Prof Henk Bouwman
  https://news.nwu.ac.za/detailed-expert-list



Lincoln University, New Zealand:

"Effects of silver nanoparticles on bacteria and earthworms"
  https://researcharchive.lincoln. ... msci.pdf?sequence=4

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"Speciation of and the effects of silver nanoparticles on the earthworm"
  https://researcharchive.lincoln. ... amp;amp;isAllowed=y

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"Nerve conduction velocity as a non-destructive biomarker in the earthworm"
  https://link.springer.com/article/10.1007%2Fs11356-018-2469-1，