Next >>

This is a followup suppliemental literature review of air sensors that covers the period from 2017 to 2019. It will be used to support development of perormance targets for air sensors.

The use of air sensors continues to grow for a variety of air monitoring applications. However, the data quality still remains highly variable. In 2021, the U.S. EPA published reports outlining recommended testing protocols to evaluate the performance of fine particulate matter a...

The use of air sensors continues to grow for a variety of air monitoring applications. However, the data quality still remains highly variable. In 2021, the U.S. EPA published reports outlining recommended testing protocols to evaluate the performance of ozone air sensors for non...

In-situ burning (ISB) is the controlled burning of oil spilled from a vessel or pipeline. There were multiple ISB events after the Deepwater Horizon oil spill on April 20, 2010, including 410 ISBs conducted by the Coast Guard [1]. Proponents of ISB suggest that it offers a rapid ...

A fire whirl technique was tested for its ability to improve the combustion efficiency of in situ oil burns at sea. The oil burns on water tests were conducted at Texas A&M Engineering Extension Service’s (TEEX) Brayton Fire Training facility located in College Station, Texas. Em...

This report documents the results of an interagency project to sample emissions from in situ oil burns, comparing ground-based particulate matter measurements with measurements by aerial unmanned aircraft system (UAS). A sensor/sampler system from the Environmental Protection Age...

The use of air sensors has grown exponentially for a variety of applications; however it is widely known that sensor data quality is highly variable. There are currently no standard testing protocols, metrics, or targets to evaluate air sensor performance uniformly. It is recogni...

In the U.S., fugitive emissions (leaks) of VOC and HAPs from process components have traditionally been managed using scheduled manual inspection of individual components with U.S. EPA Method 21 (M21) as part of facility LDAR programs. Although sensitive and flexible, M21 is reso...

The use of air sensors has grown exponentially for a variety of applications; however it is widely known that sensor data quality is highly variable. There are currently no standard testing protocols, metrics, or targets to evaluate air sensor performance uniformly. It is recogni...

Over the past few years, concerns have been raised by regional environmental stakeholders regarding air quality in Maricopa County, AZ with particular attention to the presence of particulate matter and black carbon due the use of wood burning fireplaces and backyard fire pits in...

RETIGO is a web based tool that allows the integration of environmental data for visualization and analysis. This tool was developed by EPA and is available for free. RETIGO allows the user to combine existing (Agency, State or other sources) environmental and meteorological da...

Recently, the rapid growth of miniaturized, lower-cost air sensors is changing the landscape of air pollution monitoring to enable cities, civil society, businesses, and consumers to monitor local air quality conditions, though with accuracy not on par with reference techniques. ...

The Village Green Project is a community-based activity to demonstrate the capabilities of new real-time monitoring technology for residents and citizen scientists to learn about local air quality. The goal of the project is to provide the public and communities with information ...

Swiss needle cast (SNC) is an endemic disease of Douglas-fir caused by Phaeocryptopus gaeumannii. The fungus infects newly emerged needles between May and August. As the fungus develops, its fruiting bodies (pseudothecia) block the stomata and inhibit gas exchange, reducing the p...

The emergence of small, portable, low-cost air sensors has encouraged a shift from traditional monitoring approaches for air quality. The U.S. Environmental Protection Agency (U.S. EPA), in collaboration with the South Coast Air Quality Management District’s (SCAQMD) Air Quality ...

A request for technical collaboration between the UNEP and the US EPA resulted in the establishment of a MCRADA. The purpose of this agreement was to evaluate an air quality monitoring system (referred to as the UNEP pod) developed by the UNEP for use in environmental situations ...

For EPA, this Summer 2014, Denver CO, DISCOVER-AQ field research activity focused on assessing Federal Reference Methods (FRMs) and Federal Equivalent Methods (FEMs) for ozone (O3) and Nitrogen Dioxide (NO2), while comparing their operational performance to each other and to smal...

Particulate matter (PM) is a pollutant of high public interest regulated by national ambient air quality standards (NAAQS) using Federal Reference Method (FRM) and Federal Equivalent Method (FEM) instrumentation identified for environmental monitoring. The US EPA has been evaluat...

Background Particulate matter (PM) is a pollutant of high public interest regulated by national ambient air quality standards (NAAQS) using federal reference method (FRM) and federal equivalent method (FEM) instrumentation identified for environmental monitoring. PM is present i...

This Air Sensor Guidebook has been developed by the U.S. EPA to assist those interested in potentially using lower cost air quality sensor technologies for air quality measurements. Its development was in direct response to a request for such a document following a recent scienti...

This report is the result of low cost air quality sensor performance trials conducted in the NERL’s on-site laboratories located in the Research Triangle Park, NC during 2012-2013. Such trials were viewed as highly valuable for all parties following the conclusion of the U.S. E...

Executive Summary The public has long been interested in understanding what pollutants are in the air they breathe so they can best protect their environmental health and welfare. The current air quality monitoring network consists of discrete stations with expensive equipment ...

EPA has developed a technology transfer handbook for the EMPACT Paso del Norte Project. The EMPACT Paso del Norte Environmental Monitoring Project is a mobile vehicle emissions project that involves the international community of El Paso, TX; Sundland Park, NM; and Juarez, Mexico...

The USEPA's National Homeland Security Research Center (NHSRC)Technology Testing and Evaluation Program (TTEP) is carrying out performance tests on homeland security technologies. Under TTEP, Battelle recently evaluated the performance of the Science Applications International Co...

The Environmental Technology Verification report discusses the technology and performance of the Parametric Emissions Monitoring System (PEMS) manufactured by ANR Pipeline Company, a subsidiary of Coastal Corporation, now El Paso Corporation. The PEMS predicts carbon doixide (CO2...