Soil Toxicity I choose the topic because it is something i am knowledgeable and because the information is still fresh in my mind. The soil around our community has been infected by various toxins, one of these mainly being lead. Lead is naturally found within our soil along with other metals such as Zinc and Arsenic. Lead is measured in a unit known as parts per million. Parts per million, or ppm for short, is a conversion for milligram per cubic meter. The normal range for lead is currently at about 15-40 parts per million according to the EPA. After a experiment was performed we realized that the homes within our community have around 115 parts per million of soil, which is above the american average. According to the EPA, once lead reaches 400 ppm then it becomes a danger to us and once it reaches 1200 ppm then the area needs to be closed off as it become a serious health hazard. Although the results were not that high, it was still alarming. Lead has a negative impact on
Comments
Post a Comment