"2009 Huston - Guidelines for computing summary statistics for data-sets containing non-detects"
"https://bvcentre.ca/files/research_reports/08-03GuidanceDocument.pdf"
This dataset was provided by the British Columbia Ministry of Environment. It contains information on orthophosphate concentrations taken at the Thompson River from Savona. It set contains four variables: Date, which is the date of the measurement taken; Less than indicates whether a measurement is below the detection limit; concentration is the level of orthophosphate observed at each date; and Censored also indicates whether an observation is below the detection limit or not.