or fillers. even at elevated temperatures, such as in the event of fire, no harmful gases are released other than the possible formation of co in air at tempera- tures above °c, as determined by the supply of oxygen. owing to the low level of impurities in the graphite and the almost inert nature of...
problems of water pollution and fish escapes. fish farmed in freshwater ponds at low density (meaning the fish are not crowded) are less prone to disease, the need for chemicals, and water pollution. mercury in seafood: safe choices mercury in seafood: safe choices mercury levels in fish should be a...