A review of research published over the past 35 years reports an association between workplace exposure to certain pesticide chemicals and a higher risk of developing amyotrophic lateral sclerosis (ALS), a progressive motor neurone disease. The study synthesizes findings from multiple prior investigations and concludes that people exposed to the relevant substances at work may face an increased likelihood of ALS. The review reports that the possible increase in risk could be as high as 70%, though it presents this figure in the context of the evidence assembled across studies rather than a direct, single-individual causal estimate.
The outlets also frame the findings as a warning for occupational settings, emphasizing the importance of considering exposure during work. The reporting focuses on the overall pattern found in the literature—linking pesticide exposure with ALS—without detailing specific pesticides, exposure levels, or the strength of evidence for particular chemicals. The review’s conclusion remains an association based on aggregated research results.