Solid pollutants at four different sites at Karachi were collected by dry deposition for a month. Water soluble portions were analysed for arsenic, cadmium, copper, manganese, nickel, lead, antimony, zinc, sodium, potassium, ammonium, chloride, nitrate, phosphate and sulphate. The probable sources of emission of these elements and their correlation with each other is discussed.
HAMIDA TABASSUM ,SAEEDAN BEGUM ,
You can use below filter to find your desired issue