Environmental Remediation: Gypsum Can be used to mitigate soil erosion and control dust on construction web pages. It is usually Employed in wastewater treatment processes to get rid of impurities. Map of gypsum deposits in northern Ohio, black squares reveal The placement of deposits, from "Geography of Ohio", 1923 Gypsum https://www.propanraya.com/id/produk/eco-gypsum-ee-4050