PM2.5 Precursor definition
PM2.5 Precursor means any chemical compound or substance which, after it has been emitted into the atmosphere, undergoes chemical or physical changes that convert it into particulate matter, specifically PM2.5, and has been identified in the applicable implementation plan for PM2.5 as significant for the purpose of developing control measures. Specifically, PM2.5 precursors include SO2, NOx, and VOC.
PM2.5 Precursor means any chemical compound or substance
PM2.5 Precursor means any chemical compound or substance which, after it has been emitted into the atmosphere, undergoes chemical or physical changes that convert it into particulate matter, specifically PM2.5.
More Definitions of PM2.5 Precursor
PM2.5 Precursor means any chemical compound or substance which, after it has been
PM2.5 Precursor means those air pollutants other than PM2.5 direct emissions that significantly contribute to the formation of PM2.5 in a specific area. PM2.5 precursors include sulfur dioxide, nitrogen oxides, VOC and ammonia except the director may exempt a particular precursor from the requirements of this chapter if a demonstration of insignificant contribution is approved by the administrator of the USEPA. In Ohio, the precursors VOC and ammonia are determined to be insignificant contributors to the formation of PM2.5. In the event the administrator of the USEPA has not approved Ohio’s demonstration by the effective date of this rule, the determination of VOC or ammonia as a precursor for PM2.5 shall be made
PM2.5 Precursor means those air pollutants other than PM2.5 direct emissions that significantly contribute to the formation of PM2.5 in a specific
PM2.5 Precursor means those air pollutants other than PM2.5 direct emissions that
PM2.5 Precursor means those air pollutants other than PM2.5 direct emissions that Ohio EPA has demonstrated, with US EPA approval, significantly contribute to the formation of PM2.5 in a specific area. PM2.5 precursors include sulfur dioxide and nitrogen oxides.”