Planificación Comunitaria y Regional/
Servicios de datos
Pacto de acción temprana
Descripción general del programa Unifour EAC
El 17 de diciembre de 2004, el Departamento de Medio Ambiente y Recursos Naturales de Carolina del Norte (NCDENR), División de Calidad del Aire (NCDAQ), presentó a la Agencia de Protección Ambiental de los Estados Unidos (USEPA) el Estándar Nacional de Calidad del Aire Ambiental de ozono de 8 horas de Carolina del Norte ( NAAQS) demostración de logros para regiones designadas como áreas del Pacto de Acción Temprana (EAC). Las áreas EAC en Carolina del Norte incluyen el área EAC del condado de Cumberland; el área de Mountain EAC (condados de Buncombe, Haywood y Madison); el área Triad EAC (condados de Alamance, Caswell, Davidson, Davie, Forsyth, Guilford, Randolph, Rockingham, Stokes, Surry y Yadkin); y el área de Unifour EAC (condados de Alexander, Burke, Caldwell y Catawba).
Aunque el área fue designada como "incumplimiento", el condado de Catawba y todas las demás jurisdicciones gubernamentales, trabajando bajo la estructura del Consejo de Gobiernos de Western Piedmont (WPCOG), formaron un Comité de Calidad del Aire de Unifour (UAQC), que ha tomado medidas proactivas. para informar al público sobre los niveles de ozono e instruir a la comunidad sobre los métodos para reducir el problema. La medida más significativa e importante fue entrar en un Pacto de Acción Temprana (EAC ), que es un acuerdo firmado por la EPA, DENR y todos los gobiernos locales de Unifour. El documento formal establece un medio para que Unifour completo cumpla con los estándares federales de ozono de la EPA a un ritmo acelerado. until December 2007. The deferment was conditional upon no milestone being missed by local governments. If un requisito de EAC no se cumple a tiempo, las penalizaciones surten efecto inmediatamente.
El Pacto de acción temprana de Unifour (EAC) ilustra los esfuerzos que se están realizando en Unifour para reducir la formación de contaminación por ozono a nivel del suelo. Sirve para "facilitar la autoevaluación y la comunicación con la EPA, el NCDENR, las partes interesadas y el público" con respecto al programa EAC y para promover el objetivo del programa de lograr un aire más limpio más rápido en la región de Unifour._cc781905-5cde-3194-bb3b -136bad5cf58d_ Documenta el progreso del área con respecto a la implementación de medidas de control local y proporciona información específica identificando la agencia o departamento gubernamental responsable de la implementación de cada medida.
Las estrategias locales de reducción de emisiones se adoptaron e implementaron en función de su idoneidad para abordar la contaminación por ozono desde tres enfoques principales: educación/concientización, transporte y actividades de uso. -136bad5cf58d_there have been widespread efforts towards educating the public and raising awareness about air quality while also suggesting practical methods individuals can use to help improve the region's calidad del aire ambiente. Las presentaciones para niños en edad escolar y funcionarios electos, así como una campaña mediática sostenida centrada en el ozono, han sido la base del programa de educación/divulgación. Los periódicos locales y regionales, la televisión y la radio, y una creciente presencia en Internet, también han sido útiles para concienciar a los residentes de Unifour sobre las condiciones del ozono y la calidad del aire.
Medidas de Control Local Implementadas en la Unifour
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Ampliar el programa de Inspección y Mantenimiento de vehículos de pasajeros. Condado de Catawba comenzó el 1 de julio de 2003; Los condados de Burke y Caldwell comenzaron el 1 de julio de 2005. Autoridad y responsabilidad: NCDMV.
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Se implementó un nuevo sistema de tránsito regional. El Greenway Transit System combinó cuatro (4) proveedores individuales en un sistema de tránsito de varios condados el 1 de julio de 2008. _cc781905-5cde-3194-bb3b-136d_bad5cfAll of los vehículos diésel de la flota utilizan combustible biodiésel y se ha encargado un vehículo híbrido.
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Promoción de Semanas Laborales Comprimidas y Flex-time. Los diez miembros acordaron promover esta medida donde sea práctico, que se estima que reduce el NOx en 1.3 toneladas/año. Autoridad y responsabilidad: Miembros locales de EAC.
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Desarrollar Plan Regional para Ciclistas y Peatones. Se ha estimado que reduce el NOx en 1,6 toneladas/año y los COV en 2 toneladas/año. Miembros de Greater Hickory MPO/EAC local.
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Prohibición de quema al aire libre. La Comisión de Gestión Ambiental de Carolina del Norte aprobó una nueva regla que prohíbe la quema al aire libre en los "Días de Acción de Calidad del Aire" cuando el AQI es Código Naranja o superior. Autoridad y responsabilidad: NCDAQ.
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Planes de energía de ciudades y condados. Los diez miembros locales de EAC han desarrollado y adoptado un plan de conservación de energía que ordena a los departamentos de la ciudad y del condado que reduzcan el consumo de energía y conserven los recursos naturales en un esfuerzo por reducir las emisiones de las EGU. Autoridad y responsabilidad: Miembros locales de EAC.
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Programa de Vehículos de Combustibles Alternativos y Ciudades Limpias. La UAQC es una parte interesada central en la Coalición de Combustibles Limpios de Centralina y todos los miembros de la EAC están comprometidos con la búsqueda y el uso de tecnologías de combustibles alternativos. El área cuenta con varias estaciones de reabastecimiento de combustible para AFV, incluidos biodiesel, GNC y etanol. Autoridad y responsabilidad: UAQC, Greater Hickory MPO y miembros locales de EAC.
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Esfuerzos de Apoyo y Coordinación de la Organización de Planificación Metropolitana y la Organización de Planificación Rural.Greater Hickory MPO y Unifour RPO participan en la planificación del transporte a largo plazo para garantizar que los programas de carreteras y tránsito se ajusten a los objetivos de calidad del aire establecidos por la EAC. Autoridad y responsabilidad: MPO/RPO y miembros locales de EAC.
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Mejore la planificación operativa, la ingeniería y el mantenimiento del tráfico. La Ciudad de Hickory optimizó sus señales de tráfico sincronizadas a lo largo de la US 321, McDonald Parkway y Tate Boulevard, aumentando efectivamente el flujo de tráfico y reduciendo la congestión. Autoridad y responsabilidad: MPO/RPO y miembros locales de EAC.
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Implementar políticas de crecimiento inteligente, uso mixto y desarrollo de relleno. Esta medida ayuda a reducir las millas recorridas por vehículos y mejorar la calidad del aire a través de programas de gestión del uso de la tierra. Varios miembros han adoptado regulaciones de uso de la tierra basadas en conceptos de Crecimiento Inteligente. Autoridad y responsabilidad: Miembros locales de EAC.
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Programa de Concientización del Aire.Todos los miembros locales participan en el programa Air Awareness y han adoptado "Planes de acción de ozono" que incluyen disposiciones para ayudar a reducir la formación de ozono. Autoridad y responsabilidad: UAQC y miembros locales de la EAC.
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Adopte una política local de aire limpio.Las partes interesadas locales promueven la concienciación sobre la calidad del aire y trabajan para minimizar la contaminación por ozono en sus respectivas comunidades locales. Autoridad y responsabilidad: Miembros locales de EAC.
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Contactos de calidad del aire para cada miembro local de la EAC.Los contactos difunden información a los gobiernos locales y aseguran el cumplimiento de los objetivos del programa EAC. Autoridad y responsabilidad: Miembros locales de EAC.
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Normas de Paisajismo y Silvicultura Urbana. Implementación en Unifour para ayudar a mitigar el efecto de la "isla de calor urbano" y promover la conservación de energía y reducir las emisiones. Autoridad y responsabilidad: Miembros locales de EAC.
Every milestone requirement in the Unifour EAC_cc781905- 5cde-3194-bb3b-136bad5cf58d_has been met within appropriate time_cc781905-5cde- 3194-bb3b-136bad5cf58d_frames. In fall 2007, the EPA announced that 14 regions around the US (who had entered into EAC's) were ahead del cronograma para las reducciones del nivel de ozono, el área Unifour del condado de Hickory/Catawba fue una de las reconocidas por sus esfuerzos para lograr una reducción.
Estudio de reparto de fuentes
Alcanzar los estándares de contaminación en el condado de Catawba
Durante el otoño de 2006 y principios del invierno de 2007, el Consejo de Gobiernos de Western Piedmont (WPCOG) patrocinó un estudio para determinar las fuentes y las estrategias de control de las partículas finas, conocidas comúnmente como PM2.5. La preocupación que motivó el estudio fue provocada por la designación del condado de Catawba como un área no conforme para el contaminante por parte de la Agencia de Protección Ambiental de EE. UU. (USEPA). La USEPA es responsable, basándose en parte en las recomendaciones del gobernador de cada estado, de designar áreas que no cumplen con los estándares de contaminación de PM2.5 establecidos por los Estándares Nacionales de Calidad del Aire Ambiental (NAAQS) bajo la Sección 107(d) de la Ley de Aire Limpio y enmiendas posteriores.
Una vez que un área ha sido designada como de incumplimiento con respecto a los estándares de la USEPA para un contaminante controlado, los gobiernos locales y estatales del área generalmente responden para anular o reducir la designación (geográficamente en tamaño o en la gravedad de la designación), o, si está claro que la designación no se puede mejorar, deben trabajar para desarrollar e implementar un plan para que el área vuelva a cumplir con el estándar nacional. En el caso actual, la primera acción fue reducir el área inicial de incumplimiento recomendada por la USEPA de cuatro condados a solo uno: Catawba.
Los datos técnicos empleados por Carolina del Norte fueron suficientes para que la USEPA redujera el área de incumplimiento de cuatro condados a un condado. Otros dos condados de Carolina del Norte (Davidson y Guilford) también cayeron en incumplimiento.
Ubicación del sitio de monitoreo
Esta sensibilidad al nuevo estándar en el condado de Catawba se expresó más claramente por la firme creencia de los gobiernos locales de que la ubicación del dispositivo de monitoreo de Hickory, conocido como el sitio de monitoreo de la Torre de agua de Hickory, no era representativo de las características generales de la región. Varias acciones que cuestionan la validez de la ubicación y/o las lecturas de datos tomadas en el sitio tuvieron lugar entre el momento en que la designación del condado de Catawba entró en vigencia y el WPCOG contrató a un consultor para estudiar las fuentes y las medidas de control de PM2.5.
El primero de estos desafíos fue pedirle a la División de Calidad del Aire del Departamento de Medio Ambiente y Recursos Naturales de Carolina del Norte (NCDAQ) que colocara un segundo monitor dentro de aproximadamente una milla del sitio de la torre de agua para determinar si el segundo monitor (ubicado en Hickory Rescue equipo) mostraría lecturas más bajas que la ubicación de la torre de agua. Para cada trimestre entre julio de 2004 y junio de 2006, el equipo de rescate monitoreó que los niveles de PM 2.5 eran más bajos que los de la torre de agua lecturas del monitor, lo que indica que los eventos localizados podrían estar afectando el monitor en la torre de agua. En diciembre de 2005, el Comité de calidad del aire de Unifour (UAQC) solicitó una auditoría de la EPA tanto del equipo de rescate como de los monitores de las torres de agua. . The EPA auditors concluded that both sites “technically” met the EPA siting criteria. They Sin embargo, también concluyó que los impactos locales podrían estar afectando negativamente los resultados en el monitor de la torre de agua.
Con base en las conclusiones de la auditoría y las comparaciones de dos monitores, la UAQC envió una Solicitud de Propuestas en mayo de 2006 para determinar la fuente de distribución del monitor PM2.5 de la torre de agua. _cc781905-5cde- 3194-bb3b-136bad5cf58d_En julio de 2006, se solicitó a Louis Berger Group, Inc. que realizara el estudio. La siguiente es una lista de medidas que fueron el resultado de ese estudio
Tabla 1. Medidas locales de mitigación para PM 2.5 Fuente
Table 1. Local Mitigation Measures for PM 2.5 Source
Es muy poco probable que cualquiera de estas estrategias tenga un impacto significativo en el sitio de Hickory en términos de reducción de las concentraciones de PM2.5. De hecho, la combinación de combustibles más limpios; la activación de los controles de la chimenea en la planta de energía a carbón de Marshall, y los requisitos de inspección/mantenimiento más estrictos demostrarán ser de gran beneficio y, de hecho, pueden reducir las lecturas de PM2.5 en el sitio de monitoreo por debajo de los umbrales anuales y diarios existentes establecidos por la Agencia de Protección Ambiental de EE.UU. La figura 5 en la parte superior de esta página indica los porcentajes relativos de PM2.5 por tipo de fuente estimada.
Sin embargo, una combinación de estrategias locales de mitigación puede tener un impacto medible que, a su vez, brindaría una garantía adicional de que Hickory, el condado de Catawba y la región de Unifour están haciendo todo lo posible para reducir las emisiones de PM 2.5. También es posible que (a) los estándares de calidad del aire ambiental nacional (NAAQS) existentes cambien nuevamente, como lo han hecho recientemente para el estándar diario; o (b) las medidas locales y estatales existentes enumeradas en la Figura 1 no serán suficientes para empujar las lecturas del monitor de PM 2.5 por debajo del umbral de logro.
Plan Estratégico de Calidad del Aire de Unifour
El 21 de septiembre de 2010, la UAQC adoptó el Plan de calidad del aire de Unifour. El plan en sí contiene datos de calidad del aire, historial y una gran cantidad de información relacionada con la calidad del aire en la región de Unifour._cc781905 -5cde-3194-bb3b-136bad5cf58d_ A continuación se enumera la sección de Implementación del Plan.
Air Awareness
The North Carolina Air Awareness Program is a public outreach and education program of the North Carolina Division of Air Quality. The goal of the program is to reduce air pollution though voluntary actions by individuals and organizations. For the past decade NCDAQ has supported and collaborated with local Air Awareness Coordinators throughout the state including the Unifour Area. Until recently the UAQC participated without outside funding to support education and outreach efforts. However in 2009, UAQC was awarded $20,000 per year for three years from a DAQ federal CMAQ funding to support the local education and outreach efforts.
Statewide Campaigns
The North Carolina Air Awareness Program is a public outreach and education program of the North Carolina Division of Air Quality. The goal of the program is to reduce air pollution though voluntary actions by individuals and organizations. The program seeks to educate individuals about the sources of air pollution and explain how the health effects of air pollution can be minimized by modification of outdoor activities on ozone action days. In addition, the program aims to inform the public of ways to minimize production of air pollutants to improve air quality over time.
In addition to being a partner in the Greater Hickory/Unifour area, N.C. Air Awareness has local programs in the Triangle, the Triad, the greater Charlotte area, Fayetteville and the Asheville area.
NCDAQ works closely with local air agencies and Councils of Government to accomplish program goals. Although some program activities are centrally coordinated from the NCDAQ Raleigh Central Office, locally based area coordinators direct most local program activities. In the Triad and Charlotte areas, the local Air Awareness Programs are housed in the Forsyth County Environmental Affairs Department (FCEAD) and the Mecklenburg County Air Quality agency, respectively. In Asheville and the Triangle, local programs are housed at the NCDAQ Asheville Regional Office and the NCDAQ Central Office.
Program Components
The AQ Forecast: The most visible element of the program is the AQ forecast, seen by a large segment of the public on local TV news weather segments. Expected pollutant levels, in terms of color code and Air Quality Index (AQI) number, are forecasted year around by NCDAQ meteorologists. These forecasts are distributed to local media (television, radio, and newspaper) and to area businesses and individuals. The forecast is also displayed on the NCDAQ web page. Separate forecasts are issued for the Triangle, Charlotte, Hickory, Rocky Mount, Fayetteville and Asheville. The FCEAD issues air quality forecasts for the Triad.
School-Based Outreach: Program staff conduct educator-training workshops. Workshop participants can earn credit toward Environmental Educator certification (through NC Office of Environmental Education) as well as continuing education credits. Program staff also give classroom presentations at area schools. To learn more about school outreach programs, contact Doug Wise at 828.485.4283.
Regional Air Quality Coalitions: As Coalition members, area business, agencies and organizations multiply NCDAQ's education efforts by distributing the ozone forecast to employees and providing education about air quality. Regional Coalitions in Asheville, Hickory, the Triad, Charlotte and the Triangle count over 500 businesses and organizations statewide.
Public outreach: The North Carolina Air Awareness Program utilizes a wide range of web and media outlets to broadcast our message to the general public. These include statewide radio messages covering open burning, idle reduction, clean air tips and much more. Through both local coordinators and state representatives, our program regularly exhibits at health, environmental, and state fairs and festivals. Public information is distributed through the program website, daq.state.nc.us/airaware and the toll-free air quality hotline 1-888-RU4NCAIR. Information may also be obtained by emailing air.awareness@ncdenr.gov.
Know the Code Campaign
The Air Quality Index (AQI) is an index for reporting daily air quality. It tells you how clean or polluted your outdoor air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particle pollution (also known as particulate matter), carbon monoxide, sulfur dioxide and nitrogen dioxide. For each of these pollutants, EPA has established national air quality standards to protect public health.
AirNow Web Site
The AIRNow Web site (run by EPA) provides the public with easy access to national air quality information. The Web site offers daily AQI forecasts as well as real-time AQI conditions across the US, and provides links to more detailed State and local air quality Web sites.
EnviroFlash
EnviroFlash is a new electronic information system designed to communicate environmental issues to the public. EnviroFlash is a partnership between the U.S. Environmental Protection Agency and state and local air quality agencies.
EnviroFlash provides you with timely air quality information that you can use to plan your daily activities and protect your health. With EnviroFlash, you have complete control of your forecast subscription. Subscription is fast and easy, and you decide which forecasts to receive. You can change or discontinue your subscription at any time through the automated EnviroFlash web page at www.enviroflash.info.
The forecasts are developed daily by staff meteorologists at the North Carolina Division of Air Quality, just as they have been since 1998. These are the same forecasts you might see in your newspaper or on your local TV weather report.
Anti-Idling
Unnecessary idling wastes fuel, costs money and pollutes the air. NCDAQ had developed several initiatives to reduce idling of all diesel and gasoline vehicles.
Passenger Vehicles Program: Turn Off Your Engine “Breathe Better, Save Money”
This is a voluntary campaign aimed at protecting people's health and the environment, especially children and people with respiratory problems, by reducing vehicle emissions which are one of the main contributors to air pollution in our region. Learn how you can receive signs for parking lots and information for your organization or school.
Heavy-Duty Truck Rule
In 2010, the N.C. Environmental Management Commission (EMC) adopted the Heavy Duty Diesel Truck Rule as part of the state’s efforts to reduce air pollution, protect public health and meet more stringent federal air quality standards. The rule requires operators of heavy-duty trucks to reduce unnecessary idling in North Carolina. The commission sought input from truckers, shipping companies and other stakeholders in developing the rule, and more than 20 states have similar rules.
Idling vehicles are significant sources of air pollution. The state Division of Air Quality estimates the rule will reduce nitrogen oxide (NOx) emissions, the primary cause of ozone in North Carolina, by up to 1,300 tons per year statewide. In comparison, a moderate-sized coal-fired power plant typically emits about 500 tons of NOx a year. The rule could reduce emissions of carbon dioxide, the most common greenhouse gas, by as much as 100,000 tons per year. Exhaust from idling vehicles also contains fine particles and toxic air pollutants that can pose health risks for truckers and other people at highway rest areas, truck stops and other places where idling vehicles congregate.
Operators could save a lot of fuel and money by complying with the idle rule. A heavy-duty vehicle typically burns about one gallon of fuel per hour while idling. DAQ estimates the idle rule will save up to 9 million gallons of fuel per year statewide.
Who must reduce idling?
The idle-reduction rule applies to on-road gasoline and diesel-powered vehicles with loaded weights greater than 10,000 pounds. Under the rule, operators should not idle their vehicles more than five consecutive minutes in any 60-minute period except for certain cases dealing with safety, health and economic concerns.
The rule makes allowances for cases when idling may be necessary. For example, operators of emergency vehicles such as fire trucks can idle while responding to emergencies or during training exercises. Heavy-duty vehicles can idle when it’s necessary to operate equipment that depends on their engines, such as hoists and refrigerators.
Options for idle reduction
The easiest way to reduce idling is simply to turn off your engine. However, DAQ recognizes that vehicle operators often idle their engines for legitimate reasons, such as providing power for air conditioners, refrigerators and other equipment. Truckers can avoid much idling by stopping at truck stops that provide electricity and other services.
Another alternative is to install auxiliary power units, or APUs, to provide the electricity needed to run air conditioners and other equipment. Even though APUs can cost as much as $10,000 to install in a truck, DAQ estimates that the fuel and wear-and-tear savings from reduced idling would offset those costs in about one to two years for most trucks, depending on fuel costs. DAQ may have grant money available for operators who install APUs. More information about APUs and possible rebates can be found on the DAQ website: www.ncair.org/motor/Rebates/
DAQ and the local air awareness coordinators are focusing on education and outreach to achieve compliance with the idle rule for heavy-duty vehicles. However, as with an air quality rule, DAQ has the authority to levy fines. The division anticipates that most enforcement actions would be complaint-driven. Citizens can report suspected case of unnecessary idling on the DAQ website: www.ncair.org/motor/
The purpose of the idle reduction signage is to reduce pollution from idling buses and cars that negatively affect a child’s healthy lung growth and development. Children are more vulnerable to the impacts of vehicle pollution than other populations.
Most of our air quality problems in North Carolina are mobile source related. Vehicle emissions are the number one source of air pollution in many areas in North Carolina. When a car is idling, it's also polluting. Idling wastes money and natural resources. It can damage vehicles, pollute the air and harm our health. Our voluntary program is aimed at distributing free signs and materials to partners interested in keeping unnecessary idling under control in their parking lot and pick-up areas.
During 2009-2010 all public schools in the region were provided one to two signs per school. School district staff mounts signs on existing posts or walls.
Curriculum utilized in conjunction with Anti-Idling:
1st Grade, Ready, Set, Stop Idling: Students learn what is good and bad for the air by watching a video clip, taking part in a card activity, acting like cars and drawing and writing about idling.
2nd Grade, Make a Good Choice: Choose No Idling: By creating posters and t-shirts and reading a book, students explore how making good choices can help the environment while bad choices do the opposite.
Grades 3 – 5, Idlers: Please Stop Your Engines: After collecting idling data at school for one week, students make graphs using the information and slogans for mock no-idle bumper stickers. Please Do Not Make Us Cough, Turn Your Engine Off. Students complete graphic and writing organizers to prepare for a persuasive essay that educates and creates awareness about the harmful effects of idling and persuades others to stop idling.
Unifour Air Quality Committee
The Unifour Air Quality Committee (UAQC) is made up of stakeholders from the private and public sector that are dedicated to improving the air quality in the Unifour area. The Unifour Air Quality Oversight Committee (UAQOC) members are comprised of ten elected officials from the Unifour (Alexander County, Town of Taylorsville, Burke County, City of Morganton, Caldwell County, City of Lenoir, Catawba County, City of Conover, City of Hickory, and City of Newton). The UAQOC was formed to make policy and financial decisions for regional air quality activities. Staff support for the UAQC and UAQOC is provided by the Western Piedmont Council of Governments (WPCOG). Funding for the UAQC/UAQOC activities is provided by the Greater Hickory Metropolitan Planning Organization (GHMPO), the Unifour Rural Planning Organization (URPO), and occasional assessments of the 28 local governments in the region (based on population).
History of the UAQC/UAQOC:
In January 1999 the WPCOG learned that Unifour Region’s ozone levels would violate the new EPA 8-Hour Standard. The following spring and summer public meetings were held with local governments, the North Carolina Division of Air Quality (NCDAQ), Economic Development Corporations, Chambers of Commerce and other interested groups. In November 1999 the Catawba Air Quality Committee (CAQC) was formed. During the next four years the CAQC was expanded to include other regional members to form the Unifour Air Quality Coalition. The coalition eventually evolved into more formal Unifour Air Quality Committee (UAQC) and the Unifour Air Quality Oversight Committee (UAQOC) which is made up of stakeholders and elected officials from throughout the region.
UAQC/UAQOC Accomplishments and Commitments:
The UAQC and UAQOC meet monthly and are committed to improving air quality in the region through various strategies. Measures already taken include:
Unifour Early Action Compact (EAC) - In December 2002 the UAQC/UAQOC assisted in an agreement between Federal, State, and Local governments to address ozone pollution in a more expedient manner than what is required in the Clean Air Act through an Early Action Compact (EAC). The Unifour EAC has been recognized by EPA as one of the most successful programs in the United States.
Hiring Technical Consultants - the UAQC/UAQOC gets assistance from consultants to provide guidance and expertise to the committee. For example, the UAQC/UAQOC commissioned a study with the Louis Berger Group to determine the local causes of PM 2.5 in the Unifour Area.
Air Awareness Programs - The North Carolina Air Awareness Program is a public outreach and
education program of the North Carolina Division of Air Quality. The goal of the program is to reduce air
pollution though voluntary actions by individuals and organizations. For the past decade NCDAQ has
supported and collaborated with local Air Awareness Coordinators throughout the state including the Unifour Area. WPCOG staff acts as regional Air Awareness Team members in conjunction with NC DAQ’s Air Awareness Program, providing air quality outreach to the region, including students, teachers and the general public.
Unifour Strategic Air Quality Plan –The WPCOG completed the Air Quality Plan in 2010. The UAQC wanted to build on all of the previous work by having a regional planning document that laid out ongoing strategies to improve air quality.
Presentations - Unifour Air Quality Committee
Air Quality & Emissions
Fine Particulate (PM 2.5) Monitor Readings
The NC Division of Air Quality (DAQ) is required to evaluate fine particle pollution (known as PM 2.5) to determine if Catawba County is in attainment for the federal standards for PM 2.5. Specifically, NCDAQ evaluated the following data yearly as part of the air quality analyses:
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Annual PM 2.5 Averages – Average daily reading during the course of one calendar year. PM 2.5 monitor readings usually are taken and analyzed every third day during the course of a year.
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PM 2.5 3-year Averages – Average of the last three years, used to determine change over longer periods of time.
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PM 2.5 98th Percentile Daily Reading – 3rd or 4th highest reading during the course of a year. PM 2.5 monitor readings usually are taken and analyzed every third day during the course of a year.
Due to the population size of the Hickory-Lenoir-Morganton Metropolitan Statistical Area (MSA), the region is required by the US Environmental Protection Agency (USEPA) to have one PM 2.5 monitor. The monitor is located one block west of US 321 close to the water tank owned by the City of Hickory. Additional monitoring related to the official monitor is also taking place on the site.
The PM 2.5 federal standard is a three-year average of annual PM 2.5 monitor readings. A violation occurs if a PM 2.5 monitor exceeds the standard. The Federal standard for PM 2.5 until 2012 was 15 micrograms per cubic meter. The standard was lowered in December 2012 to 12 micrograms per cubic meter.
Annual PM 2.5 Averages
Table 1 shows the yearly readings for the Hickory monitor between 2004 and 2014. The design values are presented in micrograms per cubic meter, with values exceeding the standard highlighted with grey shading and bold lettering.
In 2005 and 2006 the Hickory PM 2.5 monitor recorded violations of the standard. Data in Table 1, however, shows significant decreases in PM 2.5 design values since 2006 in the region, which can be attributed to multiple factors, including traffic improvements, mobile source emission reductions, alternative fuels and technologies, the addition of pollution control scrubbers at the Marshall Steam Station (coal fired electric power plant owned by Duke Energy that located in southeastern Catawba County), more favorable weather patterns and poor economic conditions. As a result of these factors, annual PM 2.5 readings at the Hickory Water Tower Monitor have been less than 10 micrograms per cubic meter since 2012.

PM 2.5 3-year Averages
The PM 2.5 three-year average is a health based standard that is used to see how air quality conditions are changing over time. It is calculated by averaging the annual value for three years. Since the design value is an average of three years, a decrease may be the result of one really good air quality year; or conversely, an increase may be the result of one bad air quality year. Therefore, looking at the trends of the 3-year average can give insight as to how the air quality in an area is improving.
In December 2004 USEPA placed all of Catawba County in “non-attainment status” for PM 2.5 based on the three-year average between 2001 and 2003 being slightly above the 15.0 standard. Table 2 displays the 3-year averages for the Hickory PM 2.5 monitor between 2004 and 2014. Results show that the monitor was in nonattainment for the 15 micrograms per cubic meter PM 2.5 standard through 2005-2007. Over the past decade PM 2.5 levels at the Hickory monitor have fallen substantially. As a result of improving PM 2.5 levels, in December 2011 Catawba County was moved out of nonattainment status by USEPA and was placed instead in “maintenance (attainment) status.” The 2011-2013 and 2012-2014 three-year averages for the Hickory PM 2.5 monitor were less than 10 micrograms per cubic meter.

PM 2.5 98th Percentile Daily Reading
Besides setting an annual standard, USEPA also has a daily PM 2.5 standard to protect public health. The annual federal standard, established in 2006, is 35 micrograms per cubic meter. The standard is calculated at the 98th percentile for each year (USEPA uses a three-year average for the standard), which is equivalent to 3rd or 4th highest daily reading during the course of a year (PM 2.5 monitor readings usually a taken and analyzed every third day during the course of a year). The PM 2.5 98th percentile daily reading has been below the standard every year except in 2005 (Table 3). The three-year average has never violated the daily standard.

Ozone Monitor Readings
The NC Division of Air Quality (DAQ) is required to evaluate design value (DV) trends and ozone exceedance trends to determine if any of the State’s monitors show increases in ozone formation. Specifically, the NCDAQ evaluates the following data as part of the air quality analyses:
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8-hour Ozone Design Value Trends – Most recent design values (1 and 3 year average of the 4th highest 8-hour ozone average), compared to the trend in design values from the 2005 timeframe to present.
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8-Hour Ozone Exceedances – Number of exceedances of the 8-hour ozone standard at each monitor in the EAC areas for the most recent ozone season, compared to the number of exceedances at each monitor from 2005 to present.
Due to the population size of the Hickory-Lenoir-Morganton Metropolitan Statistical Area (MSA), the region is required by the US Environmental Protection Agency (USEPA) to have two ozone monitors. The monitors are located in Alexander County (Taylorsville) and Caldwell County (Lenoir).
The ozone federal standard is a three-year average of the fourth highest daily 8-hour ozone monitor reading. A violation occurs if an ozone monitor exceeds the standard. The Federal standard for ozone until 2008 was 85 parts per billion (ppb). The standard was lowered in 2009 to 75 ppb. In October 2015 the ozone standard was lowered again to 70 ppb.
8-hour Ozone Design Value Yearly Trends
Table 1 below shows the trend in 8-hour ozone values at monitors in Alexander and Caldwell County. The design values are presented in ppm, with design values exceeding the standard highlighted in gray with bold lettering.

*2015 data is preliminary and not been varied by USEPA. Source: USEPA and NC Division of Air Quality, 2018.
Data in Table 1 shows significant decreases in ozone design values over the past decade in the region, which could be attributed to multiple factors, including traffic improvements, mobile source emission reductions, alternative fuels and technologies, more favorable weather patterns, and poor economic conditions.
8-Hour Ozone Exceedances
No daily 8-hour ozone exceedances have occurred over the past decade at either the Alexander County or Caldwell County monitor.
4th Highest Value Trends
The design value is calculated by averaging the 4th highest 8-hour ozone value for each of three years. Since the design value is an average of three years, a decrease may be the result of one really good air quality year; or conversely, an increase may be the result of one bad air quality year. Therefore, looking at the trends of the 4th highest value can give insight as to how the air quality in an area is improving.
Table 2 displays the 4th highest daily 8-hour ozone 3-year averages for the region. Three year averages at both monitor locations have been decreasing since 2005. The 2013-15 4th highest daily 8-hour ozone monitor averages are currently well below the current federal standard of 70 parts per billion.

