Several factors contribute to the variability in exposure levels:
Environmental Factors: Geographic differences, such as urban versus rural settings, can lead to variations in air, water, and soil contamination. Behavioral Factors: Lifestyle choices, including diet, smoking, and alcohol consumption, can influence the level of exposure to certain toxins. Occupational Exposure: Certain professions may expose individuals to higher levels of chemicals, such as industrial workers or farmers. Genetic Differences: Genetic variations can affect how individuals metabolize and respond to toxicants, leading to different exposure levels and effects.