Can Water Contamination Cause Cancer or Tumors in Humans?
Water contamination is a critical issue that can affect human health in various ways, one of which is the potential for causing cancer or tumors. This article explores the relationship between water contamination and these health risks, focusing on specific contaminants and chemical substances found in tap water.
The Extent of Cancer Risk in Drinking Water
According to the Environmental Working Group (EWG), 87% of the cancer risk present in tap water stems from arsenic and byproducts of common disinfectants. These contaminants are so pervasive that it is estimated that out of every 100,000 people, 5 will likely develop cancer in their lifetime due to these waterborne contaminants.
Other Toxins Found in Water
The presence of toxins like fluoride in water also cannot be overlooked. Fluoride is added to water in many regions to prevent tooth decay, but excessive exposure can lead to health issues such as dental and skeletal fluorosis.
Heavy Water and Its Effects
In special cases, heavy water, which contains deuterium, can have a more concerning impact. This isotope of water, when consumed in large amounts, can interfere with the density of substances inside living cells. This interference can affect mitosis, potentially inducing defects in chromosomes, which theoretically could trigger cancer. However, this is not a common occurrence and typically involves extremely high levels of deuterium exposure.
The Science Behind Water and Health
Water itself, in its natural state, does not cause cancer. However, the chemicals and biological agents that can contaminate water do pose a significant threat. Regular tap water has been found to contain unhealthy pollutants, such as PFASs (Polyfluoralkyl and perfluoroalkyl substances). These substances are found in numerous everyday items including food containers, clothing, carpets, and furniture. PFASs have been linked to a range of health issues such as obesity, low birth weight, and delayed puberty, ultimately leading to cancer.
Health Risks from PFASs
Scientists have amassed evidence indicating that PFASs can indeed cause the aforementioned health issues. For instance, PFASs are known to affect the endocrine system, leading to hormonal imbalances and developmental issues. The presence of these contaminants in tap water is an alarming discovery, particularly since they are virtually ubiquitous in modern living environments.
Prevention and Reducing Risks
To mitigate the risks associated with water contamination, experts recommend using filtered water. Filters can effectively remove many contaminants, including PFASs, thus ensuring safer drinking water. If concerns about water contamination are significant, investing in a high-quality water filter is a prudent step.
Conclusion
While water itself does not cause cancer, the chemicals and biological agents that can be present in tap water do pose a health risk. For individuals concerned about the quality of their drinking water, opting for filtered water can significantly reduce exposure to harmful contaminants, thereby lowering the risk of developing health problems, including cancer and tumors.