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The aim of the presented study was to determine the health status of workers occupationally exposed to moderate amounts of organic dust, employed in a modern hatchery with an effi cient ventilation system. A group of 32 hatchery workers was examined. As a reference group, 50 urban dwellers not exposed to any kind of organic dust were examined. All people were interviewed for the presence of work-related...
The present research assessed the treatment effi ciency of odorogenous pollutants in air from a hatchery hall vented on organic and organic-mineral beds of an enclosed-container biofi lter. In this study, the following media were used: organic medium containing compost and peat (OM); organic-mineral medium containing bentonite, compost and peat (BM); organic-mineral medium containing halloysite, compost...
The investigations were performed to determine the air gas pollutants in the tissues of polar foxes. The caged animals maintained in the pavilion system constituted the control group (20 animals), while the experimental group were constituted by the individuals born in enclosed spaces and transported to the farm after the raising time (12 animals). The chromatographic analyses were made on the samples...
This experiment examined the efficiency of biological removal of air contaminants performed with a prototype “open” biofilter. The biofilter bed composed the following components by weight: 35% fibrous peat, 35% sallow peat, 10% barley straw, composts from sewage plant and horse manure -10% each. With Waters` liquid chromatograph use there was determined a content of ammonia, nitrates, nitrites, sulphates,...
Research has been conducted to evaluate the effect of a large pig farm on the physical and chemical properties of river and groundwater within the close farm vicinity. A river "R" flows in 0.5-1 km distance of a farm border. River water was sampled at three following points: at farm border, sewage intake at decanter of a closed down treatment plant and outside the farm border. The groundwater...
The objective of this research was to evaluate bacteriological and parasitological pollution levels of soil, groundwater, surface water and river sediment in the vicinity of a pig farm. The microbiological examinations of soil and water environment within the pig farm area and around it showed considerable pollution with animal droppings and municipal sewage coming from a breeding farm and farm buildings...
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