Passive Air Sampling of Polychlorinated Biphenyls and Organochlorine Pesticides at the Korean Arctic and Antarctic Research Stations: Implications for Long-Range Transport and Local Pollution

2008 ◽  
Vol 42 (19) ◽  
pp. 7125-7131 ◽  
Author(s):  
Sung-Deuk Choi ◽  
Song-Yee Baek ◽  
Yoon-Seok Chang ◽  
Frank Wania ◽  
Michael G. Ikonomou ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls ◽  
Organochlorine Pesticides ◽  
Long Range ◽  
Air Sampling ◽  
Long Range Transport ◽  
Passive Air Sampling ◽  
Local Pollution ◽  
Range Transport ◽  
Antarctic Research

Impact of field biomass burning on local pollution and long-range transport of PM2.5 in Northeast Asia

2019 ◽  
Vol 244 ◽  
pp. 414-422 ◽  
Author(s):  
Katsushige Uranishi ◽  
Fumikazu Ikemori ◽  
Hikari Shimadera ◽  
Akira Kondo ◽  
Seiji Sugata
Keyword(s):  
Long Range ◽  
Biomass Burning ◽  
Northeast Asia ◽  
Long Range Transport ◽  
Local Pollution ◽  
Range Transport

scholarly journals Aircraft measurements of gases pollutants and particles during CAREBeijing-2008: distributions, characteristics and influencing factors

2013 ◽  
Vol 13 (1) ◽  
pp. 2877-2912
Author(s):  
W. Zhang ◽  
T. Zhu ◽  
W. Yang ◽  
Z. Bai ◽  
Y. L. Sun ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Long Range ◽  
Pollutant Transport ◽  
Middle Level ◽  
Long Range Transport ◽  
Pollution Level ◽  
Local Pollution ◽  
Transport Direction ◽  
Range Transport ◽  
Meteorological Influences

Abstract. Measurements of gaseous pollutants, including ozone (O3), sulfur dioxide (SO2), nitrogen oxides (NOx = NO + NO2), carbon monoxide (CO), particle number concentrations (5.6–560 nm and 0.47–30 μm), and meteorological parameters (T, RH, P) were conducted during the Program of Campaigns of Air Quality Research in Beijing and Surrounding Region (CAREBeijing) from 27 August through 13 October 2008. The data of total 18 flights (70 h flight time) from the ground to 2100 m were obtained by a Yun-12 aircraft in the southern surrounded areas of Beijing (38° N–40° N, 114° E–118° E). This measurement was to characterize the regional variation of air pollution during and after the Olympics of 2008, the impacts of different transport direction and possible influencing factors. Results suggested that four different groups of transport sources influenced the pollution level of pollutants with the consideration of the backward trajectory analysis, including: (1) the pollutant transport of the southern direction with higher pollutants level; (2) the cleaner long-range transport of the northern or northwestern direction with lower pollutants level; (3) the transport from the eastern direction with characteristics of sea sources, i.e. middle level of gases pollutants and higher particle concentration; (4) the transport of mixing directions, i.e. lower altitudes from the pollutant transport direction or local pollution but higher altitudes from the clean transport direction. Additionally, the relatively long-lived CO was shown to be a possible transport tracer of long-range transport of northwestern direction especially on the higher altitudes. Three factors influenced the size distribution of particles, i.e. air mass transport direction, ground source emissions and meteorological influences were also discussed.

Atmospheric Distribution and Long-Range Transport Behavior of Organochlorine Pesticides in North America

2005 ◽  
Vol 39 (2) ◽  
pp. 409-420 ◽  
Author(s):  
Li Shen ◽  
Frank Wania ◽  
Ying D. Lei ◽  
Camilla Teixeira ◽  
Derek C. G. Muir ◽  
...  
Keyword(s):  
North America ◽  
Organochlorine Pesticides ◽  
Long Range ◽  
Long Range Transport ◽  
Transport Behavior ◽  
Range Transport

scholarly journals Evaluation of Air Quality Model Performance for Simulating Long-Range Transport and Local Pollution of PM2.5in Japan

2016 ◽  
Vol 2016 ◽  
pp. 1-13 ◽  
Author(s):  
Hikari Shimadera ◽  
Tatsuya Kojima ◽  
Akira Kondo
Keyword(s):  
Air Quality ◽  
Long Range ◽  
Model Performance ◽  
Anthropogenic Sources ◽  
Long Range Transport ◽  
Air Quality Model ◽  
Quality Model ◽  
Local Pollution ◽  
Range Transport ◽  
The Difference

The Community Multiscale Air Quality Model (CMAQ) v5.0.2 was applied to PM2.5simulation in Japan, which is strongly affected by long-range transport (LRT) from anthropogenic sources in the Asian Continent, for one year from April 2010 to March 2011. The model performance for LRT and local pollution (LP) of PM2.5was evaluated to identify the model processes that need to be improved. CMAQ well simulated temporal and spatial variation patterns of PM2.5but underestimated the concentration level by 15% on average. The contribution of LRT was estimated from the difference between the baseline simulation case and a zero-emission case for anthropogenic emissions in the continent. The estimated LRT contribution to PM2.5was 50% on average and generally higher in the western areas of Japan (closer to the continent). Days that were dominantly affected by LRT or LP were determined based on the contribution of LRT to sulfate, which was fairly well simulated and strongly affected by LRT among major PM2.5components. The underestimation of PM2.5was larger in LP days (by 26% on average) than LRT days (by 10% on average). Therefore, it is essential to improve local emissions, formation, and loss processes of precursors and PM2.5in Japan.

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