environmental science

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week2assignment3.docx

Chemical herbicides and pesticides

A pesticide is a most often chemical substance designed to destroy one or more species of living things. The most common are herbicides (against weeds), insecticides (against insects ) and fungicides (against fungi ). There are, however, many other varieties of pesticides: rodents , crows, etc. The dangers of pesticides on the environment are numerous. In addition to killing the target species, they can also very well contaminate and kill other actors in the food chain . Birds, for example, are very often affected by pesticides by eating contaminated insects. In addition, pesticides pollute the air we breathe, and this may be the case of water reserves to the point of making the latter not drinkable. (Cork & Krueger, 1991). This relate to this week theme to show that the affect that pesticides and herbicides have on living and non-living organism such as soil, sand and clay.

These chemicals have the possibility of killing everything that they touch.. Pesticides break down into different categories and therefore can kill anything from plants to animals and even have health effects on humans. Chemical herbicides and pesticides benefit crops but are horrible for the environment and therefore present a challenge when trying to achieve environmental sustainability. Due to the nature of these chemicals, their toxic chemical mixture being released into the environment doesn’t allow for global stability within the environment. The term chemical herbicides and pesticides does represent an obstacle to the goal of sustainability because the effect that this chemical puts out, is completely opposite for what the world needs.

Two specific actions that we can take to promote environmental sustainability in relation to chemical herbicides and pesticides are by using appropriate tools for ecological based pest management that determines the best chemical products for a certain and find a way to reduce health and environmental risks of pesticide use. There is a group called “Beyond Pesticides” that conducts research on the many different types of pesticides. This organization has links to national and international organizations and prides themselves in protecting health and the environment with science, policy and action (Pesticides, 2007)On a national level if we took the two specific actions named above and had policies created on behalf of them, then that could change the huge risk that these chemicals impinge on environmental sustainability.

References

Cork, D. J., & Krueger, J. P. (1991). Microbial transformations of herbicides and

pesticides. Adv. Appl.Microbiol, 36,

Pesticides, B. (2007). National coalition against the misuse of

pesticides. https://www.beyondpesticides.org/resources/state-pages/links-to-organizations