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    DUST PALLIATIVE MEAN PARTICLE RESIDENCE TIME CALCULATOR

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    1810_CSET_final-report_Dustfall.pdf
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    Author
    Metzgar, Jonathan
    Keyword
    dust control
    rural transportation
    Statistical Analysis
    air quality
    dirt road
    Metadata
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    URI
    http://hdl.handle.net/11122/11848
    Abstract
    Previous research efforts at UAF have established that dust palliative performance may be compared using a calculation called the mean particle residence time (tau, or MPRT). The MPRT value is computed using linear regression techniques to determine the time when the dust palliative loses its effectiveness. A technician tests the palliative using a dustfall column and a nephelometer to measure the concentration of PM10 over time. The technician needs to manually process this raw data with an Excel spreadsheet making dust palliative MPRT reports time-consuming and prone to error. Finally, the certifying technician prints and files the report for future reference which limits future dissemination. We developed a web-based calculator, called UAFDUST, to automate the process of producing the MPRT report. UAFDUST combines a web app front end using Google's Angular library with a PHP and SQL database backend. This database enables a laboratory to record metadata about the dust palliative including the dustfall column testing date and technician, certification date, and certifying technician. The app calculates the MPRT and produces accompanying linear regression plots. The UAFDUST app stores dust palliative MPRT tests in a public database and trained laboratory technicians may contribute new data.
    Date
    2020-12-31
    Type
    Technical Report
    Collections
    CSET Project Reports

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