A study published in the journal of PNAS highlights the impact of ammonium sulfate that is currently abundant in many locations around the globe. This substance was found in high concentrations in Asia and in the U.S. cities of Houston in Texas and Los Angeles in California.
Ucwaningo olusakazwe kumagazini lwe-PNAS luqhakambisa umthelela we-ammonium sulfate njengamanje etholakala ngobuningi ezindaweni eziningi emhlabeni. Yatholakala ngobuningi e-Asia nasemadolobheni ase-US i-Houston eTexas naseLos Angeles eCalifornia.