Soil contamination - Wikipedia, the free encyclopedia
Soil contamination or soil pollution is caused by the presence of xenobiotic . metals, petroleum, solvents, and many pesticide and herbicide formulations can be .
http://en.wikipedia.org/wiki/Soil_contamination

Land pollution - New World Encyclopedia
Herbicides are used to kill weeds, especially on pavements . They are similar to auxins and most are biodegradable by soil bacteria.
http://www.newworldencyclopedia.org/entry/Land_pollution

Sources of Soil Pollution | eHow.com
Soil pollution occurs from trash thrown onto the ground and exposure from landfills. Acid rain and the application of herbicides and pesticides on lawn and crops .
http://www.ehow.com/about_5399483_sources-soil-pollution.html

Ways To Prevent Soil Pollution | LIVESTRONG.COM
Jul 30, 2010 . Common pollutants include herbicides and pesticides; litter and waste. Soil pollution is usually caused by mistreatment of the soil through poor .
http://www.livestrong.com/article/171421-ways-to-prevent-soil-pollution/

Assessment of Heavy Metal and Herbicide Levels in Soil and ... - IEEE
Cd concentrations in 40% of vegetable soils and 6.67% of rice soils were higher . herbicide level , land usage , maize , paddy , plant product , pollution-free .
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5748000