A Theoretical Model of Soil Aerosol Generation and Vertical Transport During Rainfall

Abstract

Related to human health, a myriad of viruses and microorganisms are adhered on the surfaces of the aerosols and may cause disease to spread widely through the respiratory tract (Chen et al., 2015;Huffman et al., 2013;Joung et al., 2017). It is also one of the main routes of transmission for COVID-19, which has taken a huge toll on the global human existence and economy in recent years (Bale et al., 2022;Firle et al., 2022;Le et al., 2021). An in-depth understanding of the mechanisms of aerosols generation and transport are critical to stopping the transmission of respiratory diseases like COVID-19.Traditional theories hold that, windblown dust and sea salt from sea spray are the chief sources of environmental aerosol (Fuchs, 1989;Lighthart & Mohr, 1994; Ruzer & Harley, 2012). In recent years, a new mechanisms of aerosols generation reported by Joung (2015) shows that aerosols can be produced from raindrops impacting on porous surfaces. When raindrops impact on porous surfaces such as soil and clay, bubbles will form in the droplets and then burst, leading to the generation of aerosols (Figure 1a). These aerosols are considered as a mainly

Formation Mechanisms and Emission Characteristics of Aerosol in CO2 Capture by Chemical Absorption Based on Ethanolamine Solution

“…Aerosols not only damage ecosystems, affect climate change, and cause environmental pollution, but also enter the human body and threaten our health. − Much research has been done in this field in order to avoid harm from aerosols to human beings and the environment. At a certain temperature, the vapor is in a state of supersaturation when the pressure of the vapor exceeds its saturation vapor pressure at that temperature; Khakharia et al predicted aerosol emissions after a chemical absorption system using the Aspen Plus model and found that supersaturation was an important factor for predicting aerosol emissions .…”