Stoykova, Vanya; Todorov, Apostol; Shivacheva, Galya; Zlatev, Zlatin

INFLUENCE OF MAIN POLLUTANT CONCENTRATIONS OVER THE ACTIVE ACIDITY OF RAIN WATER

2023

APPLIED RESEARCHES IN TECHNICS, TECHNOLOGIES AND EDUCATION

Тракийски университет - Стара Загора

1314-8796 [issn]

Article

eng

Rainfall; Climate; Regression model analysis; Residual analysis; Air pollutants; Nitrogen oxide; Sulphur oxide

This work analyzes the relationship between major urban air pollutants such as sulfur dioxide and nitrogen dioxide with the active acidity of rainwater. An analysis was made of the seasonal changes in the levels of the studied pollutants and their influence on the acidity of rainwater. A regression model was obtained describing the relationship between sulfur dioxide, nitrogen dioxide of the air and the active acidity of rainwater. The model was found to describe the experimental data with sufficient accuracy. It has been proven that the active acidity of rainwater can be predicted from data on the above pollutants with an accuracy of up to 80%. The study found that sulfur dioxide has a significant impact on the formation of acid rain, compared to nitrogen dioxide. In order to reduce the prerequisites for acid rain, organizational measures and systems for reducing sulfur and nitrogen oxides, as well as systems for continuous monitoring of emissions, must be implemented. The research will be continued by establishing the influence of sulfur and nitrogen oxides on the occurrence of acid rain in different locations of the Republic of Bulgaria.