Janice Lam Snyder, SMAQMD December 11, 2015 Sacramento Valley Basin-wide Air Pollution Control Council Air Monitoring Briefing Janice Lam Snyder, SMAQMD December 11, 2015

Three Part Presentation & Tour Air Monitoring Introduction Focused on Particulate Monitoring Ag Burn Forecast Emergency Response Tour of T street Laboratory and Air Monitoring Station

Air Monitoring Network Requirement & Objectives Clean Air Act Regulatory Req. 40 CFR 58.10 Siting Criteria Operating schedules Analysis Methods Monitoring Objectives Prompt Public notification Support compliance health standards Support research studies

Air Pollutants & Parameters Gaseous Ozone (O3) Carbon Monoxide (CO) Standard, and Trace Nitrogen Dioxide (NO2) Oxides of Nitrogen (NOy) Sulfur Dioxide (SO2) Trace levels Non-Methane Hydrocarbon (NMHC) Toxics (VOCs, Carbonyls, diesel particulates) Particulate Matter PM10 PM2.5 Lead Speciated Meteorological Parameters wind speed, wind direction, solar radiation, relative humidity, temperature

Particulate Monitoring (PM 10 & PM2.5) PM10 or PM “Course” <10 microns in diameter PM 2.5 or PM “Fine” <2.5 microns in diameter

BCC Particulate Air Monitoring Network (PM2.5 & PM10)

Particulate Monitors

Type I: Hourly Continuous Particulate (Real-Time Monitoring) Beta Attenuation Monitor (BAM): Measures PM2.5 Three Types: Regulatory (FEM) Non-Regulatory (non-FEM) E-BAM (Emergency response & special studies) Particulates are deposited on a tape Uses radioactive beta particle absorption Tapered Element Osculating Membrane (TEOM): Measures PM10 Samples are deposited on a filter, that is mounted on an osculating tube. Measurements are made by determining the decay in the osculating frequency Aethalometer (Black Carbon) Uses light analysis to determine composition

Continuous Monitor Data Collection & Public Notification Continuous data is logged by a computer (data logger) at air monitoring site The data logger perform initial quality assurance checks Preliminary data are downloaded hourly and are pushed to CARB’s AQMIS Official data is available 60-90 days after sample in AQS after data validation process

Type II: Filter Based Particulate Monitoring

Types II: Filter-Based Particulate Monitoring Federal Reference Monitors (FRM) Measures PM10 or PM2.5 Regulatory data (i.e designations, nonattainment) Speciated Data (CSN Network) Operates on a EPA set schedule Filters are analyzed by a laboratory (i.e. CARB) Data available approx. 60 to 90 days Monitoring Organization (MO) Analysis Laboratory Uploading Agency (CARB or MO) EPA AQS (Official Data)

Type III: Low Cost Monitors

Low Cost or Personal Monitors (Non-Regulatory) Cost Range $20 to $10,000 Parameters from gaseous to particulate Could provide information for personal exposure Not used for Regulatory Purposes Poor quality data obtained from unreliable sensors may lead to confusion

Meteorological Parameters Surface Meteorological Data: Wind Speed and Direction Air Temperature at 10 meters, Relative Humidity Solar and Ultra Violet Radiation Barometric Pressure Upper Air Data, using a Doppler Radar located next to the Bruceville Air Monitoring Station Measures Wind Speed, Wind Direction, and Virtual Temperature up to 5 Kilometers Provides useful information for Air Quality Forecasting & Air Quality Modeling

Part II: Ag Burn Forecasting