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Invisible poison: Airborne mercury from gold mining is contaminating African food crops, new study warns

https://www.egu.eu/news/1510/invisible-poison-airborne-mercury-from-gold-mining-is-contaminating-african-food-crops-new-study-warns/

The preprint: Mercury contamination in staple crops impacted by Artisanal Small-scale Gold Mining (ASGM): Stable Hg isotopes demonstrate dominance of atmospheric uptake pathway for Hg in crops