The EPA is seeking to lower the annual PM 2.5 permit standard to 12-13 ppm and is accepting comments until August 31st.
http://www.gpo.gov/fdsys/pkg/FR-2012-06-29/pdf/2012-15017.pdf
I have not had a chance to read the entire 167 page tome, but they do not seem to have mentioned our favorite study (Case report: Supraventricular Arrhythmia Following Exposure to Concentrated Ambient Air Pollution Particles) anywhere. Perhaps Milloy’s persistence did have some benefit after all.
