Risk Assessment of Malathion
Today the city needs to look at all the factors that effect this decision to use aerial spraying Malathion or to do nothing about the mosquito population. Health wise we need to protect ourselves again West Nile Virus (WNV). Studies from the Center for Disease Control and Prevention (2007), there were 4,269 WNV cases in the U.S. in 2006, including 177 fatalities. Our area is thought to have 50 cases this year alone with 2 fatalities; can we as a city afford to take that chance? If one of those 2 was your loved one could you live with yourself knowing that by using an aerial spray, educating people to stay ...view middle of the document...
Common early signs or mild symptoms of acute cholinergic poisoning include miosis (pinpoint pupils), headache, nausea/vomiting, dizziness, muscle weakness, drowsiness, lethargy, agitation, and anxiety.
The probabilities of these last two hazards in our area with the doses we are using are not applicable to these symptoms:
Moderate or severe poisoning can result in chest tightness, difficulty breathing, bradycardia, tachycardia, hypertension, pallor, abdominal pain, incontinence, diarrhea, anorexia, tremor/ataxia, fasciculation, lacrimation, heavy salivation, profuse sweating, blurred vision, poor concentration, confusion, and memory loss.
Life-threatening or very severe signs and symptoms, such as coma, seizures, respiratory arrest, pulmonary edema, loss of reflexes, and flaccid paralysis, can occur at high doses, such as in the cases of attempted suicide.
Malathion is not toxic unless absorbed into the blood system through the body tissues itself. Each person will respond differently. Commonly affected are lymph nodes and cell white blood cells.
Exposure Assessment by the...