Long-term ambient air pollution exposure and risk of high blood pressure among citizens in Nis, Serbia

Abstract

Epidemiological studies suggest that long-term exposure to air pollution increases the risk for high blood pressure (BP). The aim of our study is to evaluate any effects in BP in citizens exposed to long-term ambient air pollution. The subjects are 1136 citizens, aged 18–70 years, living for more than 5 years in the same home in the areas with a different level of air pollution. The air concentrations of black smoke and sulfur dioxide were determined in the period from 2001 to 2011. We measured systolic and diastolic BP and heart rate. Multivariate methods were used in the analysis. Alcohol consumption had the greatest influence on the incidence of hypertension as a risk factor (RR: 3.461; 95% CI: 1.72–6.93) and age had the least (RR: 1.23; 95% CI: 1.183–1.92). Exposure to air pollution increases risk for developing hypertension 2.5 times (95% CI: 1.46–4.49). Physical activity has proved to be statistically significant protective factor for the development of hypertension. Long-term exposure to low levels of main air pollutants is significantly associated with elevated risk of hypertension.

• Air pollution
• blood pressure
• black smoke
• heart rate
• sulfur dioxide

Acknowledgements

The authors thank the Ministry of Science and Technological Development of the Republic of Serbia (Project nos. 42008 and 43014) for helping in publishing this article.

Declaration of interest

The authors declare that they have no conflict of interest.