Sulfur leads to methylmercury.
Lubick
Naomi
N
D015258:Acid Rain; D017753:Ecosystem; D005618:Fresh Water / Q000737:chemistry*; D008767:Methylmercury Compounds / Q000032:analysis / Q000737:chemistry / Q000378:metabolism*; D013431:Sulfates / Q000032:analysis / Q000737:chemistry; D013455:Sulfur / Q000032:analysis / Q000737:chemistry / Q000378:metabolism*
D015258:Acid Rain; D008767:Methylmercury Compounds; D013431:Sulfates; D013455:Sulfur