Results 11 to 20 of about 315,278 (352)

Mixing state of refractory black carbon in fog and haze at rural sites in winter on the North China Plain [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
The variability of the mixing state of refractory black carbon aerosol (rBC) and the corresponding complicated light absorption capacity imposes great uncertainty for its climate forcing assessment.
Y. Zhang   +30 more
doaj   +1 more source

Mass spectral characterization of primary emissions and implications in source apportionment of organic aerosol [PDF]

open access: yesAtmospheric Measurement Techniques, 2020
Source apportionment of organic aerosol (OA) from aerosol mass spectrometer (AMS) or aerosol chemical speciation monitor (ACSM) measurements relies largely upon mass spectral profiles from different source emissions.
W. Xu   +23 more
doaj   +1 more source

Measurement report: Long-term changes in black carbon and aerosol optical properties from 2012 to 2020 in Beijing, China [PDF]

open access: yesAtmospheric Chemistry and Physics, 2022
Atmospheric aerosols play an important role in the radiation balance of the earth–atmosphere system. However, our knowledge of the long-term changes in equivalent black carbon (eBC) and aerosol optical properties in China is very limited. Here we analyze
J. Sun   +22 more
doaj   +1 more source

Fine particle characterization in a coastal city in China: composition, sources, and impacts of industrial emissions [PDF]

open access: yesAtmospheric Chemistry and Physics, 2020
Aerosol composition and sources have been extensively studied in developed regions in China. However, aerosol chemistry in coastal regions of eastern China with high industrial emissions remains poorly characterized.
L. Lei   +21 more
doaj   +1 more source

Update of a biogeochemical model with process-based algorithms to predict ammonia volatilization from fertilized cultivated uplands and rice paddy fields [PDF]

open access: yesBiogeosciences, 2022
Accurate simulation of ammonia (NH3) volatilization from fertilized croplands is crucial to enhancing fertilizer-use efficiency and alleviating environmental pollution.
S. Li   +10 more
doaj   +1 more source

The thermodynamic structures of the planetary boundary layer dominated by synoptic circulations and the regular effect on air pollution in Beijing [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
To investigate the impacts of multiscale circulations on the planetary boundary layer (PBL), we have carried out the PBL thermodynamic structure field experiment with a Doppler wind profile lidar, a microwave radiometer, and a ceilometer from January ...
Y. Jiang   +17 more
doaj   +1 more source

A review of indoor Gaseous organic compounds and human chemical Exposure: Insights from Real-time measurements

open access: yesEnvironment International, 2022
Gaseous organic compounds, mainly volatile organic compounds (VOCs), have become a wide concern in various indoor environments where we spend the majority of our daily time.
Bo You   +4 more
doaj   +1 more source

An ensemble method for improving the estimation of planetary boundary layer height from radiosonde data [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
The planetary boundary layer (PBL) height (PBLH) is an important parameter for weather, climate, and air quality models. Radiosonde is one of the most commonly used instruments for PBLH determination and is generally accepted as a standard for other ...
X. Chen   +7 more
doaj   +1 more source

Comparison of planetary boundary layer height from ceilometer with ARM radiosonde data

open access: yesAtmospheric Measurement Techniques, 2022
. Ceilometer measurements of aerosol backscatter profiles have been widely used to provide continuous planetary boundary layer height (PBLHT) estimations. To investigate the robustness of ceilometer-estimated PBLHT under different atmospheric conditions,
Damao Zhang, J. Comstock, V. Morris
semanticscholar   +1 more source

Algorithm for vertical distribution of boundary layer aerosol components in remote-sensing data [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
The vertical distribution of atmospheric aerosol components is vital to the estimation of radiative forcing and the catalysis of atmospheric photochemical processes.
F. Wang   +15 more
doaj   +1 more source

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