Sponsor Profiles - Visibility 2021




Sunset Laboratory has been leading the way for Organic/Elemental Carbon Aerosol (OCEC) measurements since 1984.  We remain the market leader in OCEC instrumentation and analysis for filters with our Laboratory-based OCEC analyzer and in ambient monitoring with our Semi-Continuous OCEC aerosol analyzer.   Our instrumentation has the ability to easily perform a variety of official analysis methods, such as NIOSH Method 5040, Improve-A, STN, EUSAAR2, as well as others.

DSTech develops uniquely flexible and reliable air quality sensing solutions. The ObservAir is a rugged handheld unit that simultaneously monitors black carbon and up to two gaseous pollutants. Patented technology maintains measurement accuracy in harsh operating conditions, and wireless modules provide real-time data to your phone and PC from nearly anywhere.

Magee Scientific is the originator of the Aethalometer®; the Total Carbon Analyzer; and other instruments for measuring carbonaceous aerosols.  Our equipment is rugged, reliable and designed for real-world monitoring applications.  Performance may be validated in the field by NIST-traceable standards kits. 
Sonoma Technology, Inc. (STI) is an employee-owned firm that delivers innovative, science- and technology-based solutions for our clients’ environmental needs worldwide. Our services include air quality research, atmospheric measurements, air quality and smoke forecasting, atmospheric modeling and analysis, instrumentation and data system development, software development, decision support systems, and outreach.

URG is helping to ensure the air we breathe is the best it can be by creating the Ambient Ion Monitor (AIM) for the time-resolved, direct measurement of gas (hydrogen chloride, nitric acid, nitrous acid, sulfur dioxide, ammonia) and artifact free particulate matter (nitrate, sulfate, nitrite, phosphate, chloride ammonium, sodium, calcium, potassium, magnesium) air pollutants. We specialize in Teflon coated cyclones with various cut-points and flow rates, and stainless steel cyclones for diesel emissions.


2B Technologies is dedicated to the development and commercialization of new analytical instruments for atmospheric and environmental measurements.  We specialize in miniaturized instruments for measurements of ozone (O3), nitric oxide (NO), nitrogen dioxide (NO2), mercury (Hg), black carbon, PM2.5,  and other chemical species in air. 

Air Resource Specialists, Inc. (ARS) has nationally recognized expertise in operating air quality, meteorology and visibility monitoring programs and conducting comprehensive special studies. Formed in 1981, ARS has successfully conducted a wide range of projects for federal, state, municipal and tribal agencies, as well as industrial clients. Areas of special expertise include: monitoring for criteria pollutants, volatile organic compounds (VOCs), meteorology and visibility; data analysis; research, audit, and instrument services; air quality and visibility modeling; and environmental compliance services. Our staff of scientists, field specialists, data analysts and support personnel operate over 100 monitoring sites nationwide, including large and small networks in urban, rural, and remote locations.
TSI, a world leader in particle measurements, offers a variety of outdoor air quality monitors for real-time, direct-reading results. The DustTrak™ Environmental Monitor measures PM1, PM2.5, respirable, PM10 and total PM size fractions, providing near-reference quality data. In addition, TSI offers a variety of aerosol and dust monitors, and indoor air quality monitors.


Atmosphere (ISSN 2073-4433; CODEN: ATMOCZ, SCI journal, Impact Factor: 2.397 is an international peer-reviewed open access journal of scientific studies related to the atmosphere published monthly online by MDPI. To publish with us you can enjoy high visibility and rapid publication (median publishing time in 2019: 37 Days). Detailed Aim and Scope can be found at


Since 1955, the Bay Area Air Quality Management District has been the public agency responsible for protecting air quality in the nine counties that surround San Francisco Bay: Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, southwestern Solano, and southern Sonoma counties.  Air District programs monitor air emissions sources, promote climate protection, provide clean air grants, draft rules and regulate stationary air pollution sources. The Air District’s mission is to protect and improve public health, air quality and the global climate.  The Air District encourages clean commute alternatives through the Spare the Air program.


The Electric Power Research Institute, Inc. (EPRI, conducts research and development relating to the generation, delivery and use of electricity for the benefit of the public. An independent, nonprofit organization, EPRI brings together its scientists and engineers as well as experts from academia and industry to help address challenges in electricity, including reliability, efficiency, affordability, health, safety and the environment. EPRI also provides technology, policy and economic analyses to drive long-range research and development planning, and supports research in emerging technologies. EPRI members represent 90% of the electric utility revenue in the United States with international participation in 35 countries. EPRI’s principal offices and laboratories are located in Palo Alto, Calif.; Charlotte, N.C.; Knoxville, Tenn.; and Lenox, Mass.

NASA’s Applied Sciences Program discovers and demonstrates innovative uses and practical benefits of NASA Earth science and data from NASA’s Earth-observing environmental satellites. Applied Sciences supports applied research and targeted decision-support projects. The Program currently has formal efforts in: Health & Air Quality, Disasters, Ecological Forecasting, and Water Resources.

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Please contact Jeff Schurman for additional information at 412-904-6003 or email