Occupational groups various

Controllability -Employees reported sense of control in safety culture surveys -The extent to which persoimel perceive the organisation as supporting their work instead of hindering it -Average working hours per week of various occupational groups (NEG)... 

A number of attempts to a more systematic and consistent approach to quantitative occupational risk assessment have appeared in the hterature. A model has been developed to predict the frequency of occupational accidents in offshore oil and gas industry, based on direct, corporate and external factors, as proposed by Attwood et al. (2006). Quantified risk for various occupational groups in Sweden based on the number of accidents and relevant exposure has been calculated by Larsson and Forsblom (2005). A method has been proposed by Ivan et al. (2010) for risk assessment of several trades in the construction industry, based on estimating the overall frequency and severity from historical data of accidents in Hong Kong and their consequences regarding injuries, days lost and compensation cost. Fuzzy methods have been... 

The accident analysis presented up to this point has concentrated on individual characteristics of accidents related to persons, objects and work places. In order to arrive at more exact indications for preventive measures, it is necessary to ascertain the special work activities or individual types of work places, at which the involved occupational groups are especially liable to accidents. Such an analysis based on official accident records is possible for various types of elevated work places. The analysis simultaneously provides the reference data for the comparisons between objective risk data and subjective risk estimates, which will be described later. 

There are various industrial workplaces which present a significant risk of certain cancer diseases. This may be attributed to an unusually high exposure to PAH [17]. Furthermore, as highly exposed occupational groups, chimney sweeps, roadmen (pavement-tarring) and roofers (roof-tarring) are also under increased risk [23]. 

Occupational studies have demonstrated an enhanced frequency of bronchial cancer among various groups of Rn-222 progeny exposed underground miners, especially uranium miners. (Archer et al, 1976 Kunz et al 1978 Kunz et al 1975 Lundin et al, 1971 Muller et al, 1983. Sevc and Placek, 1973 Seve et al, 1976 Whittmore and Mo Millan 1983.)... 

Exposure Levels in Humans. The levels of cyanide and thiocyanate in various human tissues and body fluids of both control and occupationally exposed groups and of smokers and nonsmokers are available (see Sections 2.3.4, 2.6.1, and 5.5). The levels of these chemicals in humans consuming foods containing cyanogenic materials also are available. 

Exposure Levels in Humans. No data on disulfoton levels in various human tissues and body fluids of a control population, populations near hazardous waste sites, or occupationally exposed groups in the United States are available. The levels of disulfoton metabolites (DEP [0.05 ppm], DETP [0.04 ppm], DEPTh [0.008 ppm], dimethyl phosphate [0.04 ppm], dimethyl thiophosphate [0.180 ppm], and dimethyl phosphorothiolate [0.004 ppm]) in the urine of disulfoton formulators have been measured (Brokopp et al. 1981). Data on the levels of disulfoton and its metabolites in body tissues and fluids are needed to estimate the extent of exposure to disulfoton. 

Spodumen is a monoclinic pyroxene, space group C C2 c), with two not equivalent metal cation sites Ml and M2. The aluminum occupies the smaller Ml site, which is approximately octahedral (actual symmetry C2) with an average metal-oxygen distance of 1.92 A. The M2 site, occupied by Li, is also six-fold coordinated with an average metal-oxygen distance of 2.23 A. Both A1 and Li sites may be substitutionally replaced by ions of the transitional metals in various proportions. Both Mn " " and Cr " centers have been identified in luminescence spectra by steady-state spectroscopy (Tarashchan 1978 Walker et al. 1997). At room and lower temperatures only one emission band of Mn + occurs and the excitation spectra taken for the different wavelengths of the luminescence bands are always the same. So it is very probable that Mn + ions in the spodumen matrix present only in one site. The calculated values of 10D,j and B are consistent with the occupation of larger M2(Li) weak-field site. Mn + is mainly in Li-sites rather than Al-sites. 

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