Patricia W. Kirk

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Literature on the health aspects of the presence of heavy metals in water and wastewaters is reviewed and quality standards, criteria and legislation promulgated by the World Health Organisation, European Economic Community, U.S. Environmental Protection Agency and Government of the U.S.S.R. are assessed and compared. It is evident from the literature that(More)
The environmental importance of tropospheric polycyclic aromatic hydrocarbons (PAH) is reviewed. The impact of reducing lead on airborne PAH is indicated and the importance of monitoring both particulate and gaseous-phase PAH is demonstrated. A Brief description of a sampling regime performed from 1985 to 1987 is given. Sampling of 18 PAH was performed and(More)
The biodegradation of nitrilotriacetic acid (NTA), a synthetic replacement detergent builder, in the estuarine environment was examined by using a laboratory estuarine simulation. Two interdependent microcosms were used; each of five vessels was equilibrated with a saline gradient between 1.30 and 17.17%, with the final vessel subsequently being increased(More)
The Bellcore OS — ASSIST#8482; system provides automated assistance for the analysis of performance statistics reports in Operator Services Centers (OSCs) of the Bell Operating Companies. This system demonstrates the viability of knowledge-based systems technology in the Operator Services arena and illustrates the feasibility of a support tool for the(More)
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