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Human Exposure to Environmental Pollutants and Associations with Non-Hodgkin Lymphoma: A Review

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Abstract

The incidence rate of non-Hodgkin lymphoma (NHL) is currently increasing within Canada as well as worldwide. Environmental pollutants are ubiquitous in the environment and can potentially increase an individual’s risk of developing NHL. The goal of this literature review was to identify environmental pollutants associated with diagnosis of NHL and summarize their current levels in human populations. Sixteen environmental pollutants were identified as having associations with NHL diagnosis, including dichlorodiphenyltrichloroethane (DDT), pentachlorophenol (PCP), polychlorinated biphenyls (PCBs), carbon tetrachloride, and various pesticides. PCB levels in human breast milk were highest in developed countries, while DDT levels were highest in malaria-endemic countries. 2,4-Dichlorophenoxyacetic acid and glyphosate levels were highest in individuals who were occupationally exposed to these chemicals. Humans are mainly exposed to the identified pollutants through food. PCBs were found within animal products such as milk and cheese, and a variety of pesticides were found in various fruits and vegetables. Individuals who followed vegan and vegetarian diets had lower levels of non-pesticide pollutants in their body due to limited consumption of animal products but had higher pesticide levels due to increased consumption of fruits and vegetables. However, organic diets proved to mitigate this issue. Further research needs to be conducted on a wider variety of pollutants to gain a comprehensive understanding of the effects of these pollutants in association with NHL.

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The authors did not receive support from any organization for the submitted work.

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Content was collaboratively constructed by RG and OS. RG completed literature search, data analysis, and manuscript draft.

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Correspondence to Rachael Grove.

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Grove, R., Sanchez, O. Human Exposure to Environmental Pollutants and Associations with Non-Hodgkin Lymphoma: A Review. Expo Health 14, 99–109 (2022). https://doi.org/10.1007/s12403-021-00421-9

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  • DOI: https://doi.org/10.1007/s12403-021-00421-9

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