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Nanotechnology & Health
a collection of articles about nanomaterials and health
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Nanomaterials in the environment: an unknown risk - Australian Policy Online

Scientists are only just beginning to understand the potential risks associated with releasing nanomaterials into the environment. These include potentially harmful effects on soil and water organisms.
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Nanomaterials In Soil: Our Future Food Chain? | Institute for Agriculture and Trade Policy

Nanomaterials In Soil: Our Future Food Chain? | Institute for Agriculture and Trade Policy | Nanotechnology & Health | Scoop.it

"Here we review a small part of the rapidly growing scientific literature that raises questions about how ENMs might affect soil health and soil biodiversity in field trials and subsequently the commercial and chronic application of ENMs in agricultural soil. The questions concern not only the intentional use of ENMs in fertilizers, but the incidental presence of ENMs in “biosolids,” defined by the U.S. Environmental Protection Agency (EPA) as “treated residuals from wastewater treatment that can be used beneficially.”11 Biosolids are often used to fertilize agricultural fields. As a Purdue University researcher recently noted, “Land application of biosolids is standard procedure now [at least in the United States] . . . If any of that [biosolid] contains nanotubes, that could be a problem.”"

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Beyond Pesticides Daily News Blog » Nanoparticles Found To Be Toxic to Earthworms

Beyond Pesticides Daily News Blog » Nanoparticles Found To Be Toxic to Earthworms | Nanotechnology & Health | Scoop.it

"Earthworms are excellent indicators of soil health, and provide vitally important ecosystem services by aerating the soil, cycling nutrients, and increasing microbial activity. The Alterra study, led by Doctoral candidate Merel van der Ploeg, compared the health and growth of earthworms in soil containing carbon and silver nanoparticles at varying amounts with worms in regular soil. Mr. Van der Ploeg found the soil containing nanoparticles reduced reproduction, slowed growth, and increased the mortality rate of exposed earthworms. Young worms are particularly sensitive to the effects of the nanomaterial. Mr. Van der Ploeg notes, 'I also found damage to the skin tissue and intestinal wall, often accompanied by damage to the underlying muscle, but even though tissue damage is usually associated with inflammation, I did not observe this in the earthworms. There seemed to be a suppression of the immune system.'"

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Nanomaterials in fertilizer products could threaten soil health, agriculture | Institute for Agriculture and Trade Policy

Nanomaterials in fertilizer products could threaten soil health, agriculture | Institute for Agriculture and Trade Policy | Nanotechnology & Health | Scoop.it

"“In light of published research, the Obama administration should institute an immediate moratorium on fertilizing with biosolids from sewage treatment plants near nanomaterial fabrication facilities. A moratorium would give researchers time to determine whether nanomaterials in soil can be made safe and to research alternatives to building soil heath, rather than depending on fertilization with biosolids.” says IATP’s Dr. Steve Suppan.

Over time, the report explains, nanomaterials in these agricultural inputs can accumulate and harm soil health. More research is urgently needed to adequately understand possible long-term impacts of nanotechnology.

“As agri-nanotechnology rapidly enters the market, can soil health and everything that depends on it can be sustained without regulation?” asks Suppan. “That’s the question regulators, researchers and anyone involved in our food system should be asking themselves.”

The report also details risks specific to farmers and farmworkers applying dried biosolids that incorporate nanomaterials, including inflammation of the lungs, fibrosis and other toxicological impacts."

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Chemical Watch | News Item | Soya crops take up cerium nanoparticles

Cerium dioxide nanoparticles in soil can migrate into crop plants, according to a US study on soya bean plants funded by the National Science Foundation and the US EPA.
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Nanoparticles Harm Crops - The Scientist Magazine®

Nanoparticles Harm Crops - The Scientist Magazine® | Nanotechnology & Health | Scoop.it
Manufactured nanomaterials, such as those found in cosmetics and fuel, affect soil productivity and food quality of soybean crops.
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