"Umweltverschmutzung." . . "Potential pollutants from petrochemical processes" . "Potential pollutants from petrochemical processes"@en . . . . . . . "Potential Pollutants from Petrochemical Processes" . . . . . . . . . . . . . . . . . . . . "Monsanto Research Corporation (Dayton, Estados Unidos)" . . "National Environmental Research Center (Cincinnati, Estados Unidos). Control Systems Laboratory." . . "Industria petroquímica Aspecto del medio ambiente." . . "Öl." . . . . "Residuos industriales." . .