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The paper presents the methods for reducing harmful aerosols from galvanic baths polluting the environment under conditions when air flow helps in forming an acoustic field above the bath. The findings show that the level of air humidy is the lowest when aerosols are removed with the help of a side exhauster. Side effects on acoustic coagulation may occur. Aerosol coagulates when elevated above the liquid and returns to liquid not dispersed in the environment. The article introduces active suckers in accordance to their form and effectiveness collecting pollutants. The dependence of humidity on temperature is analyzed under the impact of external factors such as sucking, blowing and sucking or blowing, sucking and an acoustic field. The paper also discusses data on the dependence of sound pressure and looks at the level of frequency distribution. [ABSTRACT FROM AUTHOR]

Waste is generally accepted as any materials and objects that a holder discards, wants to discard or is required to be discarded. The article deals with the smell of prefabricated containers for household waste produced under normal domestic activities. The paper discusses the advantages and disadvantages of open, shallow and underground Molok containers, installation options and geometric parameters. Research has been conducted referring to air samples taken from three open, three shallow and three underground Molok containers at an outside temperature of 0 °C and depending on the replenishment of containers. The performed analysis has shown that the strongest smell of household waste is detected from completely replenished containers. Open containers have a distinctive feature of releasing a strong smell - in one of those, the odour strength of 119 OUE/m³ has been determined. [ABSTRACT FROM AUTHOR]

The article analyzes the environmental impact of shipping and air pollution caused by ships. The paper presents the development of regulations on air pollution caused by ships and describes the efficiency of methods for reducing emissions. [ABSTRACT FROM AUTHOR]