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Hi Cong, I have a faint memory of some information on this, but don’t
recall the specifics. I believe they may have stopped using the prior emission
factor because they believed that ½ of the detection limit was either very
likely to be a large overestimate or was just too uncertain. I wonder if
someone else in the group has any more specifics. If EPA is no longer including
this, it may be an item we want to try to track down a factor for our own use
in the future. Jon ~~~~~~~~~~~~~~~~~~~ Jon Dettling Great Lakes Commission 734-274-5183 dettling@glc.org From: Doan, Congtru (ENE)
[mailto:Congtru.Doan@ontario.ca] Hi
Jon, Do
you any information on the Mercury from on-road mobile sources? The mercury
emissions decrease significantly in 2005 comparing to 2002. In 2002, the Hg
emission factors were taken as haft the detection limits. I can’t locate
any mercury emissions in 2005 NEI on-road mobile source data you posted
earlier! Thanks. Cong, |