By Jerry M. Neff

ISBN-10: 0080437168

ISBN-13: 9780080437163

Huge volumes of produced water are generated and discharged to the coastal and ocean waters around the globe from offshore oil and fuel construction amenities. there's main issue that the chemical compounds within the produced water may possibly damage marine ecosystems. This booklet summarizes the bioavailability and marine ecotoxicology of steel and natural contaminants that could take place in oil good produced water at concentrations considerably larger than these in ambient seawater. The contaminants of outrage comprise arsenic, barium, cadmium, chromium, copper, lead, mercury, radium isotopes, zinc, monocyclic fragrant hydrocarbons, polycyclic fragrant hydrocarbons, phenols, and bis(2-ethylhexyl)phthalate.The first a part of the publication is a close dialogue of the chemical composition of produced water from offshore oil wells all over the world and its fates following discharge to the sea. the rest chapters of the e-book summarize the present medical literature at the assets and distributions within the ocean of every of the contaminants of shock and their bioaccumulation and toxicity to marine organisms.This ebook might be of price to: environmental scientists within the oil and gasoline undefined; marine toxicologists and ecological probability assessors in academia, govt, and undefined; executive regulatory businesses all for marine environmental protection.The booklet advances the idea that bioavailability evaluate needs to be integrated in all ecological possibility tests and different environmental checks of chemical contaminants in marine and freshwater ecosystems.

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Extra info for Bioaccumulation in marine organisms: effect of contaminants from oil well produced water

Sample text

1992) found no relationship between concentrations of total petroleum hydrocarbons or specific hydrocarbon classes in produced waters from the North Sea and the toxicity of the produced waters to marine organisms. Biodegradation of the produced waters resulted in a loss of volatile hydrocarbons, organic acids, and some phenols and 34 Bioaccumulation in Marine Organisms reduced the toxicity of the produced waters; these results suggest that these volatile compounds may have contributed to the toxicity of the produced waters.

Although many of these chemicals are oil soluble and remain with the oil following oilwater separation, some are sufficiently water-soluble that a fraction not consumed in oil and water treatment remains with the produced water and is discharged with it to the ocean. Some of the additives or treatment chemicals that are discharged to the ocean in produced water are toxic to freshwater and marine organisms and may contribute to the toxicity of the produced water during its dilution and degradation in the receiving waters.

Concentrations in biodegraded produced water are normalized to full-strength produced water. Concentrations are /lg/L. Adapted from Strgmgren et al. (1995). Fraction Field 1 Raw Biodeg. Field 2 Raw Biodeg. Field 3 Raw Biodeg. 1 Specific Chemicals Naphthalenes BTEX Phenanthrenes Dibenzothiophenes Other PAHs declines. There was considerable variability among the three produced waters in relative rates of loss of different organic chemicals. The reason for these differences is unclear. Organic particles in the produced water may affect the rates of loss of organic constituents of the produced water by evaporation and degradation.

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Bioaccumulation in marine organisms: effect of contaminants from oil well produced water by Jerry M. Neff

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