<prompt> Translate the following text to EnglishKwa ajili ya mercury, 1996 National Toxics Inventory ilibadilishwa kulingana na juhudi za 1999 za kukusanya habari kwa ajili ya huduma za makaa ya mawe na 2002 MACT kutekeleza kwa ajili ya incinerators taka za matibabu na 2000 MACT kutekeleza kwa ajili ya combustioners taka za manispaa.  <response>: For mercury, the 1996 National Toxics Inventory was modified based on the 1999 information collection effort for coal utilities and the 2002 MACT implementation for medical waste incinerators, and the 2000 MACT implementation for municipal waste combustors was used. 