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Pesticide Out Of Control Bio Sci Spring 2006 By: Vivian Metry
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Problem Extensive use of certain types of pesticides results in both human health risks and environmental hazards.
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This problem occurs under: poor safety levels in plants Lack of worker’s knowledge in safe handling and disposal of pesticides Insufficient attention to protective clothing, and showering.
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Organophosphates (Ops) Organophosphates are used as insecticide along with other forms such as: Carbamates Organochlorinesand Pyrethroids
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Pesticide Hazards Egyptian farmers use massive amounts of OPs every year as a form of pesticide Through extended research and studies researchers concluded that these forms of insecticide are extremely dangerous to human health as well as environmental well being.
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Exposure Grave health problems were reflected among farmers who were exposed to OPs and other forms of insecticide. These problems include
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61% showed symptoms of chronic pesticide poisoning ( blurred vision ) 16.6 % headache/asthenia (weakness)/low back pain 14% dizziness/ parasthesia 12% numbnessand 9.5% arthralgia (joint pain)
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Impacts On Human Health 50% of workers reflected indications of neurological effects such as sensory loss and reduced or lost reflexes in their ankle or knee. Those who were exposed also showed incidence of psychiatric disorders(55%).
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Who Is Effected More? Experienced Farmers: These farmers had extensive exposure to pesticides and thus have high chance of disease symptoms. Ex. 36% experienced superficial sensory loss. Part Time Farmers: These workers are lightly exposed to pesticides and thus have lower chance of attaining disorders. Ex. Only 7% experienced superficial sensory loss.
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Conclusion The longer a farmer is exposed to pesticides the higher his/ her chance of attaining a disorder Long term exposure = more severe symptoms
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Human Poisoning And Health Risks
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Indication Of Exposure Cholinesterase is an enzyme that indicates OP exposure. Low Cholinesterase activity indicates exposure of an individual to Ops. This may results in clinical illness
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Environmental Risks Loss of biodiversity Wildlife deaths Animal and livestock deaths Interference with natural pest control Resistance among pests Residues in food Water pollution
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Loss of Biodiversity Habitat destruction Disrupting food web Economic loss
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Potential Solutions Reduce the need/ dependence on pesticides and inhibit unnecessary heavy use. Increase the use of sustainable and ecological alternatives to chemical pest control
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Additional Reading www.pan-uk.org http//infoventrues.com
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