Yan Cheng

TL;DR: In this paper, the authors compared the sulfate and nitrate levels in a synoptic-scale, mid-latitude, cyclone-induced dust storm plume at the Tengger Desert (38.79°N, 105.38°E) and in an urban site in Xi'an (34.22°N and 108.87°E).

TL;DR: In this paper, the authors investigated the trends of number, frequency, and duration of pollution episodes and compared these with the baseline trend in air pollution, and showed that the factors contributing to these events are complex; however, longterm measures to abate emissions from all anthropogenic sources at all times is also the most efficient way to reduce the occurrence of severe air pollution events.

TL;DR: Li et al. as mentioned in this paper conducted comprehensive characterization of particle size distribution during winter in Xi'an, China using a TSI Fast Mobility Particle Sizer Model 3091 (FMPS, from 5.6 to 523

TL;DR: The atmospheric ozone (O3) is a serious pollution particularly in summer that causes serious respiratory health effect on residents and economic impact on sustainable development of Xi'an as mentioned in this paper, China.

TL;DR: In this article, the morphological and elemental compositions of individual particles in seven micro-environments of Xi'an were characterized using a morphological-and elemental-based approach.