The article presents the results of a study of the toxicity of fire-resistant turbine oil «Turbomas «, a derivative of diphenyl-(n-tert-butylphenyl phosphate). According to toxicity parameters, «Turbomas» oil is characterized as a low-toxic compound, does not have neuroparalytic action, exhibits mild cumulative properties, does not irritate the skin and mucous membranes, penetrates intact skin,
The paper presents the results of a study on the possibility of toxic effects developing in contact with the antitumor drug – lysomustine - to assess the health risk in the manufacture of the finished dosage form and its use. The work was performed on 40 outbred rats, 40 guinea pigs and 114 outbred mice. The experimental study has showed that lysomustine does not irritate intact skin, is not a potential allergen, has no skin-resorptive effect, does not cause reproductive disorders. The drug reveales mutagenic properties inherent in many cytostatics, representatives of the class of N-nitrosoalkylureas. The research results allow to conclude that the presence of the drug in the air of industrial premises and on the skin of workers in its manufacture and use of the finished dosage form is unacceptable.
Introduction. Macromycetes include mercury compounds in their metabolism processes. The method for assessing the contamination of the soil layer (topsoil) by mercury by estimating the mercury content in the mushrooms is accessible and sufficiently informative. Mercury is a persistent inorganic ecotoxicant, it enters the human body from the environment. This process requires constant monitoring of the content of this hazardous metal in the environment and the in biomaterials of the human organism. Material and methods. The object of the study was selected bracket macromycetes growing on open soil areas: lawns, boulevards, parks, squares, etc. There were studied representatives from the fungal families as follows: Agaricacea, Boletaceae, Russu-laceae, Coprinaceae. Mushrooms were collected in the stage of sporulation, in the spring-summer-autumn period from 2002 to 2017. The determination of mercury in fungi was performed by atomic absorption method on specialized mercury analyzers of the “Julia” series (detection limit of 1 ng/g, the error of the method is not more than 15%). Mercury content in hair was determined in 1153 St. Petersburg residents aged from 0 to 80 years using atomic emission and mass spectrometry methods with inductively coupled argon plasma on devices Elan 9000 (Perkin Elmer, USA) and Optima 2000 V (Perkin Elmer, USA). Results. The results of the analysis of mushrooms collected in 2017 on one of the green streets of the industrial district of Saint-Petersburg demonstrate a high degree of mercury contamination of the megapolis. Mushrooms (Cinereus comatus) were collected at three locations of Alameda, separated by approximately 100 m, and were analyzed for the content of mercury in them. The following values of mercury in mushrooms were got is a 0.61 mg/kg, 0.83 mg/kg and 0.35 mg/kg. The hair of 1153 inhabitants of St.-Petersburg has been analyzed for mercury content. The highest concentrations of mercury have been established to be set at working population aged 18-64 years. This fact can be explained by the professional activities associated with the contact with mercury and active way of life, particularly with greater frequency of the use in the diet of mushrooms and other products, being potential sources of mercury. Discussion. The performed studies show the mercury concentration to be not only generalized but also stable. The pollution of the territory of St. Petersburg is little different from the pollution of the territories of other cities, where the mercury content in mushrooms is also found to be high in comparison with the permissible level. Conclusion. The obtained data indicate a high stable contamination of the territory of St. Petersburg and its nearest suburbs with mercury. Mercury and its compounds in environmental objects (mushrooms) can present the real danger to the health of the population, therefore there is a need for non-invasive monitoring of the content of mercury in biomaterials of the human organism and environmental objects.
An examination was performed of 50 employees at an enterprise where they were in professional contact with beryllium. In most workers, it was detected an increase of interleukine-8, interferon- , growing level of immunoglobulin E and circulating immune complexes. It was shown that the contact with beryllium compounds leads to the interferon- level growth only in women. In men, alterations are identified in the direction of increased concentrations of common immunoglobulin E and circulating immune complexes.
The paper presents the results of assessing the toxicity and danger of the development of neuroparalytic effect of fire-resistant turbine oils «Turbomas», «T-94» and «T-95» based on triaryl phosphates. According to the toxicity parameters, the studied oils are low-toxic substances, exhibit weakly expressed cumulative properties, do not irritate the skin and mucous membranes, penetrate through intact skin, and increase the activity of microsomal enzymes, when injected into the stomach and abdominal cavity. The study of the neuroparalytic action of oils «Turbomas», «T-94» and «T-95» did not reveal the presence of clinical and morphological signs of disorders of the neuromuscular apparatus in animals, which makes it possible to exclude the possibility of neuroparalytic action in persons in contact with the studied oils.
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