27 April 1998 00:00 [Source: ICB Americas]Chemical companies implementing risk management plans under a requirement of the Clean Air Act would have to provide Environmental Protection Agency with additional information under a proposed rule published in the Federal Register on April 17.
More than 64,000 companies must file a report on these accident prevention and response programs with EPA by June 21, 1999. The proposed rule would require these firms to also include information such as Clean Air Act permit numbers and explanations of how latitude and longitude details are determined.
In addition, it would require calculations on the "percentage weight of a toxic substance in a mixture," which means companies would have to indicate whether regulated toxic substances are in pure form or in mixtures.
EPA notes that substances released into the air in pure form act differently from those released as part of a mixture. Released in their pure forms, substances will generally travel greater distances before the concentration falls below the toxic endpoint. , according to the proposed rule.
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