Emission estimate guide for primary aluminum producers: chapter 9


9. Estimating releases to land

This section presents the appropriate methodology for estimating emissions to land.

9.1 Spills and accidental leaks

9.1.1 Process description

Any accidental release that may have occurred in the facility. The difference between a leak and a spill has to do with the duration of the event: a spill extends over a period ranging from a few hours to a few days, whereas a leak lasts a few days to a few months.

9.1.2 Releases

All substances used on the site that can be released accidentally or substances that may leak.

9.1.3 Release calculations

The spreadsheet does not contain a standard procedure for estimating accidental spills and leaks into land; users can therefore use one of the approaches mentioned in the Estimation Codes Table.

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