Air Quality Advisory
Air Quality Advisory for smoke issued for Bay Area through Tuesday. See our Wildfire Safety Tips web page.

Stan Hayes

Stan Hayes

Principal, Environ

Stan Hayes is an engineer with more than 30 years of experience in environmental science and engineering, with particular emphasis on air impact analysis, including emissions estimation, air quality modeling, strategic and regulatory policy analysis, compliance assessment, exposure and health risk assessment, and air monitoring and meteorological data analysis. 

He is the primary author of more than 60 scientific papers and presentations, as well as several hundred technical reports on air-related subjects. He has provided litigation support in cases involving a broad range of industrial facilities and has provided expert testimony in court and before federal, state, and local regulatory agencies. 

He is a Fellow of the Air & Waste Management Association, for whom he has chaired or co-chaired national and international specialty conferences on climate change, greenhouse gas reporting, and homeland security. He is a member and past chair of the advisory council of the Bay Area Air Quality Management District. Upon invitation, he has given scientific briefings to members of the California legislature and political leaders elsewhere. 

Stan earned an M.S. in aeronautics and astronautics and a B.S. in mechanical engineering, both from Stanford University.

Marcy Hiratzka
Clerk of the Boards, Executive & Administrative Resources


Vanessa Johnson
Manager, Executive & Administrative Resources


Executive Office


Spare the Air Status
Spare the Air Status
  • Monday,

    No Spare the Air Alert in Effect

Last Updated: 1/6/2016