Introduction: Cancer is the result of disrupted cell function. The interaction of various risk factors contributes most to the development of cancer. We have described in detail how various factors, such as air, water and soil pollution, radiation, exposure to chemicals and the influence of lifestyle, including diet and physical inactivity, affect the increased risk of developing malignant diseases. Purpose: The purpose of the thesis is to investigate and present, through the method of a systematic literature review, how environmental factors influence the occurrence and development of cancer. The aim of the thesis is to determine the extent to which various environmental factors have an impact on the occurrence and development of cancer. We asked ourselves the research question of to what extent the hypothesis that individual environmental factors, which we studied in this research, contribute to an increased risk of cancer. Methods: We used a descriptive method with a systematic literature review, based on online professional and scientific articles in Slovenian, English and Italian language. The literature search was conducted from November 1st, 2024 to March 15th, 2025. 20 articles were included in the systematic literature review. Results: The findings of the articles included in the systematic literature review are presented in tables. We focused on specific organs and how the described environmental factors influence the development of cancer. We identified the most commonly affected organs for each factor and highlighted the strongest links between the environment and cancer. We also found that some environmental factors may also have a preventative effect on cancers in specific areas. Discussion and conclusion: A review of the literature has shown that environmental factors such as microbial infections, air and water pollution, diet, smoking, alcohol, obesity, and ultraviolet and ionizing radiation have a significant impact on the development of various types of cancer. These factors act through mechanisms such as chronic inflammation, hormonal disruption, oxidative stress, and deoxyribonucleic acid damage. A healthy lifestyle and reduction of exposure to environmental risks can significantly contribute to cancer prevention. The findings from the reviewed studies confirm the importance of a comprehensive approach to reducing exposure to environmental factors as a key step in public health strategies for cancer prevention.
|