title: Silica, Some Silicates, Coal Dust and Para-Aramid Fibrils.
mesh_terms: D000818:Animals; D003031:Coal / Q000009:adverse effects*; D006801:Humans; D010795:Phthalic Acids / Q000009:adverse effects*; D011108:Polymers / Q000009:adverse effects*; D018570:Risk Assessment; D017640:Silicates / Q000009:adverse effects*; D012822:Silicon Dioxide / Q000009:adverse effects*
chemical_list: D003031:Coal; D010795:Phthalic Acids; D011108:Polymers; D017640:Silicates; C073843:poly(4-phenylene terephthalamide); D012822:Silicon Dioxide