VALLEY AIR OFFICIALS SEE OBSTACLES IN NEW PM, OZONE GOALS

State and valley air officials expressed concern this week over meeting their own recently unveiled and ambitious particulate matter (PM) and ozone reduction goals. The regulators said reaching these goals is necessary for the valley to achieve federal attainment status in the coming years. Reductions in PM and ozone are key to cleaning up the air in the agriculturally dominated central valley, where these emissions are abundant. The Air Resources Board and the San Joaquin Valley air district May 17...