In Association of Irritated Residents v. San Joaquin Valley Unified Air Pollution Control Dist. (2008) 168 Cal.App.4th 535, the court invalidated a regulation concerning emissions from agricultural sources because there had been no assessment of its impact on public health, as required by statute. (Id. at pp. 540, 542-549.) The decision notes that the lack of a health assessment deprived the public of information that was necessary for it to "persuade and monitor government through the democratic process." (Id. at p. 548.)