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Measurements of Gaseous NH3 and Particulate NH4 + in the Atmosphere by Fluorescent Detection after Continuous Air–water Droplet Sampling
Ammonia Gas-particle partitioning Microflow analysis Short-term variation
2016/3/28
Phase partitioning of NHx (gaseous NH3 and particulate NH4
+) in the atmosphere is crucial for the lifetime of NHx
during atmospheric transport. Reliable data for gaseous NH3 and NH4
+ in aerosols ...
Some implications of sampling choices on comparisons between satellite and model aerosol optical depth fields
sampling choices satellite and model aerosol optical depth fields
2010/11/30
The comparison of satellite and model aerosol optical depth (AOD) fields provides useful information on the strengths and weaknesses of both. However, the sampling of satellite and models is very diff...
CO2, δO2/N2 and APO: observations from the Lutjewad, Mace Head and F3 platform flask sampling network
CO2, δO2/N2 and APO the Lutjewad, Mace Head and F3 platform flask sampling network
2010/11/30
We report results from our atmospheric flask sampling network for three European sites: Lutjewad in the Netherlands, Mace Head in Ireland and the North Sea F3 platform. The air samples from these stat...
Improved measurement of carbonaceous aerosol: evaluation of the sampling artifacts and inter-comparison of the thermal-optical analysis methods
carbonaceous aerosol the sampling artifacts the thermal-optical analysis methods
2010/9/21
The sampling artifacts (both positive and negative) and the influence of thermal-optical methods (both charring correction method and the peak inert mode temperature) on the split of organic carbon (O...
Quantification of PM2.5 organic carbon sampling artifacts in US networks
PM2.5 organic carbon sampling artifacts US networks
2010/8/13
Field blanks (bQF) and backup filters (quartz-fiber behind quartz-fiber filter; QBQ) have been adopted by US long-term air quality monitoring networks to estimate PM2.5 organic carbon (OC) sampling ar...
Development and Performance Evaluation of Air Sampler with Inertial Filter for Nanoparticle Sampling
Nano-particles Inertial filter Impactor Pressure drop
2016/3/29
This paper describes the design and evaluation of an ambient air sampler consisting of a four-stage impactor and an
inertial filter, for collecting various size fractions, including nano-particles, i...
Positive sampling artifact of carbonaceous aerosols and its influence on the thermal-optical split of OC/EC
carbonaceous aerosols thermal-optical split OC/EC
2009/10/9
Accurate measurement of carbonaceous aerosols is challenging, due to the sampling artifact and the problems of the split of OC/EC. Two approaches have been used to account for the positive artifact: b...
The use of disjunct eddy sampling methods for the determination of ecosystem level fluxes of trace gases
disjunct eddy sampling methods ecosystem level fluxes trace gases
2009/3/13
The concept of disjunct eddy sampling (DES) for use in measuring ecosystem-level micrometeorological fluxes is re-examined. The governing equations are discussed as well as other practical considerati...
Comparison of emissions from on-road sources using a mobile laboratory under various driving and operational sampling modes
emissions on-road sources driving and operational sampling modes
2009/3/12
Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intri...