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Resultados 1-10 de 18
Ambient ozone (O3) in three class I wilderness areas in the northeastern USA: measurements with Ogawa passive samplers.
1996
Manning W.J. | Krupa S.V. | Bergweiler C.J. | Nelson K.I.
Accumulation of aluminum and iron by bryophytes in streams affected by acid-mine drainage.
1996
Engleman C.J. Jr. | McDiffett W.F.
Heavy metals in tissues of waterfowl from the Chesapeake Bay, USA.
1984
Guilo R.T. di | Scanlon P.F.
Organic contaminants in sediments from San Quintin Bay, Baja California, Mexico.
1996
Galindo E.A.G. | Celaya J.A.V. | Munoz G.F. | Sericano J.L.
Organochlorine pesticide residues in marine sediment and biota from the Northern Florida reef tract.
1995
Glynn P.W. | Rumbold D.G. | Snedaker S.C.
Novel toxic dinoflagellate causes epidemic disease in estuarine fish [USA].
1996
Noga E.J. | Khoo L. | Stevens J.B. | Fan Z. | Burkholder J.M.
Use of a chemical equilibrium model to understand soil chemical processes that influence soil solution and surface water alkalinity.
1988
David M.B. | Reuss J.O. | Walthall P.M.
Chronic toxicity of an environmental contaminant mixture to young (or larval) striped bass.
1987
Mehrle P.M. | Cleveland L. | Buckler D.R.
Carbonaceous aerosol at urban and rural sites in the United States.
1986
Shah J.J. | Johnson R.L. | Heyerdahl E.K. | Huntzicker J.J.
Characterization of microplastic and mesoplastic debris in sediments from Kamilo Beach and Kahuku Beach, Hawai'i
2016
Young, Alan M. | Elliott, James A.
Sediment samples were collected from two Hawai'ian beaches, Kahuku Beach on O'ahu and Kamilo Beach on the Big Island of Hawai'i. A total of 48,988 large microplastic and small mesoplastic (0.5–8mm) particles were handpicked from the samples and sorted into four size classes (0.5–1mm, 1–2mm, 2–4mm, 4–8mm) and nine color categories. For all sizes combined the most common plastic fragment color was white/transparent (71.8%) followed by blue (8.5%), green (7.5%), black/grey (7.3%), red/pink (2.6%), yellow (1.2%), orange (0.6%), brown (0.3%) and purple (0.2%). Color frequency distribution based on both numbers and mass of particles was not significantly different among the various size classes nor between the two beaches. White and black/grey resin pellets accounted for 11.3% of the particles collected from Kahuku Beach and 4.2% of the particles from Kamilo Beach. Plastic type based on Raman Spectrometer analysis of a small representative subsample indicated that most of the fragments were polyethylene and a few were polypropylene.
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