Changes in the microbial quality of nonpotable reclaimed water distribution systems in seven metropolitan areas of the southwestern United States were investigated by performing pathogen monitoring and bacterial growth. Water samples were collected from tertiary-treated effluents at point of entry and point of use in the distribution systems. The samples were analyzed for Cryptosporidium oocyst...

Continuous-flow microwave heating has potential in aseptic processing of various food products, including purees from sweetpotatoes and other vegetables. Establishing the feasibility of a new processing technology for achieving commercial sterility requires evaluating microbial inactivation. This study aimed to assess the feasibility of using commercially available plastic pouches of bioindicat...

The impact of secondary succession of grassland communities towards a Norway spruce forest on soil microbial community was studied on a belt transect established in the Pol’anaMts., Central Europe. Data on understory vegetation, light availability, soil properties and microbial activity were collected on 147 plots distributed over regular grid. Moreover, distributions of functional groups of mi...

Soil microbial communities are structured by biogeochemical processes that occur at many different spatial scales, which makes soil sampling difficult. Because soil microbial communities are important in nutrient cycling and soil fertility, it is important to understand how microbial communities function within the heterogeneous soil landscape. In this study, a self-organizing map was used to d...

Without biomarkers modern healthcare would hardly exist. These measurable biological indicators allow physicians to assess the health state of their patients, diagnose conditions and predict disease risks. Over the last decade the highly dynamic field of gut microbiota research has made two essential discoveries: Firstly, the gut microbiota can be regarded as an organ in itself exerting such cr...

The impact of rainwater on the microbial quality of a tropical freshwater reservoir through atmospheric wet deposition of microorganisms was studied for the first time. Reservoir water samples were collected at four different sampling points and rainwater samples were collected in the immediate vicinity of the reservoir sites for a period of four months (January to April, 2012) during the North...

Background and Disclaimer The USEPA is revising the Total Coliform Rule (TCR) and is considering new possible distribution system requirements as part of these revisions. As part of this process, the USEPA is publishing a series of issue papers to present available information on topics relevant to possible TCR revisions. This paper was developed as part of that effort. The objectives of the is...