‘Pig fat’ used to quell road dust | VailDaily.com

‘Pig fat’ used to quell road dust

Allen Best

HOT SULPHUR SPRINGS – Grand County is full of gravel roads. To quell the dust, each summer the county road and bridge department applies magnesium chloride.But this year, reports the Sky-Hi News, road crews have applied a new road stabilizer. The chemical was not identified, but road crews refer to it unaffectionately as “pig fat,” as it is partially made from animal waste products. The question is whether the chemical causes less damage to roadside vegetation than mag chloride.Grand County is compiling a comprehensive report in conjunction with several other counties in Colorado about use of mag chloride as a dust queller. Another study is being done by the state transportation department about its effects on trees adjacent to highways, as many conifers are dying – though not only in areas where the chemical is used. Park City trying to get lead outPARK CITY, Utah In a way, Park City is trying to sweep its mining history under the rug.It’s not that the city is ashamed of its origins in silver mining – which continued until shortly before the first ski area there opened in the 1960s – but the lead that is a byproduct of the silver mining is found in the soil in many areas. When ingested, as can happen when children eat dirt, it can cause significant medical problems.Now, if property owners will cover their lots with fresh topsoil to a depth of about six inches and then revegetate it, the city will offer $450 to defray the typical cost of $5,000 to $6,000.

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