The information provided by MDCH and the MDEQ indicates most of the soil contamination at the site has been removed.

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The remaining soil contamination is located several feet below uncontaminated surface soil.

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China Business News yesterday reported severe soil contamination of up to 12m tonnes of grain a year, causing annual losses of over 20bn yuan.

BBC: China media: Pollution woes

Soil contamination has long been an issue in China, were rapid industrialization and lax enforcement of environmental-protection laws have resulted in the pollution of large swathes of arable land with a variety of heavy metals.

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In Washtenaw County and Ann Arbor, Michigan a 1, 4-Dioxane, in groundwater and surface soil contamination from Gelman Science, persists after nearly 20 years of cleanup activities and has now spread in groundwater to an area over three miles long and a mile wide.

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And what prevents soil and surface water contamination from countless units that ultimately wind up in landfills?

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The culprit parasite, Toxoplasma gondii, can get into the food chain via cats faeces causing contamination of soil, water and plants.

BBC: Infection risk posed by cats revealed

Heavy-metal contamination in China's soil also includes high amounts of lead and arsenic.

WSJ: Cadmium-Tainted Rice Found in Guangzhou

Researchers believe the contamination passed not only into the soil and water, but also into the gene pool, with abnormal numbers of children since being born with genetic malformations.

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