CLEARING THE AIR Districts Air Quality Monitoring Program

CLEARING THE AIR District’s Air Quality Monitoring Program Clearing the Air Workshop #2: May 25, 2021 TAG THIS PRESENTATION @DOEE_DC

Air Quality Program Planning (Improvement Plans & Regulations) Air Emissions Ambient Air Quality Goals Air Quality Monitoring Permitting Compliance & Enforcement @DOEE_DC

Why monitor ambient air quality? § Public health protection § air quality levels vs. national standards § § Identify air pollution sources Develop air pollution controls Science and research Public outreach/Education @DOEE_DC

Why monitor…? Air monitoring data applications: � Attainment status and trends � Health risk assessment and ecosystem impacts � Develop/evaluate emission control strategies � Source-receptor relationships � Models development/evaluation DOEE Authority and Limitations: � Clean Air Act mandates � Federal grant funded @DOEE_DC

What is the Focus? red o t i n o m s ant SIX pollut e: d i w n o i t a n e (CO) d i x o n o M 1. ) Carbon SO 2) ( e d i x o i D 2. ) Sulfur O 2) N ( e d i x o i n. D. 5) 3. ) Nitroge 2 M P & 0 1 ter (PM t a M e t a l u 4. ) Partic e (O 3) n o z O l e v -Le 5. ) Ground EPA established National Ambient Air Quality Standards for these SIX “criteria” air pollutants b) 6. ) Lead (P @DOEE_DC

When did air monitoring begin in District? • 14 cities dust-fall measurement study 1931 -1933 • 10 cities SO 2 & ozone study 1953 -1954 • National Air Sampling Network 1953 -1959 • Continuous Air Monitoring Program 1962/1963 • First continuous measurement program- ozone, SO 2, NO, CO, total oxidants, total hydrocarbons • 7 cities- DC, New Orleans, 427 New Jersey Avenue NW District’s CAMP station Chicago, Philadelphia, Cincinnati, San Francesco, and Los Angeles @DOEE_DC

What do we have in District’s Monitoring Program? � Criteria Ø Ø air pollutant network Continuous real-time measurements for Five pollutants- CO, SO 2, NO 2, O 3 and PM 25 & PM 10 Must use federal methods and analyzers � Specialized Ø Ø Ø networks (research grade) Ozone precursor pollutants PM 2. 5 chemical species Air toxics - National Air Toxics Trends Station National Core (trace-level CO & SO 2, PMcoarse) Near-road exposure Meteorology Round the year 24/7 measurements @DOEE_DC

Where are District’s Monitoring Stations? Site Name Street Address Mc. Millan 2500 First St NW Reservoir River Terrace 405 Anacostia Education Center Ave NE Takoma Rec 301 Van Buren Center St NW Benning Rd NE I-295 Near-Road at I-295 On. Station ramp King Greenleaf 201 N St SW Rec Center Location Setting Urban / EJ community Urban / EJ community @DOEE_DC

Air Monitoring Stations @DOEE_DC

Air Monitoring Stations @DOEE_DC

Air Monitoring Stations @DOEE_DC

Where to find Air Quality Data? District’s ambient air data in public databases Real-time Data: EPA’s Air. Now- https: //www. airnow. gov/ Metro Washington Council of Governments (MWCOG) http: //www. mwcog. org/environment/air/forecast/ Baltimore-Washington area Clean Air Partners http: //www. cleanairpartners. net/current-and-forecasted-air-quality Quality Assured Data: EPA’s Air. Data- https: //www. epa. gov/outdoor-air-quality-data @DOEE_DC

Where to find data… @DOEE_DC

Where to find data… @DOEE_DC

Where to find data… @DOEE_DC

Where to find data… @DOEE_DC

National Ambient Air Quality Standards (NAAQS) Pollutant NAAQS Ozone PM 2. 5 PM 10 70 ppb 35 µg/m 3 & 12 µg/m 3 150 µg/m 3 Carbon Monoxide 35 ppm & 9 ppm Nitrogen Dioxide 100 ppb & 53 ppb Sulfur Dioxide 75 ppb Lead 0. 15 µg/m 3 Source: https: //www. epa. gov/criteria-air-pollutants/naaqs-table @DOEE_DC

District’s Air Quality vs. NAAQS • Carbon monoxide, CO • Nitrogen dioxide, NO 2 • Sulfur dioxide, SO 2 • Lead, Pb • Particulate Matter (PM 10 & PM 2. 5) • Ozone, O 3 @DOEE_DC

District’s Air Quality Status… @DOEE_DC

Questions? Contact: Dr. Rama Tangirala (202) 535 -2989 rama. tangirala@dc. gov @DOEE_DC