Does formaldehyde have a causal association with nasopharyngeal cancer and leukaemia?

ConclusionAdditional evidence is needed to confirm the relationship between formaldehyde exposure and nasopharyngeal cancer. All lymphohematopoietic malignancies, including leukemia, should be considered in cases with occupational formaldehyde exposure.
Source: Annals of Occupational and Environmental Medicine - Category: Occupational Health Source Type: research