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The do-it-yourself (DIY) air cleaner consisting of a box fan and a furnace filter is a widely used low-cost alternative to commercial air cleaners because of its increased accessibility. We evaluated the clean air delivery rate (CADR) of different DIY air cleaner designs for redu...

This presentation will be given at a workshop on developing best practices for chemically characterizing vapor phase emissions from PFAS destruction technologies. The audience will include researchers from academia, goverment, and industry. All slides have been cleared previously...

RATIONALE&nbsp; Air pollution exposure in pregnancy may affect fetal growth, and fetal growth restriction (FGR) is associ&shy;ated with lung im&shy;pairment that can persist into adulthood. Associated diseases include asthma, pulmonary hypertension (PH), and chronic obstructive p...

Laboratory and field tests examined the potential for unmanned aircraft system (UAS) rotor wash effects on gas and particle measurements from a biomass combustion source. Tests compared simultaneous placement of two sets of CO and CO2 gas sensors and PM2.5 instruments on a UAS bo...

Basal increases in ambient temperature and regional temperature spikes are associated with changes in weather patterns, increases in wildfires and other natural disasters. This pattern of climate change directly or indirectly impacts human health and lifestyle, especially in vuln...

The U.S. Environmental Protection Agency&rsquo;s (U.S. EPA) Office of Research and Development (ORD) recognized the need to develop an approach to study non-chemical stressors within a chemical stressor paradigm. Research is needed to identify which non-chemical stressors are lik...

Background and Purpose: To establish toxicity reference values, risk assessments require reliable methods with well-characterized uncertainty. Next generation risk assessment will require in vitro to in vivo extrapolation (IVIVE) to translate observed cellular responses to whole ...

This dataset includes continuous formaldehyde measurements made at three field sites in the Long Island Sound region during the summer of 2023. A Picarro G2307 formaldehyde and methane analyzer was run at Rutgers in New Brunswick, NJ and Aerodyne formaldehyde instruments were run...

Seagrass meadows and oyster beds are important coastal systems that provide many benefits. When these habitats are located near each other, benefits may include improved water quality and increased carbon storage. In two RI salt ponds, habitat zones sampled included eelgrass beds...

Climate change is associated with increased ambient temperatures, more frequent and longer-lasting heatwaves, and increased air pollution from widespread wildfires, all of which are likely to exacerbate stress-related disorders. We hypothesized that stress caused by subchronic hi...

Research efforts aimed at the development of new measurement technologies capable of measuring additional or emerging pollutants of concern at lower concentrations, by smaller and more portable devices, in real-time, and at lower cost continue to be essential for meeting our curr...

We use the Community Multiscale Air Quality (CMAQv5.4) model to examine the potential impact of particulate nitrate (pNO3&minus;) photolysis on air quality over the Northern Hemisphere. We estimate the photolysis frequency of pNO3&minus;&nbsp;by scaling the photolysis frequency o...

With the declining tailpipe emissions from the US and worldwide motor vehicle fleet, impacts of tire and brake wear are an increasingly important area of interest.&nbsp; Recent research has shown the compound 6PPD used in tires as an anti-degradation chemical reacts with ozone to...

With the declining tailpipe emissions from the US and worldwide motor vehicle fleet, impacts of tire and brake wear are an increasingly important area of interest.&nbsp; Recent research has shown the compound 6PPD used in tires as an anti-degradation chemical reacts with ozone to...

This is a quick overview of the implications of two rules (1. recent final rule for primary PM2.5, and 2. the final PA (policy assessment) for secondary NOxSOxPM ) on total atmospheric deposition of N and S. The is given to the USFS critical loads group as part of their monthly s...

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...

Chemical concentration versus time (CvT) data is commonly used to characterize the toxicokinetic (TK) properties of chemical substances. However, obtaining in vivo CvT data requires scientific labor and use of animal subjects. To reduce or eliminate new animal testing, it remains...

EPA announced the availability of the final report, <em>Integrated Science Assessment ISA for Lead Pb</em>. This document represents a concise synthesis and evaluation of the most policy-relevant science and will provide the scientific basis for EPA’s review of the National Ambie...

In recent years, the emission of particles and gaseous pollutants from 3D printing has attracted much attention due to potential health risks. This study investigated the generation of environmentally persistent free radicals (EPFRs, organic free radicals stabilized on or inside ...

Collocation of air quality sensors at existing regulatory air monitoring sites allows sensor data comparison against quality-assured reference data and is a cost-effective method for understanding the performance of lower-cost air sensors. In some cases, collocations can allow fo...

Solutions-driven research is a transdisciplinary approach that incorporates diverse forms of expertise to identify solutions to stakeholder-identified environmental problems. This qualitative evaluation of early solutions-driven research projects provides transferable recommendat...

Air pollution remains an important contributor to adverse health outcomes in the U.S. Currently, 121 million people, or one third of the U.S. population, live where National Ambient Air Quality Standards are violated.&lt;span style='mso-element:field-begin'&gt; ADDIN EN.CITE &lt;...

Differentiated primary human bronchial epithelial cell (dpHBEC) cultures grown&nbsp;under air-liquid interface (ALI) conditions exhibit key features of the human&nbsp;respiratory tract and are thus critical for respiratory research as well as efficacy&nbsp;and toxicity testing of...

Abstract for invited SOT 2024 session &quot;Practical applications of machine learning for gaining mechanistic insights in toxicology&quot; Monitoring of chemical occurrence in various environmental media is gold-standard information for characterizing the mechanisms by which hum...

Per- and polyfluoroalkyl substances (PFAS) consist of &gt;4,000 man-made compounds. Due to their water-repellant and non-stick properties, PFAS are used as coatings on cookware, outdoor apparel, textiles, and in personal care products. Some PFAS are associated with negative healt...