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Akademický článek

Surface gas pollutants in Lhasa, a highland city of Tibet – current levels and pollution implications

Autor: L. Ran, W. L. Lin, Y. Z. Deji, B. La, P. M. Tsering, X. B. Xu, W. Wang

Publikováno v: Atmospheric Chemistry and Physics, Vol 14, Iss 19, Pp 10721-10730 (2014)

Through several years of development, the city of Lhasa has become one of the most populated and urbanized areas on the highest plateau in the world. In the process of urbanization, current and potential air quality issues have been gradually concern

Externí odkaz: https://doaj.org/article/6d6b5f81b38440b5ae6ac7670f36700a

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Akademický článek

SO2 noontime-peak phenomenon in the North China Plain

Autor: W. Y. Xu, C. S. Zhao, L. Ran, W. L. Lin, P. Yan, X. B. Xu

Publikováno v: Atmospheric Chemistry and Physics, Vol 14, Iss 15, Pp 7757-7768 (2014)

A phenomenon of frequent noontime SO2 concentration peaks was discovered in a detailed analysis of the SO2 concentrations in the North China Plain (NCP). The possible causes and their contributions are analyzed. The impacts of such a phenomenon on th

Externí odkaz: https://doaj.org/article/6aa4db6e9b384cdf9e4ad4bddf0f5e26

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Akademický článek

Influence of air mass downward transport on the variability of surface ozone at Xianggelila Regional Atmosphere Background Station, southwest China

Autor: J. Ma, W. L. Lin, X. D. Zheng, X. B. Xu, Z. Li, L. L Yang

Publikováno v: Atmospheric Chemistry and Physics, Vol 14, Iss 11, Pp 5311-5325 (2014)

In situ measurements of ozone (O3), carbon monoxide (CO) and meteorological parameters were made from December 2007 to November 2009 at the Xianggelila Regional Atmosphere Background Station (28.006° N, 99.726° E; 3580 m a.s.l.), southwest China. I

Externí odkaz: https://doaj.org/article/d61d902253df490fa4bf30b918a03af0

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Akademický článek

Ozone production in summer in the megacities of Tianjin and Shanghai, China: a comparative study

Autor: L. Ran, C. S. Zhao, W. Y. Xu, M. Han, X. Q. Lu, S. Q. Han, W. L. Lin, X. B. Xu, W. Gao, Q. Yu, F. H. Geng, N. Ma, Z. Z. Deng, J. Chen

Publikováno v: Atmospheric Chemistry and Physics, Vol 12, Iss 16, Pp 7531-7542 (2012)

Rapid economic growth has given rise to a significant increase in ozone precursor emissions in many regions of China, especially in the densely populated North China Plain (NCP) and Yangtze River Delta (YRD). Improved understanding of ozone formation

Externí odkaz: https://doaj.org/article/062c3d2f065e4fa7ba1fcba9002932cd

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Akademický článek

Measurements of ozone and its precursors in Beijing during summertime: impact of urban plumes on ozone pollution in downwind rural areas

Autor: J. Xu, J. Z. Ma, X. L. Zhang, X. B. Xu, X. F. Xu, W. L. Lin, Y. Wang, W. Meng, Z. Q. Ma

Publikováno v: Atmospheric Chemistry and Physics, Vol 11, Iss 23, Pp 12241-12252 (2011)

Sea-land and mount-valley circulations are the dominant mesoscale synoptic systems affecting the Beijing area during summertime. Under the influence of these two circulations, the prevailing wind is southwesterly from afternoon to midnight, and then

Externí odkaz: https://doaj.org/article/5eeecdbe97e14e9cb56aa87ad86fbbe9

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Akademický článek

Characteristics of atmospheric ammonia over Beijing, China

Autor: Z. Y. Meng, W. L. Lin, X. M. Jiang, P. Yan, Y. Wang, Y. M. Zhang, X. F. Jia, X. L. Yu

Publikováno v: Atmospheric Chemistry and Physics, Vol 11, Iss 12, Pp 6139-6151 (2011)

Continuous measurements of atmospheric ammonia (NH3) were conducted using Ogawa passive samplers from February 2008 to July 2010 at an urban site and from January 2007 to July 2010 at a rural site in Beijing, China. NH4+ in fine particles was also co

Externí odkaz: https://doaj.org/article/f40da0ac87d34a0fb371fa16b0f1dd1b

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Akademický článek

Characteristics of pollutants and their correlation to meteorological conditions at a suburban site in the North China Plain

Autor: W. Y. Xu, C. S. Zhao, L. Ran, Z. Z. Deng, P. F. Liu, N. Ma, W. L. Lin, X. B. Xu, P. Yan, X. He, J. Yu, W. D. Liang, L. L. Chen

Publikováno v: Atmospheric Chemistry and Physics, Vol 11, Iss 9, Pp 4353-4369 (2011)

North China Plain (NCP) is one of the most densely populated regions in China and has experienced enormous economic growth in the past decades. Its regional trace gas pollution has also become one of the top environmental concerns in China. Measureme

Externí odkaz: https://doaj.org/article/8fb831bcae204995b8417fe32e1af343

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Akademický článek

VOC reactivity and its effect on ozone production during the HaChi summer campaign

Autor: L. Ran, C. S. Zhao, W. Y. Xu, X. Q. Lu, M. Han, W. L. Lin, P. Yan, X. B. Xu, Z. Z. Deng, N. Ma, P. F. Liu, J. Yu, W. D. Liang, L. L. Chen

Publikováno v: Atmospheric Chemistry and Physics, Vol 11, Iss 10, Pp 4657-4667 (2011)

Measurements of ozone and its precursors conducted within the HaChi (Haze in China) project in summer 2009 were analyzed to characterize volatile organic compounds (VOCs) and their effects on ozone photochemical production at a suburban site in the N

Externí odkaz: https://doaj.org/article/9e198236c75f43cd8561a9a7096d3fc0

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Akademický článek

Characteristics of trace gaseous pollutants at a regional background station in Northern China

Autor: Z. Y. Meng, X. B. Xu, P. Yan, G. A. Ding, J. Tang, W. L. Lin, X. D. Xu, S. F. Wang

Publikováno v: Atmospheric Chemistry and Physics, Vol 9, Iss 3, Pp 927-936 (2009)

Measurements of trace gaseous pollutants were taken at the Shangdianzi site, a WMO Global Atmosphere Watch (GAW) background station in Northern China. The results are presented for the period from September 2003 to December 2006. Seasonal and diurnal

Externí odkaz: https://doaj.org/article/a6f1af37297f4f3990aa39b96e083e03

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Akademický článek

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