What are some examples of environmental sources of exposure of populations to toxic heavy metals? What factors can exacerbate the effects of toxic exposures on populations with low socioeconomic status?
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1. On heavy metal poisoning and environmental sources - 150 words
2. Factors affecting HMP among the poor - 100 words 3. Examples for #2 - 100 words
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Heavy Metal Poisoning in the Environment
Metal poisoning or heavy metal poisoning is often referred to as metal toxicity whereby certain metals in one form or another have a toxic, and sometimes fatal effect on living things including of course, human beings. This happens when metals form poisonous soluble compounds or when they are not essential minerals and do not have any biological role (an example of this is lead where exposure in heavy doses can lead to eventual death). The reason why it is called heavy metal poisoning is that more often than not, it is the heavier metals where exposure can lead to poisoning. These metals include aluminium phosphide, arsenic, beryllium, cadmium, copper, iron (when there is a large excess of iron intake), lead, lithium, manganese, lead, mercury, thallium and tin. According to the Life Extension Foundation (2014), "Heavy metals with adverse health effects in human metabolism (including lead, cadmium, and mercury) present obvious concerns due to their persistence in the environment and documented potential for serious health ...
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