Major metallic contamination in groundwater is A serious problem in Pakistan, and scientific studies have noted the existence of large metals which include lead, cadmium, chromium, and nickel in many samples over the permissible limits established via the WHO [161,a hundred seventy five]. The sources of large metal contamination are https://sustainablemilkcarton.blogspot.com/2025/02/gable-top-carton-versatile-and.html