Pollution and Health: LIH Study Links Environmental Exposure to Heart Risks

Research reveals how long-term exposure to pollutants affects heart health and increases risks for conditions like diabetes and high blood pressure

• Human Biomonitoring Research Unit
• Department of Precision Health

A recently published study led by researchers from the Luxembourg Institute of Health (LIH), Imperial College London, and the University of Liège reveals how long-term exposure to environmental pollutants could affect heart health. Published in the journal Environment International, the study focused on the links between polycyclic aromatic hydrocarbons (PAHs), tobacco smoke, and key risk factors for heart disease, such as obesity, diabetes, high blood pressure, and cholesterol.

The researchers analyzed data from 612 participants in the Nutrition, Environment, and Cardiovascular Health (NESCAV) survey, a cross-sectional study conducted in Luxembourg, using hair samples to measure long-term exposure to pollutants. The findings showed that men exposed to PAHs were more likely to experience diabetes, high blood pressure, and cholesterol problems. In women, exposure was linked to metabolic issues, including lower “good” cholesterol and larger waist sizes. Tobacco smoke passive exposure was also consistently tied to risks like high blood sugar and blood pressure in both genders.

This research highlights how pollution can have serious, long-term impacts on heart health, and by using hair samples instead of urine, we were able to get a clearer picture of exposure over time

explained Dr. Brice Appenzeller, one of the senior researchers and group leader of the Human Biomonitoring Research Unit at the LIH.

The authors emphasize the need for more research to confirm these findings and call for stronger measures to reduce environmental pollution and tobacco exposure. This study was supported by the INTERREG IV A program and reflects a collaboration among leading European research institutions to improve public health.