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Calculate the narcotic benchmark (acute) concentration for a PAH or HAC using the Target Lipid Model (TLM)

Source: R/ptlm.R
narcotic_benchmark.Rd

This calculates the acute water quality benchmark using the equation and default values from Tillmanns et al 2024.

Usage

narcotic_benchmark(chemical)

Arguments

chemical

The chemical (a HAC or PAH) of interest

Value

the narcotic benchmark value of the PAH in ug/L.

Details

The values used in the calculation are:

  • slope The slope in Equation 2 in Tillmanns et al 2024. The default value is -0.922.

  • 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 9.7 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 -0.420.

  • dc_hac Chemical class correction (Δc) for HACs, as reported in Tillmanns et al 2024. The default value is -0.467.

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_benchmark("anthracene")
#> [1] 64.12872