience a 250-fold increase in the amount of plastic beach litter washed ashore in the next 10 years. Keywords: Plastic beach litter; Decadal numerical prediction; Particle tracking model; Inverse method; Web camera; East Asian marginal seas

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]]> https://oneearth-oneocean.com/en/research-en/2014/a-decadal-prediction-of-the-quantity-of-plastic-marine-debris-littered-on-beaches-of-the-east-asian-marginal-seas/feed/ 0 Ocean Contamination Generated from Plastics https://oneearth-oneocean.com/en/research-en/2013/ocean-contamination-generated-from-plastics-in-comprehensive-water-quality-and-purification/ https://oneearth-oneocean.com/en/research-en/2013/ocean-contamination-generated-from-plastics-in-comprehensive-water-quality-and-purification/#respond Wed, 25 Dec 2013 12:04:00 +0000 https://oneearth-oneocean.com/2013/12/25/ocean-contamination-generated-from-plastics-in-comprehensive-water-quality-and-purification/ K. Saido, 1.6 - Ocean Contamination Generated from Plastics, In Comprehensive Water Quality and Purification, edited by Satinder Ahuja, Elsevier, Waltham, 2014, Pages 86-97, ISBN 9780123821836, http://dx.doi.org/10.1016/B978-0-12-382182-9.00005-0. (http://www.sciencedirect.com/science/article/pii/B9780123821829000050) Abstract: For clarification of causes leading to new global chemical contamination from plastics, beach sand and water taken from sites around the world were extracted with dichloromethane and analyzed by selected ion monitoring-gas chromatography/mass spectrometry (SIM-GC/MS). All samples were found to contain the styrene oligomer (SO) (in this study, SO is considered to be a mixture of styrene monomer (SM), )1styrene dimer (SD1), SD2, and styrene trimer (ST)), a mixture consisting of phenylethylene (SM), 2,4-diphenyl-1-butene (SD), and 2,4,6-triphenyl-1-hexene (ST). New global chemical contamination products were clearly shown to be derived from polystyrene (PS) decomposition and/or elution in the ocean, as well as from marine debris plastics whose presence may persist well into the future. Keywords: Adverse effects; Bisphenol A; Degradation; Elution; Marine debris plastics; Nonylphenol; Phthalate; Styrene oligomer; Toxicity

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]]> K. Saido, 1.6 - Ocean Contamination Generated from Plastics, In Comprehensive Water Quality and Purification, edited by Satinder Ahuja, Elsevier, Waltham, 2014, Pages 86-97, ISBN 9780123821836, http://dx.doi.org/10.1016/B978-0-12-382182-9.00005-0. (http://www.sciencedirect.com/science/article/pii/B9780123821829000050) Abstract: For clarification of causes leading to new global chemical contamination from plastics, beach sand and water taken from sites around the world were extracted with dichloromethane and analyzed by selected ion monitoring-gas chromatography/mass spectrometry (SIM-GC/MS). All samples were found to contain the styrene oligomer (SO) (in this study, SO is considered to be a mixture of styrene monomer (SM), )1styrene dimer (SD1), SD2, and styrene trimer (ST)), a mixture consisting of phenylethylene (SM), 2,4-diphenyl-1-butene (SD), and 2,4,6-triphenyl-1-hexene (ST). New global chemical contamination products were clearly shown to be derived from polystyrene (PS) decomposition and/or elution in the ocean, as well as from marine debris plastics whose presence may persist well into the future. Keywords: Adverse effects; Bisphenol A; Degradation; Elution; Marine debris plastics; Nonylphenol; Phthalate; Styrene oligomer; Toxicity

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