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Various sampling methods for determining concentrations of PM 2.5 are mandated by the EPA. Once mandated, these methods can be used for ambient air sampling downwind from an emitting source. However, if these methods produce inaccurate concentrations when sampling agricultural dusts, it could lead to unfair regulation of agricultural facilities. EPA should modify their standards for determining accuracy to include sampling in a controlled laboratory environment where different types of dusts can be utilized. |
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©National Cotton Council, Memphis TN |
Document last modified XXXXXX, XXX XX 2001
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