“…10% of the total, most can be captured by the typical air pollution control devices (APCD) such as electrostatic precipitators and baghouses. However, the elemental mercury is difficult to capture with typical APCD due to its volatility and chemical stability [3,4,9]. Mercury in atmosphere is mostly in the form of elemental mercury vapor, it can circulate in the atmosphere for 1-2 y, allowing its wide dispersion and long-distance transportation [10].…”