Jan A Krajewski

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Chemical and biological hazards and health effects of exposure to some selected agents on the workers of municipal wastewater treatment plants are reported. This issue has not as yet been thoroughly analyzed in Poland. The workers of wastewater treatment plants are exposed to: heavy metals (Pb, Cu, Zn, Cd, Cr, Ni), polycyclic aromatic hydrocarbons (PAH),(More)
The aim of the study was to assess the occupational exposure of workers employed in the municipal waste collection and management industry. Air samples were collected in the workers' breathing zone; two samples were collected parallely. The assessment concerned exposure to organic dust, endotoxins, bacteria and fungi. The questionnaire data showed that(More)
The assessment of the exposure to bioaerosols among workers engaged in the collection and disposal of municipal waste is presented. The workers were divided into the following groups, depending on the job performed: waste collectors (loaders, drivers), composting plant workers (heavy equipment operators, waste site workers), sorters (heavy equipment(More)
The author presents sources of the greatest chemical hazards to the environment in Poland, among which industry and transport occupy the first two places. The availability of data and information on chemical hazards to the environment and the human health are discussed. Legislation, organisation and competences of institutions designed to prevent and(More)
The Directive 93/67/EEC on the principles for assessment of health and environmental risks associated with the traffic of newly introduced chemicals was discussed. The Directive applies to so called new chemicals which require notification in countries of the European Community. Risk assessment is essential for risk management which comprises control,(More)
This paper presents a review of the current literature concerning health impact of communal waste in people occupationally involved in waste collection and disposal. No studies have been as yet carried out in this regard. This review indicates that the main hazards for workers collecting and disposing communal wastes comprise organic dust with adsorbed(More)
BACKGROUND The purpose of the study was to evaluate exposure to biological and chemical agents in a sewage treatment plant. MATERIALS AND METHODS Sampling was carried out in the summer and wintertime at the morning workshift. Ninety-nine sewage workers taking part in the study were divided into four occupational subgroups: mechanical treatment, biological(More)
The paper presents the components of the problem of chemical safety as well as the criteria for setting priorities for chemical hazard control. Chemical safety comprises risk identification, estimation, evaluation, and management. The first three issues constitute an integral part known as risk assessment. Their implementation allows to determine the(More)
The genesis of the vast problem--of cognitive and applicatory nature--referred to as chemical safety, has been presented. Chemical safety studies involve all possible sources of man's exposure to chemical compounds, which is aimed at an effective control of adverse health effects. The authors have set up a definition according to which chemical safety(More)