Tuukka Petäjä

TL;DR: Wang et al. as discussed by the authors investigated the influence of Chinese New Year (CNY) celebrations on local air quality in Beijing from 2013 through 2019, bringing together comprehensive observations at the newly-constructed Aerosol and Haze Laboratory at Beijing University of Chemical Technology -West Campus (BUCT-AHL) and data from Chinese government air quality measurement stations.

TL;DR: In this paper , the authors proposed a framework in which policymakers can combat air pollution by formulating evidence-based air quality management strategies, and the European Union has stated its intent to revise the current ambient air quality.

TL;DR: In this paper , the authors presented ∼7 months of measurements of aerosol-forming vapors from SMEAR I in the subarctic region of Finland, and the results of these measurements will help develop an understanding of atmospheric chemical processes and aerosol formation in the rapidly changing Arctic.

TL;DR: In this paper, the authors measured the hygroscopic growth of Sodium Chloride particles in a size range from 2.5 nm to 6 nm in a relative humidities ranging from 10% to 95% with a nano hy-scopicity tandem differential mobility analyzer.

TL;DR: A water-based condensation particle counter (CPC) TSI 3785 is a new step for the ultrafine particle measurement technique as discussed by the authors, which can be used for particle detection.