York River estuary

Figure 13.15 Comparison of A14C versus <513C for bacterial nucleic acids and potential sources for the (a) entire York River estuary, (b) the freshwater, (c) mid-salinity, and (d) high-salinity (river mouth) regions in the estuary. Boxes are the 95% confidence intervals for the potential end-members in the York. Dotted lines represent the solution space from one run of a model. (Modified from McCallister et ah, 2004.)...

Figure 13.16 Down-core sediment profiles of (a) total organic carbon (TOC) and (b) atomic C N ratios at two locations in the York River estuary. (Modified from Arzayus...

Arzayus, K.M., and Canuel, E.A. (2004) Organic matter degradation of the York River estuary effects of biological vs. physical mixing. Geochim. Cosmochim. Acta 69, 455—463. 

Neubauer, S.C., and Anderson, I.C. (2003) Transport of dissolved inorganic carbon from a tidal freshwater marsh to the York River estuary. Limnol. Oceanogr. 48, 299-307. 

Raymond, P.A, Bauer, J.E., and Cole, J.J. (2000) Atmospheric CO2 evasion, dissolved inorganic carbon production, and net heterotrophy in the York River estuary. Limnol. Oceanogr. 45, 1707-1717. 

The solubility of chlordecone in water is low (1--3 mg/L) and as with mirex, contamination is more likely to be associated with the particulate matter in the water rather than the water itself. Chlordecone was detected primarily in water samples collected in and around the production facility site in Hopewell, Virginia, and in adjacent waters of the James River estuary. Effluent from the Life Sciences Products Company facility contained 0.1 —1.0 mg/L (ppm) chlordecone, while water in holding ponds at the site contained 2--3 mg/L (ppm) chlordecone (Epstein 1978). Levels of chlordecone in river water in August 1975 ranged from not detectable (<50 ng/L [ppt]) in the York River and Swift Creek areas, to levels of 1--4 pg/L (ppb) in Bailey Creek which received direct effluent discharges from the Hopewell Sewage Treatment Plant. Water concentrations of up to 0.3 p g/L (ppb) were detected in the James River at the mouth of Bailey Creek and in the Appomattox... 

Dellapenna, T.H., Kuehl, S.A., and Pitts, L. (2001) Transient, longitudinal, sedimentary furrows in the York River subestuary, Chesapeake Bay furrow evolution and effects on seabed mixing and sediment transport. Estuaries 24, 215-227. 

Figure 4.17 Correlation of Hudson River volumetric discharge at Waterford, New York, to enantiomer fractions (EFs) of dissolved (A) and particulate PCB 95 In the Hudson River Estuary. (Reproduced with permission from Environmental Science and Technology, Chiral Source Apportionment of Polychlorinated Biphenyls to the Hudson River Estuary Atmosphere and Food Web, by Brian j. Asher, Charles S. Wong and Lisa A. Rodenburg, 41(17), 6163-6169. Copyright (2007) American Chemical Society)...

Carpenter, E. J., and Dunham, S. (1985). Nitrogenous nutrient uptake, primary production, and species composition of phytoplankton in the Carmans River estuary. Long Island, New York. Limnol. Oceanogr. 30, 513—526. 

Wilke, R. J. and Dayal, R. (1982). The behavior of iron, manganese, and silicon in the Peconic River estuary. New York. Estuarine Coastal Shelf Sci. 15, 577-586. 

Humin isolates from sediments of the Mew York Bight and Potomac River estuary have spectra that are notably different in that aromatic carbons are the dominant components. The spectra resemble that of humin isolated in the same manner from an aerobic soil from southern Georgia (Figure 5). However, unlike the humin from soil which shows a significant peak for carboxyl carbon (175 ppm), spectra of humin from the New York Bight and the Potomac River do not display a discreet peak at 175 ppm and appear to be depleted of carboxy 1/amide groups. Elemental data for these humins (19) are consistent with the NMR results. Atomic H/C ratios of less than 0.8 are not typical of humic material but more like those of highly aromatic coal or coal-like products. The NMR spectra also resemble... 

Countway RE, Dickhut RM, Canuel EA (2003) Polycyclic Aromatic Hydrocarbons (PAH) distributions and associations with organic matter in surface waters of the York river, VA Estuary. Org Geochem 34, 209-224. 

Radiocesium-137 in water from the Hudson River estuary, New York, decreased tenfold between 1964 and 1970, but the Cs content in fish and in sediments remained relatively constant. The effluent from the United Kingdom s Atomic Energy Agency Sellafield facility on the Cumberland Coast of the Irish Sea contained Sr and Cs, which are soluble in seawater and tend to remain in solution, and ° Ru, Ce, and Zr/ Nb, which are relatively insoluble in seawater and coprecipitate or adsorb on free inorganic and organic surfaces. 

Bopp, R.F., Simpson, H.J., Olsen, C.R., Trier, R.M., andKostyk, N. Chlorinated hydrocarbons and radionuclide chronologies in sediments of the Hudson River and estuary, New York, Environ. Sci. TechnoL, 16(10) 666-676,1982. 

Inner estuaries main channel Yaquina and Alsea (Oregon, USA) Hudson tidal river (New York, USA) Bodden (Germany)... 

---