Browsing by Author "Gibs, Jacob"

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    Continuous Monitoring For Total Chlorophyll-A and Four Classes of Algae and Analysis of Water Samples For Dissolved Organic Carbon at Passaic River Below Two Bridges, NJ: Research Project Summary
    (Trenton, N.J. : New Jersey Department of Environmental Protection, Division of Science, Research and Environmental Health, 2016-03) Gibs, Jacob
    This project was a joint funding agreement between the NJ Department of Environmental Protection, Division of Science, Research, and Environmental Health; the USGS New Jersey Water Science Center; Passaic Valley Water Commission; North Jersey Water Supply Commission; and Rutgers University. This objective of this study was to test two new field-deployable technologies that together provide nutrient and dissolved organic carbon data along with classification of algae type by correlation to the chlorophyll responses. The BBE AlgaeGuard meter is a highly sensitive, submersible spectrofluorometer with automatic algae classification and chlorophyll analysis. The second sensor platform tested at the monitoring station was an S::SCAN unit. The S::SCAN Spectrolyzer is a miniature ultra-violet/visible light spectrophotometer that estimates the concentration of dissolved organic carbon and nitrate plus nitrite. This study was conducted at the Two Bridges USGS surface water monitoring station located in Wayne Township, Passaic County, NJ. Since two major drinking water purveyors withdraw raw water in the vicinity of this station, the location provides the opportunity to evaluate the ability to accurately measure continuous nitrate+nitrite levels, as well as assess beneficial and harmful algae blooms; two factors that impact the water treatment operations at both facilities. Concentrations of measured real-time data from the BBE and S::SCAN sensors calibrated well to the concentrations of lab-analyzed grab samples.
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    Occurrence of Antibiotic Compounds Found in the Water Column and Bottom Sediments from a Stream Receiving Two Wastewater Treatment Plant Effluents in Northern New Jersey: Research Project Summary
    (Trenton, N.J. : New Jersey Department of Environmental Protection, Division of Science, Research and Environmental Health, 2016-03) Gibs, Jacob
    An urban watershed in northern New Jersey was studied to determine the presence of antibiotic compounds above and below the discharges of two wastewater treatment plants (WWTP). Many antibiotic compounds are not completely removed by conventional wastewater treatment plants which results in these compounds entering receiving waters. The antibiotic compounds which enter waterways from WWTP discharges are assumed to be resistant to biologically mediated degradation.