28 Fenton’s reagent, a solution of hydrogen peroxide and ferrous iron catalyst, is used for an 29 in-situ chemical oxidation of organic contaminants. Sulfuric acid is commonly used to 30 create an acidic condition needed for catalytic oxidation. Fenton’s reaction often involves 31 pressure buildup and precipitation of reaction products, which can cause safety hazards 32 and diminish efficiency....

Organochlorines and heavy metals have bioaccumulated in Arctic wildlife, which is an important food source for the Inuit. In this study, we have developed a statistical model to describe the population distribution of contaminant exposure and the usual intake of the high-end contaminant consumers. Monte Carlo methods are used to account for variations due to seasonal dietary pattern and contami...

Food safety has attracted extensive attention around the world, and food-borne diseases have become one of the major threats to health. Staphylococcus aureus is a major food-borne pathogen worldwide and a frequent contaminant of foodstuffs. Staphylococcal enterotoxins (SEs) produced by some S. aureus strains will lead to staphylococcal food poisoning (SFP) outbreaks. The most common symptoms ca...

Hazard Analysis by Critical Control Points (HACCP) is a systematic approach to the identification, assessment, and control of hazards in the food chain. Effective HACCP requires the consideration of all chemical microbiological, and physical hazards. However, current procedures focus primarily on microbiological and physical hazards, while chemical aspects of HACCP have received relatively litt...

The contaminant detection process of a food product is an important stage of a modem food production factory. The automatic detection of bones in raw chicken breast meat is a major problem. This paper presents a fuzzy reasoning algorithm for post-processing the segmented images of dual-band X-ray images of raw chicken breast. The results show that bone detection rates are considerably improved ...

On 31 July 2003 BfR provided information on the occurrence of semicarbazide (SEM) as a contaminant in various foods. This was based on information from the European Food Safety Authority (EFSA). The common feature of these foods was that they were packaged in glass jars or bottles. Initial study results indicated a semicarbazide content of up to 15 μg/kg food. One possible source given for semi...

A problem of frequent interest in analyzing nonlinear ODE models of ecological systems is the location of equilibrium states and bifurcations. Interval-Newton techniques are explored for identifying, with certainty, all equilibrium states and all codimension-1 and codimension-2 bifurcations of interest within specified model parameter intervals. The methodology is applied to a tritrophic food c...

Lead, arsenic, cadmium, and methyl mercury are nonessential and potentially highly toxic metals. They may be found in minute and variable but measurable amounts in food, drinking water, and/or ambient air. Because each of the metals has been identified as a serious environmental contaminant in various parts of the world, much research effort has been devoted to them, especially during the past ...