Utilities coastal

Be, and °Be. Radioisotopes of hydrogen and carbon are of particular interest because they are major biological elements, and thus can be used as both chemical and biological tracers. Recently, particle reactive Be = 53.3 day) has been utilized as a valuable coastal tracer of short-term particle deposition and remobilization. ... 

Coastal and Shallow-water Fishes that Utilize Cypridina Luciferin... 

Pruszkowska et al. [135] described a simple and direct method for the determination of cadmium in coastal water utilizing a platform graphite furnace and Zeeman background correction. The furnace conditions are summarised in Table 5.1. These workers obtained a detection limit of 0.013 pg/1 in 12 pi samples, or about 0.16 pg cadmium in the coastal seawater sample. The characteristic integrated amount was 0.35 pg cadmium per 0.0044 A s. A matrix modifier containing di-ammonium hydrogen phosphate and nitric acid was used. Concentrations of cadmium in coastal seawater were calculated directly from a calibration curve. Standards contained sodium chloride and the same matrix modifier as the samples. No interference from the matrix was observed. 

Trans Coastal Marine Services (formerly Envirosystems, Inc.) and Louisiana State University (LSU) have developed several bioreactor systems to facihtate petroleum hydrocarbon mineralization and the bioremediation of organic wood preservatives utilizing an immobilized microbe bioreactor (IMBR) technology. These technologies can treat petroleum hydrocarbons, chlorinated solvents, pesticide-contaminated soils, and contaminated groundwater. 

The marine environment clearly holds an enormous amount of potential to provide new leads for the development of treatments for infectious disease and antimalarial compounds in particular. The identification of new structural classes active against the malaria parasite will provide new mechanisms of action and better treatments for resistant strains. Since most malaria-infected regions also possess coastal areas rich in diverse marine invertebrate life, marine natural products provide an opportunity for these areas to utilize endemic resources to combat this devastating disease. 

Joiris, C., Billen, G., Lancelot, C., Dard, M.H., Mommaerts, J.P., Bertels, A., Bosicart, M., Nijs, J. and Hecq, J.H., 1982. A budget of carbon cycling in the Belgian coastal zone relative roles of zooplankton, bacterioplankton and benthos in the utilization of primary production. Neth. J. Sea Res., 16 260-275. 

Tenore, K.R., 1981. Organic nitrogen and caloric content of detritus. 1. Utilization by the deposit-feeding polychaete Capitella capitata. Estuar. Coastal and Shelf Sci., 17 733-792. 

Williams, P. J. LeB., and C. S. Yentsch. 1976. An examination of photosynthetic production, excretion of photosynthetic products, and heterotrophic utilization of dissolved organic compounds with reference to results from a coastal subtropical sea. Marine Biology 35 31-40. 

Here we present one example to illustrate the utility of 15N for providing information about the source of dissolved organic nitrogen in a freshwater ecosystem. The 15N contents of fulvic acid fractions of different size varied slightly and were similar to the value for the 15N content of the synfulvic acid fraction in a eutrophic coastal pond in Antarctica (Table I) (Brown et al., 2002). Continuous production of mucilage by the chlorophyte population in the pond and diffusion of DOM from the sediments are the two main DOM sources these data suggest that the same source predominates for all of these fulvic acid fractions. 

Becquevort, S., T. Bouvier, C. Lancelot, G. Cauwet, G. Deliat, V. N. Egorov, and V. Popovichev. 2002. The seasonal modulation of organic matter utilization by bacteria in the Danube-Black Sea mixing zone. Estuarine, Coastal and Shelf Science 54 337—354. 

Middelboe, M., B. Nielsen, and M. Sondergaard. 1992. Bacterial utilization of dissolved organic carbon (DOC) in coastal waters — determination of growth yield. Archiv fur Hydrohiologie Beiheft Ergebnisse der Limnologie 37 51-61. 

Raymond, P. A., and J. E. Bauer. 2000. Bacterial utilization and transport of DOC in a temperate estuary Implications for export to the coastal ocean. Aquatic Microbial Ecology 22 1—12. 

Coastal utilities have been major consumers of products derived from imported crudes. East coast utility fuels have been based on Venezuelan and Middle East crudes while the West coast has obtained much of its fuel from Indonesia. There are a number of reasons why it would be difficult to convert these plants to coal firing. Auxiliary facilities such as storage areas, rail sidings, and unloading and conveying equipment are no longer in place to handle coal. It is even more significant that the land on which these facilities were located has been sold or used for other utility purposes. As a result, scrubbers could not be installed at these sites to allow for sulfur dioxide control. 

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