Air pollution exposure can raise high blood pressure risk

“In the study, we discovered a significant risk of developing high blood pressure due to exposure to air pollution,” said lead author Tao Liu, epidemiologist at Guangdong Provincial Institute of Public Health in China.

Also, air pollution can lead to inflammation and oxidative stress causing changes in the arteries.

High blood pressure has been identified as a major risk factor for cardiovascular disease and stroke, the researchers said.

“People should limit their exposure on days with higher air pollution levels, especially for those with high blood pressure, even very short-term exposure can aggravate their conditions,” Liu suggested.

For the study, published in the journal Hypertension, the team performed a meta-analysis of 17 studies, which involved over 108,000 hypertension patients and 220,000 non-hypertensive controls, assessing the health effects of all air pollution on hypertension risk.

Air pollution exposure was assessed by taking average of data from the nearest air pollution monitoring stations or using complex dispersion models or land use regression models.

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