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human sludge as fertilizer

I posted a note asking for input about human sludge being used as fertilizer. I was surprised by how little a response I got. It was suggested I learn more about sludge. So I went on the internet and found more than I could ever read. But one thing is clear, the more that is known about using sludge for fertizer, the more concerned I am getting. Few chemicals are tested for and yet there may be thousands of chemicals from cities spread onto the fields. But the sludge must be spread unless we get rid of the people. I also am convinced many farmers will ignore the potential dangers of sludge just so they can get free fertilizer.

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