Ammonium nitrate forms when ammonia gas and nitric acid, produced by agricultural activities and fossil fuel combustion, respectively, react in the atmosphere. The findings appear in Environmental ...

the most robust finding was that ammonium nitrate particles were linked to poorer learning and memory," Herting noted. While fossil fuel combustion remains a major source of PM2.5 in urban areas ...

Addressing local inefficient combustion processes can effectively ... “Outside Delhi, ammonium sulfate, ammonium nitrate, and biomass-burning-derived organic aerosols are more prominent.” ...