10 oil refineries are emitting cancer-causing benzene above EPA action levels 
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Net concentration (micrograms per cubic meter)
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10
20
30
40
Philadelphia Energy Solutions (Philadelphia, PA)
HollyFrontier Navajo Artesia (Artesia, NM)
Total Refinery Port Arthur (Port Arthur, TX)
Pasadena Refining (Pasadena, TX)
Flint Hills Resources Corpus Christi East (Corpus Christi, TX)
Chevron Pascagoula (Pascagoula, MS)
Valero Corpus Christi East (Corpus Christi, TX)
Chalmette Refining (Chalmette, LA)
Shell Deer Park (Chalmette, LA)
Marathon Galveston Bay Texas City (Texas City, TX)
EPA Action Level (9 micrograms)