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Records 76 to 100 of 2974 records about 'Air' published between 01/16/2013 and 01/16/2018

2017
Air Quality and Heart Health: Managing an Emerging Cardiovascular Risk Factor
(PRESENTATION) [Presented : Mar 14, 2017]
Dr. Cascio will share with a broad range of federal agencies current understanding of the links between air quality and cardiovascular health. The key facts include that air pollution contributes a high attributable health burden. That certain well-defined vulnerable subpopulat...
Air pollution abatement with green infrastructure : Reviews and Prospects
(PRESENTATION) [Presented : Sep 19, 2017]
Review of the use of green infrastructure for local air quality mitigation
Air quality modeling for community-scale assessments around airports
(PRESENTATION) [Presented : Oct 12, 2017]
Transportation infrastructure (including roadway traffic, ports, and airports) is critical to the nation’s economy. With a growing economy, aircraft activity is expected to grow across the world, and in the U.S. airport-related emissions, while generally small, are not an i...
Alterations in airway microbiota in patients with PaO2/FiO2 ratio ≤ 300 after burn and inhalation injury
(JOURNAL) [Published : Mar 30, 2017]
BACKGROUND: Injury to the airways after smoke inhalation is a major mortality risk factor in victims of burn injuries, resulting in a 15-45% increase in patient deaths. Damage to the airways by smoke may induce acute respiratory distress syndrome (ARDS), which is partly character...
Alternative futures of dissolved inorganic nitrogen export from the Mississippi River Basin: influence of crop management, atmospheric deposition, and population growth
(JOURNAL) [Published : May 01, 2017]
Nitrogen (N) export from the Mississippi River Basin contributes to seasonal hypoxia in the Gulf of Mexico (GOM). We explored monthly dissolved inorganic N (DIN) export to the GOM for a historical year (2002) and two future scenarios (year 2022) by linking macroeonomic energy, ag...
An Artificial Turf-Based Surrogate Surface Collector for the Direct Measurement of Atmospheric Mercury Dry Deposition
(JOURNAL) [Published : Feb 10, 2017]
This paper describes the development of a new artificial turf surrogate surface (ATSS) sampler for use in the measurement of mercury (Hg) dry deposition. In contrast to many existing surrogate surface designs, the ATSS utilizes a three-dimensional deposition surface that may more...
An EPA pilot study characterizing fungal and bacterial populations at homes after flooding events at the Martin Peña Channel community-Puerto Rico
(PRESENTATION) [Presented : Jun 09, 2017]
The overall objective of this program is to characterize fungal and bacterial populations in the MPC residences in San Juan, Puerto Rico, following flooding events. These profiles will be generated by comparing the fungal and bacterial populations in two groups of residences: hom...
An Integrated View of Air Mutagenicity
(PRESENTATION) [Presented : Dec 08, 2017]
The mutagenic potency of ambient air particulate material (PM) in the Salmonella mutagenicity assay (revertants/mg PM) varies only ~1 order of magnitude worldwide; however, the mutagenic potency of the air itself (revertants/m3 of air) varies ~5 orders of magnitude (IARC Monograp...
An Introduction to Air Quality Modeling
(PRESENTATION) [Presented : Jul 21, 2017]
Empowering Sustainability is an initiative at the University of California, Irvine, dedicated to connecting sustainability leaders (fellows) across generations, countries, and disciplines through the exchange of ideas and experiences related to all aspects of sustainability, and ...
An Overview of Recent Building Downwash Research at EPA/ORD (2017 Regional, State, and Local Modelers' Workshop Presentation)
(PRESENTATION) [Presented : Sep 26, 2017]
Knowing the fate of effluent from an industrial stack is important for assessing its impact on human health. AERMOD is one of several Gaussian plume models containing algorithms to evaluate the effect of buildings on the movement of the effluent from a stack. This presentation ...
An Update on Modifications to Water Treatment Plant Model
(PRESENTATION) [Presented : Nov 15, 2017]
Water treatment plant (WTP) model is an EPA tool for informing regulatory options. WTP has a few versions: 1). WTP2.2 can help in regulatory analysis. An updated version (WTP3.0) will allow plant-specific analysis (WTP-ccam) and thus help meet plant-specific treatment objectives...
An approach to measure parameter sensitivity in watershed hydrological modelling
(JOURNAL) [Published : Jan 16, 2017]
Hydrologic responses vary spatially and temporally according to watershed characteristics. In this study, the hydrologic models that we developed earlier for the Little Miami River (LMR) and Las Vegas Wash (LVW) watersheds were used for detail sensitivity analyses. To compare the...
Analysis of Emission Reduction Strategies for Power Boilers in the US Pulp and Paper Industry.
(JOURNAL) [Published : Aug 04, 2017]
The U.S. pulp and paper industry utilizes a variety of fuels to provide energy for process needs. Energy production results in air emissions of sulfur dioxide (SO2), nitrogen oxides (NOX), particulate matter (PM), and greenhouse gases such as carbon dioxide (CO2). Air emissions f...
Analysis of Metallic and Metal Oxide Nanomaterial Environmental Emissions
(JOURNAL) [Published : Feb 01, 2017]
The current study presents evidence on metallic and metal oxide engineered nanomaterial (ENM) emissions into the environment and an analytic perspective of the outcomes of evaluated studies with respect to different individual end points along the lifecycle trajectory. The key fi...
Application of Lidar Data to the Performance Evaluations of CMAQ Model
(PRESENTATION) [Presented : Jan 26, 2017]
The Tropospheric Ozone (O3) Lidar Network (TOLNet) provides time/height O3 measurements from near the surface to the top of the troposphere to describe in high-fidelity spatial-temporal distributions, which is uniquely useful to evaluate the temporal evolution of O3 profiles in a...
Application, evaluation and sensitivity analysis of the coupled WRF-CMAQ system from regional to urban scales
(PRESENTATION) [Presented : Dec 15, 2017]
The Community Multiscale Air Quality (CMAQ) model is a state-of-the-science chemical transport model (CTM) capable of simulating the emission, transport and fate of numerous air pollutants. Similarly, the Weather Research and Forecasting (WRF) model is a state-of-the-science mete...
Applying Aggregate Exposure Pathway and Adverse Outcome Pathway frameworks to link toxicity testing data to exposure-relevant and biologically-relevant responses
(PRESENTATION) [Presented : Jul 13, 2017]
Hazard assessment for nanomaterials often involves applying in vitro dose-response data to estimate potential health risks that arise from exposure to products that contain nanomaterials. However, much uncertainty is inherent in relating bioactivities observed in an in vitro syst...
Are Changing Emission Patterns Across the Northern Hemisphere Influencing Long-range Transport Contributions to Background Air Pollution?
(PRESENTATION) [Presented : Dec 15, 2017]
Air pollution reduction strategies for a region are complicated not only by the interplay of local emissions sources and several complex physical, chemical, dynamical processes in the atmosphere, but also hemispheric background levels of pollutants. Contrasting changes in emissio...
Assessing Exposure to Household Air Pollution: A Systematic Review and Pooled Analysis of Carbon Monoxide as a Surrogate Measure of Particulate Matter
(JOURNAL) [Published : Jul 28, 2017]
ACKGROUND: Household air pollution from solid fuel burning is a leading contributor to disease burden globally. Fine particulate matter (PM2.5) is thought to be responsible for many of these health impacts. A co-pollutant, carbon monoxide (CO) has been widely used as a surrogate...
Assessing Model Characterization of Single Source Secondary Pollutant Impacts Using 2013 SENEX Field Study Measurements
(JOURNAL) [Published : Apr 04, 2017]
Aircraft measurements made downwind from specific coal fired power plants during the 2013 Southeast Nexus field campaign provide a unique opportunity to evaluate single source photochemical model predictions of both O3 and secondary PM2.5 species. The model did well at predicting...
Assessing Temperature Risk to Crab in the Northeast Pacific (Southern California to the Beaufort Sea)
(PRESENTATION) [Presented : Nov 09, 2017]
To evaluate the vulnerability of the Brachyura crabs (<200 m) to projected increases in sea surface temperature (SST), we developed an approach that evaluates risk within each of the ten Marine Ecoregions of the World (MEOW) ranging from Southern California to the Beaufort Sea...
Assessing the Energy and Emissions Implications of Alternative Population Scenarios Using a State-Level Integrated Assessment Model
(PRESENTATION) [Presented : Dec 15, 2017]
We use GCAM-USA to examine the sensitivity of energy demands and resulting pollutant emissions and health impacts to differing population projections. The population projections are based on future fertility, mortality, migration and education assumptions consistent with the five...
Assessing the Social and Environmental Costs of Institution Nitrogen Footprints
(JOURNAL) [Published : Apr 13, 2017]
We estimate the damage costs associated with the institutional nitrogen (N) footprint and explore how this information could be used to create more sustainable institutions. Potential damages associated with the release of NOx and N2O to air and release of N to water were estima...
Assessing the Social and Environmental Costs of Institutional Nitrogen Footprints.
(PRESENTATION) [Presented : Aug 11, 2017]
Background/Question/Methods: Release of N to air, land and water has a host of effects on human health, ecosystems and the economy, many of which scientists and economists are just beginning to develop methods to quantify. In order to understand the broader connections to sustai...