Do Organochlorine Contaminants Modulate the Parasitic Infection Degree in Mediterranean Trout ()?

We investigated the occurrence of organochlorine pollutants (OCs) in the muscle of brown trout and evaluated their potential modulation of parasite infection. The toxicological risk for consumer health was assessed, too. Trout were collected from the Sila National Park (Calabria region, South of Italy).

Particle measurements of metal additive manufacturing to assess working occupational exposures: a comparative analysis of selective laser melting, laser metal deposition and hybrid laser metal deposition.

This paper presents the results of a measurement campaign for assessing the release of particles and the potential exposure of workers in metal additive manufacturing. The monitoring deals with three environments, i.e.

[Serum polychlorinated biphenyls in workers of a second-smelting steel mill].

In the steel industry polychlorodibenzodioxins (PCDD), polychlorinated dibenzofurans (PCDF) and polychlorinated biphenyls (PCBs) may be present deriving from the fusion of ferrous and non-ferrous scrap, as well as for the thermal decomposition of the plastic materials (thermoplastic and thermosetting resins) contained therein and not removed before melting at high temperatures. The aim of the study was to assess in 52 workers of a secondmelting steel plant the PCBs exposure deriving from the manual handling of ferrous scrap waste eventually contaminated. The population was divided by production department (scrap, casting and office).

Analytical method for the quantitative determination of urinary ethylenethiourea by liquid chromatography/electrospray ionization tandem mass spectrometry.

A direct, rapid and selective method for the quantitative determination of the ethylenethiourea (ETU) in human urine has been validated and is reported in the present study. It allows the accurate quantification of ETU in this complex matrix without the use of any internal standard as the sample cleanup is effective enough for the removal of interferences that could lead to ion suppression in the electrospray ionization (ESI) source. This simple and rapid purification system, based on the use of a Fluorosil phase of a BondElut column followed by a liquid-liquid extraction procedure, achieves mean extracted recoveries, assessed at three different concentrations (2.