Secondary organic aerosol emissions aerosols. Medical search. Frequent questions

There is a lack of data on how renewable fuels change the semi-volatile organic fraction of exhaust emissions. (lu.se)
Here, we use an eight-year record (2005-2012) of formaldehyde measurements from space to constrain the emissions of volatile organic compounds (VOCs) in this region. (nature.com)
This interdisciplinary conference brings together researchers from plant physiology, ecology, atmospheric chemistry and climatology to study the function and impacts of biogenic volatile organic compounds emissions from plants. (grc.org)
Recent explorations into the volatile emissions from asphalt are beginning to show that roads release chemicals that can be harmful not just to the environment, but also to human health directly. (acs.org)
The term "secondary organic aerosol" means an air pollutant that is formed by the oxidation of volatile organic compounds. (nyc.gov)
Ozonolysis of Citral can produce low volatile organic compounds, which can form SOA. (aaqr.org)
Plant stress alters emissions of volatile organic compounds. (ubc.ca)
We made continuous measurements of concentrations of key pollutants (ozone, NO x , aerosol particles, CO, CO 2 and methane) and meteorology, and we collected periodic samples of air to analyse for volatile organic compounds. (copernicus.org)
Here we present the first inventory of volatile organic compound emissions from cannabis cultivation facilities (CCFs) for Colorado. (copernicus.org)
Substances like biogenic volatile organic compounds (BVOC), the various nitrogen oxides, carbonaceous particles, ozone or methane act in the atmosphere either directly as greenhouse gases and aerosols, or as key precursors for greenhouse gases and secondary organic aerosol. (lu.se)
There is probably no single one chemical exposure responsible for these illnesses, but more likely a mixed exposure of chemical classes such as particulate matter and oxygenated organic species (oxidized volatile organic compounds that are likely biologically reactive and potentially cause cell damage and increase susceptibility to disease). (cdc.gov)
The possible answers to these questions might be found in investigating the chemistry of volatile organic compounds found in the indoor environment, developing new sampling methods, and improving assessments of chemical health effects. (cdc.gov)
Some of these are volatile organic compounds, meaning they evaporate into the air, and others are non-volatile, meaning they adhere to the surface. (cdc.gov)

In contrast to primary organic aerosols, which are emitted directly from the biosphere, secondary organic aerosols are either formed via homogeneous nucleation through the successive oxidation of gas-phase organic compounds, or through condensation on pre-existing particles. (wikipedia.org)
SOAs are tiny particles that are formed in air and make up typically 40 percent to 60 percent of the aerosol mass in urban environments. (sciencedaily.com)
In Southern California, particles containing soot made up the largest fraction of submicron particles (~38% on average and up to ~89% by number), whereas organic carbon particles comprised the largest fraction of submicron number concentrations (~29% on average and up to ~78% by number) in Northern California including the Sacramento area. (noaa.gov)
The mixing state of these carbonaceous particle types varied during the cruise with sulfate being more prevalent on soot-containing particles in Southern California due to the influence of fresh shipping and port emissions in addition to contributions from marine biogenic emissions. (noaa.gov)
These regional differences and changes in the mixing state and sources of particles have implications for heterogeneous reactivity, water uptake, and cloud-nucleating abilities for aerosols in California. (noaa.gov)
UC Davis' aerosol mass spectrometer for measuring the size and composition of particles in the atmosphere. (ucdavis.edu)
A tentative explanation is that sulfate particles are increasingly coated by organic material, retarding the uptake of ammonia. (nasa.gov)
In this work, we produced carbonaceous aerosol particles from the combustion of three biomass fuels (pine needles, hickory twigs, and oak foliage). (nsf.gov)
Aerosol particles and their role for clouds and climate is an important part of climate research and of huge importance for air quality around the world. (lu.se)
VHL is equipped with meteorological instrumentation and can measure gases, aerosol particles, and precipitation chemistry. (lu.se)

In order to characterize and explain the difference in exhaust emissions from fossil diesel, HVO and RME fuels, particulate matter (PM) emissions were sampled at two exhaust positions of an experimental single cylinder Scania D13 heavy-duty (HD) diesel engine: at the exhaust manifold, and after a diesel oxidation catalyst (DOC). (lu.se)
When the emissions were aged in an oxidation flow reactor to simulate secondary organic aerosol (SOA) formation in the atmosphere, it was found that OA concentration strongly increased for all fuels. (lu.se)
A secondary organic aerosol (SOA) is a molecule produced via oxidation over several generations of a parent organic molecule. (wikipedia.org)
After sufficient oxidation, the vapor pressure is sufficiently low that the gas-phase compound partitions into the solid-phase, producing secondary organic matter (the particle phase of secondary organic aerosol). (wikipedia.org)
Healthy Canary Island pine (HCIP) and stressed Canary Island pine (SCIP) aerosols were generated in a 5 m 3 environmental chamber at 35-84% relative humidity and room temperature via OH-initiated oxidation. (ubc.ca)
The gas-phase nitrate radical (NO3*) initiated oxidation of limonene can produce organic nitrate species with varying physical properties. (gu.se)
the subsequent atmospheric oxidation of BVOCs and their secondary organic aerosol (SOA) formation potential, with consequences for clouds, global radiation and precipitation. (lu.se)
Flow reactors and chambers are used to test reaction mechanisms and aerosol processes, while larger oxidation chambers and the access to European infrastructures within strategic research collaboration, e.g. the Plan chamber in Julich and the SAPHIR chamber, allow to mimick atmospheric conditions. (lu.se)
In particular, we investigate the impacts of using different methods to estimate compound vapour pressures as well as simulating the formation of highly oxygenated organic molecules (HOM) via auto-oxidation on SOA formation indoors. (cdc.gov)

Biogenic emissions of isoprene and monoterpenes are simulated interactively using the Model of Emissions of Gases and Aerosols (MEGAN2) within the Community Land Model (CLM3). (escholarship.org)
This work presents the measurement results from flow reactor studies on the reaction of NO3 with limonene using a High-Resolution Time-of-Flight Chemical Ionization Mass Spectrometer (HR-ToF-CIMS) combined with a Filter Inlet for Gases and AEROsols (FIGAERO). (gu.se)
Purpose: To explore the chemical composition of low-volatility gas and aerosol-phase species, formed from mixtures of N2O5 and limonene, as measured by a High Resolution Time-of-Flight Chemical Ionization Mass spectrometer (HR-ToF-CIMS) coupled to a Filter Inlet for Gases and AEROsols (FIGAERO) inlet. (gu.se)

While diesel engines emit other pollutants such as soot and nitrogen oxides, for organic aerosol pollution they are not the primary culprit," Bahreini said. (sciencedaily.com)
The emission factors of all the toxic organic pollutants increased drastically when the fuel injection timing was retarded. (aaqr.org)
Stricter emission standards on the conventional pollutants like NO x and PM has led to the adoption of aftertreatment technologies over the years. (aaqr.org)
Students in the atmospheric chemistry and air quality program at Davis study a wide range of questions regarding the emission, transformation, transport and deposition of air pollutants. (ucdavis.edu)

The carbon monoxide (CO) and particulate matter (PM) emissions were 1.4 and 1.2 times higher for the -6° scenario, respectively. (aaqr.org)
A study investigating the use of mid-infrared spectrometry as a field-portable, real-time method for measuring elemental and organic carbons in diesel particulate matter aerosols. (cdc.gov)

Advanced analyzing techniques were used to characterize the composition of the organic PM. Special attention was paid to an operating point at 18% intake oxygen level with constant engine operating conditions where the emission level of nitrogen oxides (NOx) was low, and carbon monoxide (CO) and total hydrocarbon (THC) were relatively low. (lu.se)
Through the inclusion of the Estimating Air pollution Social Impact Using Regression (EASIUR) and Air Pollution Emission Experiments and Policy analysis (AP2) models, we are developing scenarios including but not limited to: region specific criteria pollutant regulations that vary by source, sector, and marginal damage to the environment, as well as carbon emission caps and taxes. (epa.gov)
Hygroscopic growth of water soluble organic carbon isolated from atmospheric aerosol collected at US national parks and Storm Peak Laboratory. (utah.edu)
Summer predictors of 1-NP, including distance to railroad, truck emissions, and mobile black carbon measurements, showed a greater specificity to diesel sources than predictors of other NPAHs. (cdc.gov)
According to the trade group National Asphalt Pavement Association , between 2009 and 2019, US greenhouse gas emissions from the manufacture of asphalt mix hovered at around 20 million metric tons of carbon dioxide equivalent annually-which in 2019 would have amounted to about 0.3% of the US total of such emissions. (acs.org)
This bill would require the Department of Transportation to conduct a pilot program to study materials that are known or reasonably believed to result in lower emissions of carbon dioxide and secondary organic aerosols as alternatives to asphalt in street resurfacing and construction projects and to provide a report on the results of such study. (nyc.gov)
Based on extracted mass spectra and the likely elemental compositions of major m/z's, the organic mass to organic carbon ratios (OM:OC) of HOA and OOA are estimated at 1.2 and 2.2 µg/µgC, respectively, leading to an average OM:OC ratio of 1.8 for submicron OA in Pittsburgh during September. (nasa.gov)
The carbon contents in HOA and OOA estimated accordingly correlate well to primary and secondary organic carbon, respectively, estimated by the OC/EC tracer technique (assuming POC-to-EC ratio=1). (nasa.gov)
With the majority of carbonaceous aerosols (CA), including black carbon (BC) and brown carbon (BrC), over the U.S. dominated by emissions from Northwestern wildfires, this month presented a unique opportunity for testing wildfire BrC representation in the Weather Research and Forecasting model with chemistry (WRF-Chem). (nsf.gov)
The terrestrial carbon cycle and aerosol-cloud-climate interactions are key components in the climate system, but they are complex to describe in climate models. (lu.se)

We also implement new mobile-source emission profiles that quantify all IVOCs based on direct measurements. (copernicus.org)
The overarching theme of Dr. Hallar's research is using high quality measurements of trace gases, aerosol physical and chemical properties, and cloud microphysics to understand connections between the biosphere, atmosphere, and climate, along with the impact of anthropogenic emissions on these connections. (utah.edu)
aerosol composition measurements. (atmoschem.org.cn)
Coordinated measurements from six ground sites, four aircraft, tall towers, balloon-borne sondes, existing surface networks, and satellites provide in situ and remotely sensed data on trace-gas composition, aerosol physicochemical properties, and local and synoptic meteorology. (ametsoc.org)

The later includes enhanced biogenic SOA formation due to increased emissions of primary organic aerosol (5-25% increases in surface SOA concentrations in 2100). (escholarship.org)
If the scientists were to apply their findings from the LA study to the rest of the world, a decrease in the emission of organic species from gasoline engines may significantly reduce SOA concentrations on a global scale as well. (sciencedaily.com)
Crop burning is calculated to cause important increases in surface ozone (+7%) and fine aerosol concentrations (+18%) in the North China Plain in June. (nature.com)
The results are used here to characterize the mass concentrations, size distributions, and mass spectra of hydrocarbon-like and oxygenated organic aerosol (HOA and OOA, respectively). (nasa.gov)
Equally important is to account for past environments so as to improve Holocene calculations of terrestrial emissions which have an effect on, e.g., the atmosphere's level of oxidants and thus methane lifetime and concentration, the preindustrial burden of O 3 and hence its present anthropogenic radiative forcing, as well as estimates of the continental pristine SOA particle concentrations which affect cloud physics. (lu.se)
A study assessing both the relative contributions different types of vehicles make to diesel aerosol concentrations and the effectiveness of control strategies and technologies. (cdc.gov)

The sensitivity of secondary organic aerosol (SOA) concentration to changes in climate and emissions is investigated using a coupled global atmosphere-land model driven by the year 2100 IPCC A1B scenario predictions. (escholarship.org)
After emission into the atmosphere, these highly reduced organic compounds undergo photochemical transformations that can increase the production of smog, particularly in urban environments. (grc.org)
New modelling approaches including models with fully coupled atmosphere, vegetation and soil matrices led to improved interpretations of the spectral and spatio-temporal variability of RS signals including those of atmospheric aerosols and water vapour. (copernicus.org)

For that reason dynamic global vegetation models are increasingly being developed to improve their capacity to simulate emissions of non-CO 2 trace gases. (lu.se)

SOAs represent a significant proportion of aerosols contained in the troposphere. (wikipedia.org)

We describe simulations using an updated version of the Community Multiscale Air Quality model version 5.3 (CMAQ v5.3) to investigate the contribution of intermediate-volatility organic compounds (IVOCs) to secondary organic aerosol (SOA) formation in southern California during the CalNex study. (copernicus.org)
We first derive a model-ready parameterization for SOA formation from IVOC emissions from mobile sources. (copernicus.org)
The DOC was also effective in reducing secondary organic aerosol formation upon atmospheric aging. (lu.se)
Secondary Organic Aerosol Formation from Low-NOx Photooxidation of Dodecane: Evolution of Multigeneration Gas-Phase Chemistry and Aerosol Composition" (PDF). (wikipedia.org)
The resultant negative impact on combustion increased the emissions of products of incomplete combustion, enhancing the potential of POP formation via de novo synthesis. (aaqr.org)
A major research area in atmospheric chemistry focuses on the formation of secondary organic aerosol (SOA), which contains a large variety of low-volatility organic compounds when generated by the ozonolysis of monoterpenes. (aaqr.org)
If sulfate aerosol becomes more acidic as OA / sulfate ratios increase, then controlling SO2 emissions to decrease sulfate aerosol will not have the co-benefit of suppressing acidcatalyzed secondary organic aerosol (SOA) formation. (nasa.gov)
Low-volatility products can contribute to secondary organic aerosol (SOA) formation and organic nitrates may serve as a NOx reservoir, which could be especially important in regions with high biogenic emissions. (gu.se)
We attributed this discrepancy to missing scattering due to missing secondary organic aerosol (SOA) formation from wildfire emissions in the model. (nsf.gov)
Our findings indicate that BrC absorption, the decay of its absorption due to photobleaching, as well as SOA formation should be accounted for in chemical transport models in order to accurately represent CA emissions from wildfires. (nsf.gov)
The formation of secondary organic aerosol (SOA) indoors is one of the many consequences of the rich and complex chemistry that occurs therein. (cdc.gov)

In the Los Angeles region, gasoline sources emit 4 times more non-methane organic gases (NMOGs) than diesel sources, but diesel emits roughly 3 times more IVOCs on an absolute basis. (copernicus.org)
A way to reduce harmful exhaust and greenhouse gas (GHG) emissions and secure the sources of energy is to develop technology for an efficient diesel engine operation independent of fossil fuels. (lu.se)
On-line aerosol mass spectrometry (AMS) suggests that the chemical composition of the organic aerosols (OAs) was similar for HVO and diesel. (lu.se)
The exhaust fumes from gasoline vehicles contribute more to the production of a specific type of air pollution-secondary organic aerosols -than those from diesel vehicles, according to a new study. (sciencedaily.com)
The exhaust fumes from gasoline vehicles contribute more to the production of a specific type of air pollution -- secondary organic aerosols (SOA) -- than those from diesel vehicles, according to a new study by scientists from the Cooperative Institute for Research in Environmental Sciences (CIRES), NOAA's Earth System Research Laboratory (ESRL) and other colleagues. (sciencedaily.com)
The surprising result we found was that it wasn't diesel engines that were contributing the most to the organic aerosols in LA," said CIRES research scientist Roya Bahreini, who led the study and also works at NOAA's ESRL. (sciencedaily.com)
Retarding the fuel injection timing is an effective strategy for controlling NO x emissions from diesel engines. (aaqr.org)
The fuel injection timing was retarded from -8° to -6° and the diesel exhaust gas samples were analyzed for PAH and POP emissions. (aaqr.org)
The study concludes that although retarding the fuel injection timing leads to a decrease in NO x emissions from diesel engines, it also results in an increase in PAH and POP emissions. (aaqr.org)
1989. Factors influencing the composition of the organic fraction of diesel particulates. (cdc.gov)
A study examining diesel emissions control strategies based on retrofitting existing power packages with exhaust aftertreatment devices and repowering with advanced power packages. (cdc.gov)

The over-arching objective of Project 4 is to develop and demonstrate a comprehensive policy assessment framework that is both broad (multipollutant) and tall (from scenario specification to emissions to impacts). (epa.gov)
Impacts of increasing aridity and wildfires on aerosol loading in the intermountain Western US. (utah.edu)
My research interests are in the mechanisms and impacts of air pollution, atmospheric chemistry, and chemistry-climate interactions, with particular emphases on organic gases and organic aerosols. (atmoschem.org.cn)
The SAS dataset, now publicly available, is a powerful constraint to develop predictive capability that enhances model representation of the response and subsequent impacts of changes in atmospheric composition to changes in emissions, chemistry, and meteorology. (ametsoc.org)

Our study indicates that the top-down crop burning fluxes of VOCs in June exceed by almost a factor of 2 the combined emissions from other anthropogenic activities in this region, underscoring the need for targeted actions towards changes in agricultural management practices. (nature.com)
Under less polluted conditions, biogenic VOCs form secondary organic aerosols, which can modify cloud properties and hence interact with radiative balance and the climate. (grc.org)

and the Nitrogen, Oxidants, Mercury and Aerosols: Distributions, Sources and Sinks (NOMADSS) study, was deployed in the field from 1 June to 15 July 2013 in the central and eastern United States, and it overlapped with and was complemented by the Studies of Emissions, Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC 4 RS) campaign. (ametsoc.org)
This includes representation of the full terrestrial nitrogen cycle and hence emissions of nitrogen oxides, emissions of BVOC, accounting for wetlands and emissions of methane, and inclusion of fire as a naturally- or anthropogenically-caused episodic event. (lu.se)

The purpose of this work is to assess the efficiency of regulating emissions homogeneously as is done currently in the United States and compare this status quo to a set of regulations that vary according to the magnitude of damage caused by the emission of a specific species in a specific location. (epa.gov)
Contributions from secondary organic aerosol species, including amines, and nitrate were more prevalent in Northern California, as well as during time periods impacted by agricultural emissions (e.g., from the inland Riverside and Central Valley regions). (noaa.gov)
Averaged over all experiments, the majority of the carbonaceous aerosol species were attributed to MSBrC (90% ± 5%), while MIBrC and EC constituted 9% ± 5% and 1% ± 0.5%, respectively. (nsf.gov)

NIOSH research has shown that when combined with ozone, one of the common components of pine oil cleaners, alpha-terpineol, transforms into many oxygenated organic compounds in both the gas-phase and on surface reactions creating new products potentially harmful to those exposed. (cdc.gov)

By incorporating both comprehensive mobile-source emission profiles for semivolatile organic compounds (SVOCs) and IVOCs and experimentally constrained SOA yields, this CMAQ configuration best represents the contribution of mobile sources to urban and regional ambient organic aerosol (OA). (copernicus.org)
The low-volatility organic compounds potentially arising from the ozonolysis of citral, including aldehydes (-C(=O)H), ketones (-C(=O)-), alcohols (-OH), and hydroperoxides (-OOH), can form SOA through the nucleation, condensation, and/or partitioning of the condensed and gaseous phases. (aaqr.org)
10 compounds) can reproduce the viscosities of SOA observed from the more complex real plant emissions. (ubc.ca)

1983. Chemical and biological characterization of emissions from coal- and oil-fired power plants. (cdc.gov)

South America is the largest global source region for SOA in the present day and 2100, but Asia experiences the largest relative growth in SOA production by 2100 because of the large predicted increases in Asian anthropogenic aromatic emissions. (escholarship.org)

Professor Jin's research interest in air quality is focused on wildfire emissions. (ucdavis.edu)

Research projects include measurement and modeling of emission, deposition and dispersion on scales ranging from the microscale processes around individual plants to mesoscale flows over an entire state. (ucdavis.edu)
Detailed chemical and aerosol processes are tested in process models where explicit formulations can be used. (lu.se)

The projected decrease in global sulfur emissions implies that SOA will contribute a progressively larger fraction of the global aerosol burden. (escholarship.org)
The increased viscosity for the aphid-stressed pine tree SOA was attributed to the increased fraction of sesquiterpenes in the emission profile. (ubc.ca)

She uses remote sensing techniques to improve the estimates of burned area, fuel loading, tree mortality, and combustion completeness, and thus reduce the uncertainties in fire emission estimate. (ucdavis.edu)
These observa4 4 tions suggest that HOA is likely primary aerosol from local, combustion-related emissions and that OOA is secondary organic aerosol (SOA) influenced by regional contributions. (nasa.gov)

However, RME both reduced the OA emissions and changed the composition with evidence for fuel signatures in the mass spectra. (lu.se)
The DOC strongly reduced primary organic emissions in both the gas (THC) and particle phase (OA) and only marginally affected OA composition. (lu.se)
Within the drivers of surface composition are the roles of adsorbed/absorbed water associated with indoor surfaces and the prevalence, inhomogeneity, and properties of secondary organic films that can impact surface reactivity. (cdc.gov)

SOA in 2100 from the net effect of climate and emissions (67% increase predicted). (escholarship.org)
A primary focus of this research is to examine differences in technology trajectories that could be used to efficiently meet future air-quality regulations, climate emissions regulations, as well as both air-quality and climate regulations in tandem. (epa.gov)
Atmospheric aerosols significantly affect the earth's radiation balance by absorbing and scattering solar radiation, leading to a decrease in atmospheric visibility and contributing to climate change. (aaqr.org)
However, little is known about how this could influence climate-relevant properties of secondary organic aerosol (SOA), particularly from complex mixtures such as real plant emissions. (ubc.ca)
Trace gas emission modelling is not only important for future chemistry-climate and chemistry-climate-feedback studies. (lu.se)
The overall aim of RA3 is to formulate and validate a model framework - linking vegetation, aerosols, clouds and their climate feedbacks. (lu.se)

We are focusing on modeling greenhouse gas (GHG) and criteria air pollutant (CAP) emissions under several different future policy scenarios. (epa.gov)

Responsibility for air pollution is commonly attributed to the physical entities that release emissions, such as power plants, factories, farms, and vehicles. (epa.gov)
We saw evidence that plumes of pollution from the city, strong local emissions and pollution from distant sources all contribute to regional pollution. (copernicus.org)

2005) has been applied to deconvolve the mass spectra of organic aerosols acquired with the Aerosol Mass Spectrometer (AMS) in Pittsburgh during September 2002. (nasa.gov)

However, the influence of retarding the fuel injection timing on polycyclic aromatic hydrocarbon (PAH) and persistent organic pollutant (POP) emissions has not yet been investigated. (aaqr.org)

Therefore, IVOCs in mobile-source emissions contribute almost as much SOA as traditional precursors such as single-ring aromatics. (copernicus.org)

2021. Outdoor/indoor contaminant transport by atmospheric dust and aerosol at an active smelter site. (nih.gov)

This uptake of ammonia has important implications for aerosol mass, hygroscopicity, and acidity. (nasa.gov)
We implement a simple kinetic mass transfer limitation for ammonia uptake to sulfate aerosols in the GEOS-Chem chemical transport model and find that we can reproduce both the observed ammonium-sulfate aerosol ratios and the concurrent presence of gas-phase ammonia. (nasa.gov)

We used a comprehensive set of extensive and pseudo-intensive optical properties, namely the aerosol optical depth (AOD), aerosol absorption optical depth (AAOD), absorption Ångström exponent (AAE), and single scattering albedo (SSA) to constrain the model output against observations from the Aerosol Robotic Network (AERONET). (nsf.gov)

We needed to do the study in a location where we could separate the contribution from vehicles from that of natural emissions from vegetation," Bahreini said. (sciencedaily.com)
Figure 1.Simulated future leaf area index and forest isoprene emissions at a location in southern Sweden using the dynamic global vegetation model LPJ-GUESS. (lu.se)

Identification of topographic features influencing aerosol observations at high altitude stations. (utah.edu)
Large Contribution of Coarse Mode to Aerosol Microphysical and Optical Properties: Evidence from Ground-based Observations of a Trans-Pacific Asian Dust Outbreak at a High-Elevation North American Site. (utah.edu)
We found that accounting for BrC absorption and photobleaching resulted in the best agreement with observations in terms of aerosol absorption (AAOD and AAE). (nsf.gov)

This suggests future research aimed at understanding ways to reduce gasoline emissions would be valuable. (sciencedaily.com)

A common misconception is that the aerosol refers to the solid phase of the compound, where in reality, by definition, it is the combination of the gas- and solid-phases which constitute the aerosol. (wikipedia.org)
When ammonia is in excess, the ammonium-sulfate aerosol ratio R = [NH+ 4 ] / [S(VI)] should approach 2, with excess ammonia remaining in the gas phase. (nasa.gov)
When ammonia is in deficit, it should be fully taken up by the aerosol as ammonium and no significant ammonia should remain in the gas phase. (nasa.gov)

Professor Cappa's research is focused on the study of physical, chemical and optical properties of atmospheric aerosols. (ucdavis.edu)

Anatomy3

Organisms1

Diseases4

Chemicals and Drugs42

Analytical, Diagnostic and Therapeutic Techniques and Equipment20

Phenomena and Processes15

Disciplines and Occupations5

Technology, Industry, Agriculture6

Information Science1

Health Care20

Volatile13

Particles10

Oxidation9

Gases and Aerosols3

Pollutants4

Particulate matter2

Carbon10

Measurements4

Concentrations6

Atmosphere3

Trace gases1

SOAs1

Formation11

Diesel11

Impacts4

VOCs2

Nitrogen2

Species3

Ozone1

Compounds3

Characterization1

Anthropogenic1

Wildfire1

Processes2

Fraction2

Combustion2

Composition3

Climate6

Greenhouse gas1

Pollution2

Mass spectra1

Aromatic1

Precursors1

Indoor1

Uptake2

Constrain1

Vegetation2

Observations3

Gasoline1

Phase3

Optical Properties1