Use of phosphate-based fertilizers which contain arsenic, cadmium, lead in trace amount, use of untreated sewage that contained the heavy metals as fertilizers, contaminated run-off from mining and smelting industries near agricultural farmlands, industrial wastes from manufacturing industries that leach into the soil, urban construction also introduce heavy metals to the soil, chemical spills, landfill leakage, recycling of materials, atmospheric deposition, weathering and erosion as well as other natural processes (Adamu et al
Cleaner formulations, meaning those without artificial sweeteners or additives, may cost more because of their higher quality and ingredient sourcing
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sterile water lacks the preservative and is generally modeled for single-use scenarios
Everything that enters the body through the mouth is digested in the stomach and intestines
Xian X, Zhang Z, Wang S, Cheng J, Gao Y, Ma N, Li C, Wang Y