Home > News > Manufactured Nanoparticles Could Pose a Hazard to Crops, But Are They a Risk?
August 25th, 2012
Manufactured Nanoparticles Could Pose a Hazard to Crops, But Are They a Risk?
The real issue—and indeed as with any issue related to chemicals and Environmental, Health and Safety (EHS) concerns—is what is the real risk of these nanoparticles finding themselves in soil concentrations equal to those that were used in the experiments. The relevant formula is Hazard x Exposure = Risk. If we say that MNMs are a hazard, but have no figures on the level of exposure, how are we supposed to determine risk?
In other words, what concentrations of metal oxides did the researchers use in the soil? The answer is not explicit in either the news stories covering the research, nor the abstract that we have access to in the PNAS journal reference. While the researchers do say in at least one of the articles covering the research that ""MNMs…have a high affinity for activated sludge bacteria, and thus concentrate in biosolids," it's still not clear in what kind of concentrations these nanoparticles exist in the environment, or what that might mean in terms of risk.
News and information
Vegetable oil ingredient key to destroying gastric disease bacteria: In mice, therapeutic nanoparticles dampen H. pylori bacteria and inflammation that lead to ulcers and gastric cancer November 25th, 2014
Research yields material made of single-atom layers that snap together like Legos November 25th, 2014
Blu-ray disc can be used to improve solar cell performance: Data storage pattern transferred to solar cell increases light absorption November 25th, 2014
A*STAR SIMTech wins international award for breaking new ground in actuators: SIMTech invention can be used in an array of industries, and is critical for next generation ultra-precision systems November 24th, 2014
Graphene chips are close to significant commercialization October 1st, 2014
Harris & Harris Group Continues Its Blog Series to Highlight Most Impactful Portfolio Companies With Produced Water Absorbents, Inc. July 9th, 2014
Harris & Harris Group Continues Its Blog Series to Highlight Most Impactful Portfolio Companies With HZO, Inc. June 12th, 2014
3D printing and microrobots making progress on building tissue with blood vessels which will enable large printed organs June 1st, 2014
Aromatic food chemistry to the making of copper nanowires November 24th, 2014
Production of Biodegradable Nanocomposites of Wheat Gluten in Iran November 6th, 2014
New tool could help reshape the limits of synthetic biology: The 'telomerator' reshapes synthetic yeast chromosome into more flexible, realistic form, redefining what geneticists can build November 3rd, 2014
Nanoparticles Display Ability to Improve Efficiency of Filters October 28th, 2014
Iranian Experts Clean Uranium-Contaminated Water by Nano-Particles November 23rd, 2014
Silver Nanoparticles Produced in Iran from Forest Plants Extract November 20th, 2014
Nano Sorbents Able to Remove Pollutions Caused by Oil Derivatives November 20th, 2014
Application of Nanocomposites in Production of Photocatalysts for Water Treatment November 17th, 2014
Sustainable Nanotechnologies Project November 20th, 2014
A gut reaction November 19th, 2014
Nanosafety research – there’s room for improvement October 29th, 2014
Plastic nanoparticles also harm freshwater organisms October 18th, 2014