Suicides of polish sailors as one of the reasons for causalities on marine ships – research review (1)
dr MACIEJ KIJOWSKI
Seaman’s work on the sea-going ship gives occasion to number of negative circumstances for physical and psychical spheres of his life. Environmental disturbances, impossibility of abandonment of a ship, separation with family or friends make people of the sea one of professional group of highest both risk and percentage of suicides. The author pays special attention to social importance of seamen’s suicides that is connected with their circumstances, quantity and unexpectedly high percentage in total amount of seamen’s deaths at work. A value of this paper is also reminder of a term ‘calenture’, almost forgotten and unknown in contemporary scientific literature, probably connected with the seamen’s inclination to suicide. The article is based on analysis of committed suicides, as well as hazy results of researches over them.
DOI: 10.5604/01.3001.0014.7488
The use of optic and gravimetric methods relevant in aerosol concentration measurements
dr PRZEMYSŁAW OBERBEK, dr inż. SZYMON JAKUBIAK
According to the data of the Statistics Poland on employees exposed to the risks arising from work environment at the end of 2019, the second most frequent harmful factor was dust, to which 50.4 thousand people were exposed (15.9%).
The assessment of exposure to dust in the work environment consists in performing gravimetric measurements of concentrations at workstations for the identified dust types, determining the dust exposure indicators and comparing the obtained exposure indicator values with the values of the maximum allowable dust concentrations. The disadvantage of the gravimetric method is the lack of information about changes in concentration over time, susceptibility to additional emission sources, long time needed to obtain the result and the inability to conduct continuous monitoring.
Dust concentration meters presenting real-time or near to real-time measurement data are finding more and more applications in monitoring of the external environment and working environment. Small low-cost sensors are already produced on a large scale, which can be used to produce relatively accurate environmental meters, as well as stationary and mobile sensor networks. Such devices are also not without flaws, but they can provide important support for the gravimetric assessment of dust concentration at workstations.
DOI: 10.5604/01.3001.0014.7490
Dimensional allowances and allowances for human anthropometric measures resulting from the use of personal protective equipment vs ergonomic work environment
dr inż. JOANNA SZKUDLAREK, dr inż. GRZEGORZ OWCZAREK
The article discusses the issue of changing external dimensions describing the silhouette of people, related to its equipment with personal protective equipment. Changes in these dimensions were defined as allowances for human anthropometric measures and dimensional allowances resulting from the use of personal protective equipment. Dimensional allowances and allowances for anthropometric measures have been defined and their importance in shaping the ergonomic work environment has been showed.
DOI: 10.5604/01.3001.0014.7491
