Fate and transport of micro- and nanoplastics in graywater, fresh and marine water systems

Representative compounds from three classes of herbicides (atrazine, linuron, and treflan) were studied to determine ambient levels in the Chesapeake Bay and its tributaries during portions of 1980. All levels were 1 μg/L or less, and all three herbicides exhibited non-conservative behavior in the estuary. Concentrations of herbicides in runoff from a defined watershed did not exceed 9 μg/L. Degradation rates for all three herbicides in estuarine sediment-water systems were 2–10 times greater than those reported for soils. Equilibrium sorption constants (Koc) of estuarine sediments were similar to soils, but suspended colloids were found to sorb atrazine and linuron 10–30 times more strongly on a per gram of carbon basis, suggesting that refractory hydrophobic pollutants may be transported greater distances in the water column than previously assumed. However, the large degradative capacity of the estuarine community may act to prevent transport of labile organics from the land to the oceans.

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Fate and transport of the β-adrenergic agonist ractopamine hydrochloride in soil–water systems

Journal of Environmental Sciences ◽

10.1016/j.jes.2015.11.026 ◽

2016 ◽

Vol 45 ◽

pp. 40-48 ◽

Cited By ~ 4

Author(s):

Heldur Hakk ◽

Weilin L. Shelver ◽

Francis X.M. Casey

Keyword(s):

Soil Water ◽

Fate And Transport ◽

Water Systems ◽

Adrenergic Agonist ◽

Ractopamine Hydrochloride

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Fate and transport of 1278-TCDD, 1378-TCDD, and 1478-TCDD in soil–water systems

The Science of The Total Environment ◽

10.1016/j.scitotenv.2006.07.024 ◽

2006 ◽

Vol 371 (1-3) ◽

pp. 323-333 ◽

Cited By ~ 11

Author(s):

Zhaosheng Fan ◽

Francis X.M. Casey ◽

Gerald L. Larsen ◽

Heldur Hakk

Keyword(s):

Soil Water ◽

Fate And Transport ◽

Water Systems

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Development of guidelines for ammonia in estuarine and marine water systems

Marine Pollution Bulletin ◽

10.1016/j.marpolbul.2009.06.005 ◽

2009 ◽

Vol 58 (10) ◽

pp. 1472-1476 ◽

Cited By ~ 27

Author(s):

Graeme E. Batley ◽

Stuart L. Simpson

Keyword(s):

Water Systems ◽

Marine Water

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Transport Behavior of Engineered Nanosized Photocatalytic Materials in Water

Journal of Nanomaterials ◽

10.1155/2013/856387 ◽

2013 ◽

Vol 2013 ◽

pp. 1-13 ◽

Cited By ~ 4

Author(s):

Guang’an He ◽

Hong Liu ◽

Rui Chen ◽

Chuan Wang

Keyword(s):

Ph Value ◽

State Of The Art ◽

Fate And Transport ◽

Water Systems ◽

Important Application ◽

Engineered Nanoparticles ◽

Ionic Valence ◽

Wastewater Systems ◽

Potential Risks ◽

Detection Technologies

Engineered nanoparticles (ENPs) possess unique properties and are employed in many sectors, and thus their release into environment remains. The potential risks of ENPs have been confirmed by an increasing number of studies that necessitate a better knowledge to the fate and transport of ENPs. One important application of ENP is photocatalysis for production of H2as energy and pollutant decomposition. Engineered photocatalytic nanoparticles (PCNPs) can also easily enter the environment with the rapid increase in its manufacture and use. This review focuses on the transport of PCNPs in water by addressing the important factors that determine the transport of PCNPs, such as particle size, pH value, ionic strength (IS), ionic valence, and organic matter. The transport of PCNPs in natural water systems and wastewater systems is also presented with an attempt to provide more abundant information. In addition, the state of the art of the detection technologies of PCNPs has been covered.

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