HomeMy WebLinkAboutCOM 0491.024 2020-2022 From: Debbie H
Sent: Tuesday, November 16, 2021 6:38 AM z1fil )QV 16 AN a. 33
To: Council Testimony
Cc: Villegas, Rebecca
Subject: Climate Resilence and Natural Resources Managment
Aloha- Please eliminate the use of Glyphosate based pesticides on our County properties. The cumulative effect of
using this chemical is what is important and will contaminate our drinking water and ocean water which will affect
the reef and ocean ecosystem. I am attaching a paper from the National Institute of Health, Library of Medicine. The
cumulative use of it causes it to be in groundwater and the ocean. That is what to be avoided. It also has
an effect on nearby crops. This is an important study.
With warm aloha-
Debbie Hecht
Here is the Conclusion, several diagrams of the uptake of the chemical and the effects on water resources (drinking
water and ocean) and the link to the paper:
"CONCLUSIONS: Glyphosate has often been termed as a "once-in-a-century herbicide" because of its
tremendous impact on weed management and the crop production industry. Although known to degrade
relatively quickly in the soil following application, glyphosate and its metabolites can possibly persist in soil,
water, and plant tissues in certain conditions. Research suggests that glyphosate may reach groundwater,
surface water, and several other nontarget sites through processes such as leaching and surface runoff. It is
also evident from several studies that glyphosate applied to cropping systems can potentially reach unintended
areas and plant tissues through processes like off-target herbicide movement, spray drift, and root uptake.
While such exposure of crops to glyphosate would be considered sublethal, it would seem wise to comprehend
the consequent impacts on the health and nutrition of crops.
The best way to prevent these adverse crop effects related to glyphosate use is to avoid the "off-target"
movement or"spray drift" of this herbicide to unintended areas from the application site. Furthermore, soil
analysis for residual content of glyphosate is beneficial to detect whether the affected soils contain herbicide
residues above the threshold that leads to root uptake and related crop effects. Clearly, further research is
needed to understand crop risks related to glyphosate residues in soils, particularly in soil settings with low
adsorption capacity and at very high rates of herbicide application.
Owing to the relatively high mobility of glyphosate, the likelihood of a rise in surface and groundwater content in
tandem with herbicide use is high. Hence, potential routes of exposure into the environment, as well as the
consequent implications on animals and humans, need to be explored more thoroughly. Moreover, there is an
increasing concern toward the existence and concentration of glyphosate residues in a variety of crops
produced for human and animal consumption. This necessitates an advanced dietary risk assessment of
glyphosate resulting from its exposure.
In a nutshell, the extensive use of glyphosate and the environmental risks associated with it warrant awareness
among its users about its judicious utilization and necessitate further intense investigations to mitigate, avoid, or
remove the problems resulting from its use." https://www.ncbi.nim.nih.gov/pmc/articles/PMC6918143/
Com . No.
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Debbie Hecht
Website: Thoughts and Theories: www.debbiehecht.com
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