construction emission and air pollution in delhi's ncr area

morning dawn evening sunset dusk haze sunrise mist horizon skyline cloud darkness sunlight sky light sun reflection construction emission air pollution delhi#39aph39#s ncr area heavy environmental impact site urban development dust particulate control smog industry quality health hazards delhi india crisis growth infrastructure equipment harmful emissions atmospheric concerns cityscape particles building estate degradation hazardous metropolitan public practices expansion fine problem industrial pollutant urbanization materials city life toxic fumes high rise bulidings construcion causing