It is completely non-toxic to humans From Wikipedia, http://en.wikipedia.org/wiki/DDT#Effects_on_human_health http://en.wikipedia.org/wiki/DDT#Effects_on_human

It is completely non-toxic to humans From Wikipedia, http://en.wikipedia.org/wiki/DDT#Effects_on_human_health http://en.wikipedia.org/wiki/DDT#Effects_on_human_health: DDT is classified as "moderately toxic" by the United States National Toxicology Program (NTP)[46] and "moderately hazardous" by the World Health Organization (WHO) The evidence on Wiki is mixed. Maybe it makes sense to use it for malaria, but there are also other solutions that might have better cost/benefit.