Air Quality and Industrial Sand (Frac Sand) Mining - National .These particles, when present in unsafe concentrations, can cause health . This Policy Study concludes industrial silica sand mining does not pose a threat to.reason for mining silica sand,Sand mining - WikipediaSand mining is the extraction of sand, mainly through an open pit but sometimes mined from . Sand mining is a direct cause of erosion, and impacts the local wildlife. .. Silica sand mining business has more than doubled since 2009 because of the need for this particular type of sand, which is used in a process known as.
reason for mining silica sand