Mass Concentration
Dependence of SOA oxidation on organic aerosol mass concentration and OH exposure: experimental PAM chamber studies
... OA mass concentration was measured by the ...OA mass concentration, f 43 , and f 44 are at the 1σ confidence ...OH concentration of ...OA mass concentration ...
16
Profiling the PM<sub>2.5</sub> mass concentration vertical distribution in the boundary layer
... 5 mass concentration profile is very essential due to its practical and scientific sig- nificance (such as the quantification of air quality and its variability as well as the assessment[r] ...
8
Volcanic ash from Iceland over Munich: mass concentration retrieved from ground-based remote sensing measurements
... the concentration of stratospheric aerosols is usually very low, they can have notable impact on global climate, because of their large scale dispersion and their long residence times which is in the order of ...
46
Profiling the PM<sub>2.5</sub> mass concentration vertical distribution in the boundary layer
... The specific coe ffi cient K , which is related to aerosol size distribution, refractive index, and atmospheric relative humidity, may contain a fix value under the suit- 10. able condit[r] ...
21
Mass concentration of Hirnantian cephalopods from the Siljan District, Sweden; taxonomy, palaeoecology and palaeobiogeographic relationships
... The Hirnantian Glisstjrn Formation (Normalograptus persculptus graptolite Biozone) is a succession of limestones and shales onlapping the Katian Boda Limestone in the Siljan District, Sweden. It contains a conspicuous, ...
19
Fluorescent bioaerosol particle, molecular tracer, and fungal spore concentrations during dry and rainy periods in a semi-arid forest
... particle mass for comparison between all ...to mass distributions assuming spherical particles of unit par- ticle mass density, unless otherwise stated, as a first approxi- ...particle ...
20
Optimized method for black carbon analysis in ice and snow using the Single Particle Soot Photometer
... Q require small sample volumes (few milliliters) which makes them suitable for ice core analysis. The APEX-Q shows the least size-dependent nebulizing efficiency in the BC particle diameter range of 100–1000 nm. The ...
37
Lat. Am. j. solids struct. vol.11 número2
... MATLAB software 7.04 has been used for numerical computation of the resulting quantities. The values of phase velocity and attenuation coefficient with wave number at the stress free boundary with thermally insulated and ...
22
Observational study of aerosol hygroscopic growth factors over rural area near Beijing mega-city
... air mass concentration and chemical compositions (Table ...air mass back-trajectories were used by means of the Hybrid Single-particle Lagrangian Inte- grated Trajectory (HYSPLIT) model (Draxler and ...
32
Effects of sea surface winds on marine aerosols characteristics and impacts on longwave radiative forcing over the Arabian Sea
... number concentration, mass concentration, scattering and extinction coefficients, and spectral optical depths of marine aerosols have been investigated in the past ...
45
Comparison between CARIBIC aerosol samples analysed by accelerator-based methods and optical particle counter measurements
... ice concentration (ppmv) and OPC volume to IBA mass concentration ratio (C V /C m ; cm 3 g −1 ...air mass type according to the legend of ...
47
Seasonality of ultrafine and sub-micron aerosols and the inferences on particle formation processes
... number concentration of submicron particles, in particular UFPs, are still dominated by local emissions during the episodes of con- tinental pollution ...UFPs mass concentration that peaked in ...
33
Diesel-related hydrocarbons can dominate gas phase reactive carbon in megacities
... (top), mass concentration (middle) and primary hydrocarbon hydroxyl radical (OH) reactivity (bottom), calculated by carbon num- ber, and split according to emission ...the mass concentration ...
14
Saharan dust levels in Greece and received inhalation doses
... enhanced concentration for particles with aerodynamic diameters 3–7 µm (physical diameters ...particle mass distribution (particle mass distribu- tion divided to mass concentration) ...
12
Evaluation of regional background particulate matter concentration based on vertical distribution characteristics
... background concentration of PM for the development of efficient and effective joint control ...PM concentration is proposed in this paper, based on the ver- tical characteristics of periodic variation in ...
13
Organic aerosol concentration and composition over Europe: insights from comparison of regional model predictions with aerosol mass spectrometer factor analysis
... OA mass observed at Finokalia during May 2008 compared to the base-case one-bin ...tion concentration reduction) with a reduced OH reaction rate constant and found both to perform ...OA mass ...
16
Formation and chemical aging of secondary organic aerosol during the β-caryophyllene oxidation
... actor (Welch Fluorocarbons). A major complication in smog chamber experiments is that particles and potentially vapors are continuously lost to the walls of the reactor. As a result the number and the mass ...
29
Mass-specific optical absorption coefficients and imaginary part of the complex refractive indices of mineral dust components measured by a multi-wavelength photoacoustic spectrometer
... Abstract. Mass-specific optical absorption coefficients (MACs) and the imaginary part (κ) of the refractive indices of various mineral dust components including silicate clays (illite, kaolin and bentonite), ...
10
J. Braz. Soc. Mech. Sci. & Eng. vol.33 número1
... and mass transfer which occurs in the fields of design of chemical processing equipment, formation and dispersion of fog, distributions of temperature and moisture over agricultural fields and groves of fruit ...
7
Characterisation and modelling of transient transport through dense membranes using on-line mass spectrometry
... A mass spectrometer characterises compounds according to their specific mass to charge ratio (m/z) and intensity of electric signal, providing a characteristic mass spectra of a specific ...the ...
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