Bisphenol A

Low reliability guideline values are typically not adequate to assess water quality, but can be used as interim values until more reliable values are derived. If used as interim values, they should always be used in conjunction with other lines of evidence. See Application of default guideline values for more information.

Some of the DGVs may be below current analytical limits of reporting for BPA. However, the available toxicity data indicate that toxic effects can occur below the current limits of reporting. See Accounting for local conditions for guidance on what to do if DGVs are below analytical detection limits.

Comparison of the DGVs with the available toxicity data indicated that the 95%, 90% and 80% species protection DGVs may not adequately protect some species. If there are concerns that the DGV for a specific ecosystem condition and associated level of protection may not offer sufficient protection for key species in the water body of interest, a conservative application of the DGVs may be warranted. For example, the 99% species protection DGV for BPA could be applied to a slightly-to-moderately disturbed ecosystem.

These DGVs and the information in the corresponding DGVs technical brief for this toxicant should be used in accordance with the detailed guidance provided on the Australian and New Zealand Guidelines for Fresh and Marine Water Quality website.