Raw menhaden fish oil was developed for biomonitoring polycyclic aromatic hydrocarbons (PAHs) using fluorescence spectroscopy. Menhaden (Genus Brevoortia) were collected from Delaware Bay, NJ (DBNJ), James River, VA, Vermillion Bay, LA (VBLA) and Barataria Bay, LA (BBLA) in 2010 and/or 2011. Barataria Bay, LA received heavy oiling from the DeepWater Horizon (DWH) oil spill. Method development included determining optimal wavelengths for PAH detection, fish oil matrix interferences, and influence of solvent concentration on extraction. Results showed that some fish oils contained high molecular weight (HMW) PAH‐like compounds in addition to other fluorescent compounds such as albumin and vitamins A and E. None of these naturally occurring compounds interfered with detection of HMW PAHs. However, data suggested that the lipid component of fish oil was altering fluorescence spectra by supporting the formation of PAH excimers. For example, the most intense excitation wavelength for hydroxypyrene shifted from Ex285/Em430 to Ex340/Em430. Comparison of DWH crude oil and fish oil spectra indicated that some fish oils contained crude oil‐like PAHs. Using wavelengths of Ex360/Em430, fish oil concentrations were calculated as 3.92, 0.61 and 0.14 μg/g for one DBNJ sample, BBLA 2011 and VBLA 2011, respectively. Overall, these results supported using menhaden fish oil to track PAH exposures spatially and temporally. This article is protected by copyright. All rights reserved
Leakwise Oil-in-Water Detection and Monitoring Systems are being used in a variety of applications to address health and safety directives, environmental regulations, and economic necessity. Oil and fuel storage facilities worldwide have over 15 years of experience depending on these reliable systems. Read more about the ways Leakwise can be used to monitor and detect leaks in or near above ground storage tanks.
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Introduction
Discharge of hydrocarbons in industrial water is restricted by environmental authorities in most countries to a few parts per million (ppm). Environmental authorities currently monitor wastewater, stormwater, and cooling water discharges from industries that may contaminate public waters, sea, rivers, and lakes. Many companies cannot treat the whole quantity of water that is discharged from their premises into public water. This untreated water may carry hydrocarbons resulting from unnoticed accidenta...
Researchers, public health officials, regulators, and others have long been in search of a reliable diagnostic tool to identify and measure the presence of chemical substances, and their breakdown products, in human bodily fluids. The utility of such a tool is almost limitless, and has staggering implications for all participants in the chemical producer and user community.That tool, biomonitoring, is now available. Through biomonitoring, measurements of chemicals in human blood, urine, and serum can be taken...
Abstract
The paper presents the results obtained for zinc recovery from residual solution resulting from dimetridazol (1,2 dimethyl 5-nitro glyoxaline) fabrication (a drug for animal use) and its reuse in the process. The authors propose a flow-sheet for zinc recovery with efficiency higher than 99% like a complex compound which can be reintroduced in the process with good results. The mother liquor resulted after zinc separation contains 28-30% sodium nitrate and can be used in the treatment of wheat, potatoes...
Bioremediation is the method of choice to effectively clean up a small spill of hydrocarbons. In this case, five-hundred liters of BTEX has spilled from an above ground storage tank into a pasture that is located at the west edge of the Royal Roads University (RRU) grounds. The soil is classified as a Gleyed Eutric Brunisol based on recent laboratory analysis; it contains clay, but is fairly loose and porous for the upper meter, and then reaches an impermeable clay boundary (Burke, 1998). The dominant vegetation...
Sobering Results in the First Environmental-Rating of the Oil and Gas Industry
The first Environmental-Rating of thirteen international oil and gas companies did not produce a clear environmental leader. All of the companies rated were found to be in the bottom third of the rating scale that ranges from A+ to D-. A group of four companies leads the ranking list with a C in the Environmental-Rating. These are the Australian company Woodside Petroleum, the two British companies BG (formerly British Gas) and...
`The oceans are in trouble and so are we,` oceanographer Sylvia Earle, National Geographic explorer in residence and researcher for the Smithsonian, was quoted as saying in an article on the web by Seth Borenstein writing for the Philadelphia Inquirer and San Jose Mercury News Washington Bureaus. Citing a study by the Harvard Medical School`s Center for Health and the Global Environment covering 1976 to 1996, Borenstein reports a greater than fourfold increase in harmful algal blooms (74 to 329). `stranding of...
Executive Summary
This report summarizes the findings of an investigation by the minority staff of the House Government Reform Committee into fugitive emissions from oil refineries. The investigation was requested by Rep. Henry A. Waxman, the ranking member of the Committee on Government Reform. It finds that (1) oil refineries vastly underreport leaks from valves to federal and state regulators and that (2) these unreported fugitive emissions from oil refineries add millions of pounds of harmful pollutants to...
Abstract
The North Carolina Division of Air Quality (DAQ) was asked by the Occupational and Environmental Epidemiology Section (OEES) of the North Carolina Department of Health and Human Services to provide air monitoring information to aid in the assessment of potential human health risk from an ongoing landfill fire in Dare County. The Air Toxics Analytical Support Team (ATAST) arrived on site the evening of December 30, 1998. Air monitoring was conducted that evening and the following day for carbon monoxide,...
Background
Truck mechanical workshops use large quantities of oils. Over time, there is an inevitable build up of spillages to give the traditional image of a messy, dirty workshop environment. This is not desirable when working with diesel injection systems. A high level of cleanliness and precision is essential.
Several staff members of Rocklea Diesel Injection Service are also avid fishermen. They are aware that any oil spillage which leaks into the stormwater system eventually ends up in Moreton Bay...
Introduction
Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum emissions levels that are normally achievable through a combination of cleaner production and end-of-pipe treatment. The guidelines are designed to...
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Soils are inherently variable in their physical and chemical characteristics. Usually the variability is much greater vertically than horizontally, resulting from the variability in the...
Abstract
For over 15 years, membrane separation processes have been very effectively utilized as essential components of electrodeposition (ED) paint processes. ED is the accepted method of applying the undercoat paint layer to new automobiles and appliances. As cross-flow membrane and ED paint technologies mature, new applications combining the two have been developed. A major American automobile manufacturer now uses reverse osmosis (RO) to treat ultrafiltration (UF) permeate generated by an ED paint process,...
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