Smog and Preventive Measures for Patients with Heart Diseases

Abstract

Smog, a hazardous combination of fog and fine particulate matter (PM 2.5), poses a significant threat to cardiovascular health, particularly for patients with preexisting heart conditions. Containing harmful pollutants such as ozone, sulfur dioxide, and nitrogen oxides, smog exacerbates cardiovascular risks by triggering inflammation, oxidative stress, endothelial dysfunction, and vasoconstriction. Exposure to high levels of air pollution has been linked to acute cardiovascular events, including unstable angina and ischemic heart attacks, while chronic exposure accelerates degenerative cardiovascular processes. Individuals with hypertension or compromised cardiac function face heightened vulnerability during smog episodes, with increased risks of adverse cardiac outcomes. Preventive measures such as staying indoors, using air purifiers and protective masks, and minimizing exposure to outdoor pollutants are crucial for mitigating health risks. Additionally, policy-driven interventions, including stricter environmental regulations and the promotion of clean energy, are essential for long-term air quality improvement. Healthcare professionals play a vital role in educating patients on preventive strategies and ensuring adherence to treatment regimens. Given the recurrent nature of smog episodes, a collaborative approach involving governments, healthcare providers, and communities is necessary to address this growing environmental health crisis and safeguard the well-being of vulnerable populations.