1. Changing Metal Cycles and Human Health;Nriagu,1984
2. Mercury study report to congress;U.S. Environmental Protection Agency,1997
3. Clean air mercury rule;U.S. Environmental Protection Agency,2005
4. Mercury transformations in coal combustion flue gas;Galbreath;Fuel Process. Technol.,2000
5. Atmospheric mercury—a review;Lindqvist;Tellus,1985