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This calculates the narcotic chronic water quality guideline using the equation and default values from Tillmanns et al 2024.

Usage

narcotic_cwqg(chemical)

Arguments

chemical

The chemical (a HAC or PAH) of interest

Value

the narcotic chronic water quality guideline value of the PAH in ug/L.

Details

The values used in the calculation are:

  • slope The slope in Equation 3 in Tillmanns et al 2024. The default value is -0.951.

  • HC5 The 5th percentile of the SSD of critical body burdens predicted to be hazardous for no more than 5% of the species. Default value is 3.14 umol/g, from Equation 2 in Tillmanns et al 2024.

  • dc_pah Chemical class correction (Δc) for PAHs, as reported in Tillmanns et al 2024. The default value is -0.659.

  • dc_hac Chemical class correction (Δc) for HACs, as reported in Tillmanns et al 2024. The default value is -0.398.

References

Tillmanns, A. R., McGrath, J. A., & Di Toro, D. M. (2024). International Water Quality Guidelines for Polycyclic Aromatic Hydrocarbons: Advances to Improve Jurisdictional Uptake of Guidelines Derived Using The Target Lipid Model. Environmental Toxicology and Chemistry, 43(4), 686-700.

Examples

narcotic_cwqg("anthracene")
#> [1] 8.954894