Monitoring microbial pathogens and indicator microorganisms in water using the polymerase chain reaction and gene probe methods / Ronald M. Atlas ... [et al.] -- Allele-specific hybridization and polymerase chain reaction (PCR) in mutation analysis : the Salmonella typhimurium his paradigm / Thomas A. Cebula -- Mutational spectra of the four bay-region diol epoxides of benzo[c]phenanthrene and the drinking water mutagen, MX, determined with an improved set of E. coli lacZp-s mutants / Chuang Lu ... [et al.] -- Assessment of gene expression in the environment : quantitative mRNA analysis in contaminated soils / James T. Fleming and Gary S. Sayler -- Biological and biochemical evidence of strand-specific repair of DNA damage induced in human cells by («)-7[beta],8[alpha]-dihydroxy-9[alpha],10[alpha]-epoxy-7,8,9,10-tetrahydrobenzo[a]pyrene / Veronica M. Maher, Ruey-Hwa Chen, and J. Justin McCormick -- Molecular analysis of frameshift mutations induced by plant-activated 2-aminofluorene / Michael J. Plewa ... [et al.] -- Identification of sulfate-reducing bacteria by hydrogenase gene probes and reverse sample genome probing / G. Voordouw ... [et al.] -- The uses and abuses of immunological testing / Dennis K. Flaherty -- Human cytochromes P-450 and their roles in environmentally-based disease / Frank J. Gonzalez -- Important considerations in the ultratrace measurement of volatile organic compounds in blood / David L. Ashley ... [et al.] -- Applications of new HPLC/MS techniques in human biomonitoring / William M. Draper ... [et al.] -- Measurement of reductive dechlorination of pentachlorophenol by Actinomyces viscosus strain dechlorini by GC/MS techniques / Frank O. Bryant and Horace G. Cutler -- A versatile bioluminescent reporter system for organic pollutant bioavailability and biodegradation / A. Heitzer ... [et al.] -- Analytical method for biomonitoring of aniline in urine and comparison with the classical colorimetric method / Robert Orth ... [et al.] -- Biological monitoring of workers exposed to triazine herbicides. I. Determination of simazine and its metabolites in urine ; II. Presentation of a method for the determination of hexazinone and its main metabolites in urine of exposed forestry workers / J.G. Guillot, A. LeBlanc, O. Samuel and J.P. Weber.