Report Description

• To ensure accurate comparisons, wastewater data is normalized to account for variations in flow rate, human input, and population size.
• Following StatsCan practices, data is normalized by flow rate and population, reported in mg/day per 1000 people using the formula:
  • mg/day/1000 people = substance concentration (mg/L) × flow rate (L/day) / population × 1000 people
    
  • This normalization method, which adjusts for population and flow rate, is referred to as “popflow.”
• To enhance the accuracy of the data, additional normalization methods are applied using the following analytes:
  • Caffeine
  • Cotinine
  • Creatinine
  • Pepper mild mottle virus (PMMoV)
• A sample calculation using these additional normalizers is as follows:
  • mg/day/1000 people = substance concentration (mg/L) / normalization analyte concentration (mg/L) × flow rate (L/day) / population × 1000 people

Amphetamines