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[Comparative studies of airborne, cultivatable microorganisms at selected sites of waste managements, domestic animal husbandry and in the surrounding residential area].

During the last years, sampling of airborne microorganisms (including mesophilic bacteria, moulds, thermophilic bacteria and A. fumigatus) in waste disposal, recycling industry and control sampling locations in the urban and rural districts of Graz was conducted using Andersen 6-stage viable cascade impactors. In the present study additional sampling in livestock buildings has been conducted. Except mesophilic bacteria the emission in the area of waste disposal and recycling industry was significantly higher than in livestock buildings. In the surroundings of the livestock buildings the number of microorganisms was not increased, while the normal background level in the surroundings of the waste proceeding plants was reached from a distance of 150 to 300 meters.

Air Microbiology↗

Hazardous waste management program: phase I interim authorization for Nebraska--Environmental Protection Agency, region VII. Phase I interim authorization.

The State of Nebraska has applied for interim authorization of its hazardous waste program under Subtitle C of the Resource Conservation and Recovery Act and EPA guidelines for the approval of State hazardous waste programs [40 CFR Part 123]. EPA has determined that the State's program meets all applicable statutory and regulatory requirements and is granting Phase I interim authorization to Nebraska to operate in its jurisdiction a hazardous waste program in lieu of Phase I of the Federal hazardous waste program.

Environmental Health↗

Treatment, waste management and cost for removal of radioactivity from drinking water.

The processes (costs, efficiencies and reliability) used in treating drinking water for removal of radioactive contaminants and the disposal of wastes generated by the treatment processes are analyzed and discussed. The study was limited to U, Ra and Rn. Initially concepts of water and waste treatment in terms of their applicability to the drinking water industry were established. The alternative processes for treatment of Ra, U, Rn, water and sludges were described and evaluated, in terms of cost, efficiency, reliability, process control and feasibility.

Adsorption↗