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Peat and eucalyptus smoke produces equivalent toxicity between flaming and&middot; smoldering conditions despite tenfold lower PM concentrations for flaming Smoke from oak combustion is less toxic than that from peat or eucalyptus Smoke inhalation has significant eff...

Emission measurements of black carbon (BC) mass were conducted on a T63 turboshaft engine, operated at idle and cruise power with conventional and alternative fuels, using an Artium LII-300 laser induced incandescence (LII) analyzer and AVL Model 483 Micro Soot Sensor (MSS) photo...

The compositional details of nitroaromatic compounds (NACs) emitted during biomass burning (BB) and their contribution to light-absorbing organic carbon (OC), also termed brown carbon (BrC), are poorly understood. In this study, three laboratory BB experiments were conducted with...

Understanding the impact that ambient air pollution exposure during different stages of pregnancy has on the risk of adverse birth outcomes is vital for protection of the fetus and for the development of mechanistic explanations for disease evolution. As a result, statistical mod...

Halogenated platinum salts can trigger the development of occupational asthma. Until recently, laboratory research into the development and manifestation of platinum hypersensitivity responses were hindered by the lack of an animal model suitable for assessing the functional con...

The United States Environmental Protection Agency held an international two-day workshop in June 2018 to deliberate possible performance targets for non-regulatory fine particulate matter (PM2.5) and ozone (O3) air sensors. The need for a workshop arose from the lack of any marke...

The following abstract is for a presentation at the 2019 Air and Waste Management Association&rsquo;s Air Quality Measurements and Methods Conference in Durham, NC, April 2-4 2019. Abstract: Optical gas imaging (OGI), primarily utilizing video cameras filtered to mid-IR waveleng...

The following is an extended abstract supporting a presentation at the 2019 Air and Waste Management Association’s Air Quality Measurements and Methods Conference in Durham, NC, April 2-4 2019. Abstract: Optical gas imaging (OGI), primarily utilizing video cameras filtered to...

The following extended abstract is in support of a presentation given at the 2019 Air and Waste Management Association&rsquo;s Air Quality Measurements and Methods Conference in Durham, NC, April 2-4 2019. Abstract: Optical gas imaging (OGI), primarily utilizing video cameras ...

Currently it is difficult to prospectively estimate human toxicokinetics (particularly for novel chemicals) in a high-throughput manner. The R software package httk has been developed, in part, to address this deficiency, however it is limited to oral and intravenous exposure rou...

The essential role that early life events (i.e., intrauterine growth restriction) and environmental exposures (i.e., air pollution) play in development of childhood asthma and obesity are only partly understood. Notably, asthmatic children who develop obesity through adolescence ...

Dissolved oxygen (DO) has a fundamental effect on both the health and the biogeochemical function of aquatic ecosystems. In estuaries, changes in DO relevant to biotic systems often occur over a wide range of temporal and spatial scales, forced by tidal inundation and rainfall, o...

Acute exposure to ozone leads to multi-organ alterations through activation of the sympathetic-adrenal-medullary and hypothalamic-pituitary-adrenal axis, which control the synthesis and release from adrenal glands of epinephrine and glucocorticoids, respectively. These hormones ...

E-Cigarette Flavoring Compounds Inhibit the Primary Nicotine-Metabolizing Enzyme in a Novel Cell Culture System Brett R. Winters1, Ariel M. Wallace2, Phillip W. Clapp1, Joachim D. Pleil2, Steven Simmons2, Michael C. Madden2, and Ilona Jaspers1 1Curriculum in Toxicology, Universit...

This presentation discusses the status of EPA&rsquo;s PFAS analytical program . This research is performed under multiple EPA National Research Programs (NRPs) including the Safe and Sustainable Water Resources (SSWR), Air and Energy (A-E), and Sustainable and Healthy Communit...

Air emissions of PFAS from industrial sources is now recognized as a significant route for PFAS releases to the environment and is evidenced by deposition as well as their presence in rainwater. States and Regions are among the first to investigate industrial emissions issues an...

Per- and poly-fluoroalkyl Substances (PFAS) contamination of groundwater sources in the U.S. is a widespread problem for the drinking water industry. Well water supplies in the municipalities of Fountain, Security, and Widefield, Colorado, contain Perfluorooctanoic Acid (PFOA) a...

The EPA is considering elongated mineral particulates (EMP) measurements to augment the results of ongoing particulate matter (PM) monitoring and the recently completed occupational work conducted during the Minnesota Taconite Workers Study, which included epidemiological evidenc...

Environmental geochemists frequently use archives of sediment, peat, and glacial ice to reconstruct historical trends in atmospheric mercury (Hg) deposition to ecosystems. These archives primarily record the deposition of inorganic Hg and fail to adequately reconstruct the histor...

This is a poster to be presented in a workshop organized by New York Academy of Sciences titled: Science for Decision-Making in a Warmer World: 10 Years of the NPCC. Abstract: Meeting increased energy demand exacerbated by resource scarcity and climate change presents a significa...

Vehicle automation has the potential to drastically transform the transportation system, which would in turn have energy and environmental implications. There is considerable uncertainty regarding the effect of automation on travel demand and efficiency, regarding the direction, ...

Inland waters (lakes, ponds, stream, rivers) are important in the global carbon cycle. Recent research shows that, from an atmospheric and climate change perspective, methane (CH4) is the most important of these, constituting >70% of the climate impact. Further, a recent analysis...

DNA methylation age (DNAm age) has become a widely utilized epigenetic biomarker for the aging process. The Horvath method for determining DNAm age is perhaps the most widely utilized and validated DNA methylation age assessment measure. Horvath DNAm age is calculated based on me...

Formaldehyde is an important hazardous air pollutant (HAP) that is a leading driver for HAP-related cancer risk in the United States. It is emitted directly by numerous anthropogenic and natural sources, and formed as a secondary product from volatile organic compounds (VOCs) ph...

Air pollution health studies often use outdoor concentrations from a central-site monitor as exposure surrogates. To improve exposure assessments, we previously developed and evaluated an exposure model for individuals (EMI), which predicts five tiers of individual-level exposure...