Daily Archives: January 14, 2020

PFOA/PFOS emerges as an election issue

In an election year political statements raising ‘hot button’ environmental issues like PFOA and PFOS are to be expected (e.g. click here). Ms. Dingell’s characterization of PFOA and PFOS are not based on science or even a proper understanding of environmental law.

The article below presents the only publicly available, independent peer-reviewed published paper examining the full implications of regulating of PFOA and PFOS in drinking water.

F.W. Pontius. Regulation of Perfluorooctanoic Acid (PFOA) and
Perfluorooctane Sulfonic Acid (PFOS) in Drinking
Water: A Comprehensive Review. Water 2019, 11, 2003; doi:10.3390/w11102003

Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS) are receiving global attention due to their persistence in the environment through wastewater effluent discharges and past improper industrial waste disposal. They are resistant to biological degradation and if present in wastewater are discharged into the environment. The US Environmental Protection Agency (USEPA) issued drinking water Health Advisories for PFOA and PFOS at 70 ng/L each and for the sum of the two. The need for an enforceable primary drinking water regulation under the Safe Drinking Water Act (SDWA) is currently being assessed. The USEPA faces stringent legal constraints and technical barriers to develop a primary drinking water regulation for PFOA and PFOS. This review synthesizes current knowledge providing a publicly available, comprehensive point of reference for researchers, water utilities, industry, and regulatory agencies to better understand and address cross-cutting issues associated with regulation of PFOA and PFOS  contamination of drinking water.

Fires are necessary for a healthy forest

The claims¬†(e.g. here) that the Australian bush fires indicate a global warming “tipping point” has been passed and the earth is doomed are complete nonsense. There have been much larger fires in Australia in the past (e.g. here, here¬†and here). Fires are a natural and necessary component in the life cycle of a forest.¬†