Study on air anion concentration distribution in Beidaihe, China

Abstract In this paper, the air negative ion concentration distribution map in Beidaihe district was summarized and completed through several field visits to some representative areas in Beidaihe district or collection of local air detection data over the years. Combined with geomorphic environment, climatic conditions and other factors, this paper analyzes the regularity and characteristics of the concentration distribution of air negative ions in beidaihe, and proposes to build “the Great Wall of Air negative ions”.</jats:p

Atmospheric annealing effect on TiO₂/Sb₂S₃/P3HT heterojunction hybrid solar cell performance

We investigate the low-cost, earth-abundant and air-stable inorganic absorber Sb2S3 that can be processed in the air for organic–inorganic hybrid solar cell applications.</p

Effect of lightning activities on surface atmospheric NO, O-3 and submicron particles based on artificially triggered lightning technology: A case study

Lightning can cause a variety of atmospheric chemical reactions because of its high temperature and high pressure. Known as a major natural source of atmospheric nitrogen oxides (NOx), lightning can also affect the abundance of ozone (O-3) and result in the generation of new particles in the atmosphere. This study explores the effect of lightning activities on surface atmospheric nitric oxide (NO), O-3 and submicron particles utilizing artificially triggered lightning experiments. Five lightning flashes were successfully triggered in Guangzhou on 19th August 2014. Concentrations of surface NO, O-3 and submicron particles were observed together with lightning and meteorological parameters. Results show that NO concentration increased rapidly from 0.4 ppbv to 220.5 ppbv after a successful upwind artificially triggered lightning flash. Wind direction played an important role in the enhancement of NO concentration at different levels caused by each triggered lightning flash. O-3 concentration increased from 15.8 ppbv to 28.7 ppbv before triggering lightning. After the first triggered lightning flash, O-3 concentration decreased rapidly to the valley value of 16.9 ppbv because of titration effect. In addition, the number concentration of submicron particles also increased rapidly after successful triggered lightning experiments. The finds resulting from this study give a deeper insight into the impact of lightning on atmospheric chemistry