Air Quality Profile of CaliforniaAir Quality Profile of CaliforniaNational Association of Clean Air National Association of Clean Air

AgenciesAgenciesSpring Membership MeetingSpring Membership Meeting

May 17, 2010May 17, 2010

James M. GoldsteneJames M. GoldsteneExecutive OfficerExecutive Officer

California Environmental Protection Agency

AIR RESOURCES BOARD

22

California’s Air Quality HistoryCalifornia’s Air Quality History

Built on science and Built on science and technologytechnology

Significant progress Significant progress towards existing towards existing standardsstandards

Many valuable lessons Many valuable lessons learnedlearned

These lessons (and more) These lessons (and more) will help in meeting new will help in meeting new challengeschallenges

33

California’s SuccessfulCalifornia’s SuccessfulRegulatory ProgramsRegulatory Programs

44

Potential 8-Hour Ozone Nonattainment Areas Potential 8-Hour Ozone Nonattainment Areas in California under a 0.065 ppm NAAQSin California under a 0.065 ppm NAAQS

Over 95% of Over 95% of Californians live in Californians live in areas that are likely to areas that are likely to be nonattainment for be nonattainment for the new standardthe new standard

55

Air Quality is ImprovingAir Quality is Improving

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

0.20

1990

1995

2000

2005

8-H

our

Ozo

ne D

esig

n V

alue

, ppm

3-year average 1997 Standard Proposed Standard

0.085 ppm Standard

0.065 ppm Midrange Proposal

but standards are becoming more stringent

66

Diesel Risk ReductionDiesel Risk Reduction

77

Climate Protection: New Challenges Climate Protection: New Challenges and Opportunitiesand Opportunities

ARB is lead agencyARB is lead agency Requires new regulatory Requires new regulatory

approachesapproaches Fuels economic recovery Fuels economic recovery

and growthand growth Contributes to criteria Contributes to criteria

pollutant reduction effortspollutant reduction efforts

88

Climate Protection: Political Climate Protection: Political UncertaintiesUncertainties

State legislative challengesState legislative challenges

Ballot initiativesBallot initiatives

Campaign platformsCampaign platforms

Federal preemption potentialFederal preemption potential