LAND,WATER AND AIR POLLUTION

Impacts of different pollutents

•          Nitrogen Dioxide:  NO2  

–        brownish gas irritates the respiratory system originates from combustion (N2 in air is oxidized); NOx sum of NO, NO2, other oxides of N

•          Ozone:  ground level O3

–        primary constituent of urban smog

–        reaction of VOC + NOx in presence of heat +sun light

•          Carbon monoxide: CO

–        reduces bloods ability to carry O2 

•          Lead:  Pb

–        cause learning disabilities in children , toxic to liver, kidney, blood forming organs

–        tetra ethyl lead – anti knock agent in gasoline

•          leaded gasoline has been phased out

•          Particulate Matter:  PM10 (PM 2.5)

–        respiratory disorders

•          Sulfur Dioxide:  SO2

–        formed when fuel (coal, oil) containing S is burned and metal smelting

–        precursor to acid rain along with NOx