Risk factors for exposure to heavy metals (lead) in the risk group

Assalamualikum warohmatullahi wabarokatuh, As for the background of my research is that environmental pollution either water pollution, soil and air in the environment already at the level need to get attention from stakeholder either the government, environmentalists, academics, private sector even the individual itself, in where they have their respective roles in the stewardship to safeguard, preserve and control the occurrence of environmental pollution. there have been many studies conducted in several places indicating that the level of environmental pollution has been much concern, so it is necessary to do strategic efforts to prevent the worsening of environmental conditions due to contamination by dangerous materials either in the form of liquid waste, solid waste and gas. a very bad consequence if air pollution in particular is happening is mencainya polar ice where if that happens then many low areas will sink due to rising sea levels, another result is the occurrence of global warming of course a greater impact that includes the universe. the research that I do may have also done a lot by other researchers in other places but here I want to provide information that the