1Pinal CountyPM10and PM2.5Nonattainment AreasUniversity of ArizonaMaricopa Agriculture ExtensionFebruary 9, 20122Welcome and Introductions3National Ambient AirQuality Standards4Federal Clean Air Act RequirementsNational Ambient Air Quality Standards (NAAQS)Protect public health (primary)Protect public welfare (secondary) including:• Protection against visibility impairment• Animals• Crops and vegetation• Buildings• Transportation hazardsMonitor ambient air qualityViolating standards triggers nonattainmentGovernor recommends nonattainment areaboundaries; EPA establishes later by rulePM2.5plan deadline – 36 months after designationPM10plan deadline – 18 months after redesignation5150 micrograms/cubic meter (μg/m3) 24-hour averageNo more than 3 exceedances in 3 yearsNonattainment redesignation based on 2006-2008certified monitoring dataDust storm readings don’t count if EPA concurs withexceptional and natural events findingsTwo types of monitorsContinuous provides hourly data 24/7Filter-based monitors usually once every 6thor 3rdday1987 24-hour PM10NAAQS6PM2.5NAAQS2006 24-hour Average StandardViolating the standard based on 2006-2008 monitoring data,but attaining based on more recent data35 μg/m33-year average of 98thpercentile values is less than or equalto 35 μg/m1997 Annual Average StandardNot violating15 μg/m33-year average of annual mean concentrations7Pinal County PM10andPM2.5Monitoring Data8Public Healthvs.Public Safety9Blowing Dust Related AccidentsADEQ’s mission is to protect andenhance public health, welfare and theenvironment in ArizonaThe Governor has directed the ArizonaDepartment of Transportation, theDepartment of Public Safety, and theArizona State Land Department toreview public safety hazards posed byblowing dust in Pinal County10Adverse effects on breathing and respiratory systems,damage to lung tissue, cancer, and premature deathProtection of at-risk populations: children, elderly,people with lung and heart disease, influenza, orasthma1 in 13 school-aged children has asthma per EPAProtection of healthy people active outdoorsPM10can also damage buildings, equipment, plantsand animals, and reduce visibilityHealth and Safety Impacts of PM1011Health and Safety Impacts of PM2.5Premature death from heart or lung diseaseFine particles aggravate heart and lung diseases -effects such as cardiovascular symptoms, cardiacarrhythmias, heart attacks, respiratory symptoms,asthma attacks, and bronchitisCan result in increased hospital admissions,emergency room visits, absences from school orwork, and restricted activity daysParticularly sensitive: people with heart or lungdisease, older adults, and children12“Severe Crosswinds” or “Blowing Sand Soil Dirt” Weather Related Crashes onEast Bound Interstate 102001-2010Source: Arizona Department of Transportation. Law enforcement responders determined the cause of the accidents.Number of Crashes grouped by 10-mile segment of I-10 (MP 0.00 - 391.26)13“Severe Crosswinds” or “Blowing Sand Soil Dirt” Weather Related Crashes onWest Bound Interstate 102001-2010Source: Arizona Department of Transportation. Law enforcement responders determined the cause of the accidents.Number of Crashes grouped by 10-mile segment of I-10 (MP 0.00 - 391.26)14Source: Arizona Department of Transportation15PM10and PM2.5PlanningArea Boundaries16PM2.5Nonattainment Area2006-2008 Cowtown monitor violated both the Annual and 24-hour PM2.5standardsEPA determined Annual PM2.5monitoring data collected 2006-2008 at the violating monitor ineligible for comparison to 1997Annual PM2.5standardsUnclassifiable/attainment for the Annual PM2.5Standard3/7/11 EPA designated a portion of the County asnonattainment for the 24-hour PM2.5standard.3/7/14 deadline to submit a SIP to EPAEPA may issue a Finding of Attainment and Clean Data Findingfor the 24-hour PM2.5standard based on monitoring data from2009-2011 to suspend requirements for:Attainment modeling demonstrationReasonable Further Progress demonstrationNonattainment area contingency measures17Pinal County PM2.5Nonattainment Area Boundaries18PM10Nonattainment Area Boundaries2006-2008 five air quality monitors violated the PM10NAAQS inPinal CountyEPA’s formal redesignation for PM10is pending and expected tobe published in the Federal Register by early springThe final boundaries are expected to be similar to thoseproposed earlier by EPA1920State Implementation Plan(SIP) Development Process21SIP RequirementsInclude:Emissions inventories before and after controlsCreditable and enforceable control measures• Implementation and maintenance schedulesModeling to demonstrate emissions reductionsfrom control measures will result in meeting RFPmilestones and attainment of the NAAQSContingency measures to be implemented if thenonattainment area fails to attain the NAAQS22More SIP RequirementsExceptional event technical demonstrations (highwinds, wildfires)Emissions from transportation related projectsconform with air quality plansReasonable Further Progress, unless SIPdemonstrates attainment within five years afterthe date of designation23Agency RolesADEQ –Facilitates communication among agencies andstakeholder groups; convenes stakeholder meetings; drafts theSIPs•Contractor –Evaluates all emissions sources; develops bottomup emissions inventories for PM10and PM2.5for stakeholderreview; executes modeling to demonstrate reasonable furtherprogress and attainment milestones will be metADOT –Assists with the development of the Motor VehiclesEmissions Budget and Transportation Conformity analysis;provides traffic counts for a variety of road typesCAAG–Assists ADOT with transportation planning activities inGila and Pinal Counties; develops population projections24Agency Roles ContinuedPCAQCD –Develops and enforces air quality rules and controlmeasures; operates monitoring network and ensuresmonitoring data meets CAA requirements; maintains records ofand drafts demonstrations for exceptional eventsAgBMP Committee –develops Agricultural Best ManagementPractices for PM10areas designated as nonattainment after6/1/2009; preempts further regulation of agricultural activitiesby county, city, town; recently adopted rules will apply tononattainment areaEPA –Provides SIP guidance as needed; reviews exceptionalevent demonstrations; courtesy reviews draft SIP;completeness finding within 6 months of SIP submittal and actson SIP within 18 months25The Role of StakeholdersAgBMP Committee and irrigation districtsState, city, town, and county officialsBuilders and contractorsOff-road enthusiastsPermitted emissions sourcesPrivate land owners and public land managersTribesPublic health advocatesEnvironmental organizationsPrivate citizensState and County agencies will collaborate with stakeholdersto develop control measures for the SIPs.Among thestakeholder groups will be:26Process StepsTechnical workgroup works with contractorRegular meetingsStakeholdersPeriodic meetingsSelect control strategyModel alternative control measuresPermanent and legally enforceable27Draft SIPEPA reviews for approvability issuesPublic comment periodPublic hearingSIP submittal demonstrating RACMSIP implementationImplementation trackingAttain standards!Process Steps Continued28SIP TimelinesADEQ must submit its PM2.5SIP by March 2014ADEQ would like to submit the PM2.5and PM10SIPsconcurrentlyIf redesignation for PM10occurs in March 2012, thePM10SIP will be due by October 201329Questions and Answers30Additional Information:ADEQ Web site:www.azdeq.gov/environ/air/plan/pmpinal.htmlPinal County AQCD Web sitehttp://pinalcountyaz.gov/Departments/AirQuality/Pages/Home.aspx31Address All Comments to:James WagnerArizona Department of Environmental QualityAir Quality Planning Section1110 W. Washington StreetPhoenix, AZ 85007JW3@azdeq.gov602-771-2388or 1-800-234-5677 then 771-2388