Article summary
Abstract
- Environmental chemistry plays a crucial role in understanding the interactions between human activities and the environment. Air pollution, a significant concern within environmental chemistry, entails the presence of harmful substances in the atmosphere, adversely affecting ecosystems, human health, and climate. This study delves into the complexities of air pollution, examining its primary and secondary pollutants, and the natural and anthropogenic sources contributing to its prevalence. Primary pollutants, such as particulate matter (PM), sulfur dioxide (SO), nitrogen oxides (NO), carbon monoxide (CO), and volatile organic compounds (VOCs), directly enter the atmosphere from various sources. In contrast, secondary pollutants like ozone (O) and secondary particulate matter form through atmospheric reactions involving primary pollutants. Natural sources, including volcanic eruptions, wildfires, dust storms, biogenic emissions, and sea spray, contribute to background pollution levels. However, human activities, particularly industrial processes, transportation, agriculture, and residential practices, significantly amplify pollutant emissions. This paper focuses on air pollution, a critical aspect of environmental chemistry, examining its sources, types of pollutants, and their effects. The study highlights natural and anthropogenic sources of air pollution, emphasizing the importance of emission factors in understanding pollution levels. Through an extensive review of existing literature and data, this paper aims to provide a comprehensive understanding of air pollution and its implications for environmental and public health.