In June, the state found PFAS at an elementary school at levels up to 233 times greater than federal limits. But the N.C. Chamber of Commerce wants to delay regulations.By Lisa SorgThe North Carolina Chamber of Commerce has privately leaned on the state’s powerful Environmental Management Commission to delay critical PFAS rules, emails obtained under state public records law show, including providing members with the résumé of a scientist who has downplayed the toxicity of the compounds.