Required information A study was undertaken to determine if water in an area nea

Question

Required information A study was undertaken to determine if water in an area near a landfill contained pharmaceutical wastes. The ground water levels of the area were tested and the results compiled in the table shown below. The "Toxicity Threshold Level" column is the amount of a chemical that would produce amount of each chemical sampled in the ground water adverse health effects. The "L Levels Found" column Chemical Toxicity threshold Levels found name levels (mg/L) (mg/L) Arsenic Barium Chloroform Lindane Mercury 5.0 100.0 6.0 0.4 0.2 4.2 2.8 18.3 1.2 0.1 Based on the following information about lindane from the Environmental Protection Agency (EPA), select all of the following statements that are plausible Lindane is also used topically for treatment of head and body lice and scabies. Exposure to lindane may occur from eating contaminated food or by breathing air contaminated during formulation or use. Lindane is quite toxic to humans. The acute effects of lindane consist of irritation of the nose and throat and effects on the blood. Chronic exposure has been associated with effects on the iver, blood, and nervous, cardiovascular, and immune systems. Lindane has been detected in groundwater and surface water samples Lindane has been listed as a pollutant of concern due to its persistence in the environment, potential to bioaccumulate, and toxicity to humans and the environment" http:/www.epa govittnatw01/hitheflindane.html 21 of 59 Next >

Explanation / Answer

Answer. Top left and right options are plausible

Bottom line middle option and bottom first is also plausible.

NON PLAUSIBLE OPTION is :

Lindane is a persistent pollutant entered the environment through pharmaceutical companies or by its use as agricultural pesticide.

It is potent in nature.

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