“Requiring NH3 scrubbing within current emission control areas leads to smaller improvements in PM2.5-related mortalities (22,100 avoided mortalities for NH3-H2 and 623,900 additional ...

If necessary, protect non-glass surfaces of an overhead projector with clear plastic. Dip one Q-tip into concentrated hydrochloric acid (HCl) and a second cotton swab into concentrated aqueous ammonia ...