An action will elevate the concentrations of three chemicals in the drinking water supply: 1,1,1- trichloroethane to 2 mg/L, tetrachloroethylene to 0.04 mg/L and 1,1-dichloroethylene to 0.1 mg/L. Determine the lifetime risk of developing an undesirable health effect due to this exposure for a 50 kg adult who drinks 1 L/day of water containing these elevated pollution levels. Is there cause for concern? Why?

An action will elevate the concentrations of three chemicals in the drinking water supply: 1,1,1- trichloroethane to 2 mg/L, tetrachloroethylene to 0.04 mg/L and 1,1-dichloroethylene to 0.1 mg/L. Determine the lifetime risk of developing an undesirable health effect due to this exposure for a 50 kg adult who drinks 1 L/day of water containing these elevated pollution levels. Is there cause for concern? Why?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter13: The Chemistry Of Solutes And Solutions

Section: Chapter Questions

Problem 94QRT

See similar textbooks

Similar questions

A martini, weighing about 5.0 oz (142 g), contains 30.0% by mass of alcohol. About 15% of the alcohol in the martini passes directly into the bloodstream (7.0 L for an adult). Estimate the concentration of alcohol in the blood (g/cm3) of a person who drinks two martinis before dinner. (A concentration of 0.00080 g/cm3 or more is frequently considered indicative of intoxication in a normal adult.)
1. The allowable concentration of arsenic in drinking water is 0.05 mg of arsenic per liter of water. 2. A 2.5 g sample of groundwater contains 5.4 g of Zn+2. 3. A solution containing 13.5 g glucose in 0.1 kg water Solution ppm Solution ppb 1. Given: Required: 2. Given: Required: 3. Given: Required:
Too much manganese in drinking water can cause the following undesirable effects: black to brown color; black staining; bitter metallic taste . The EPA's Secondary Maximum Contaminant Level for manganese in drinking water is5.00×10-2 mg/L.(1) If 1.52×104 liters of water in a storage tank contains 1.08 grams of Mn , what is the contaminant level in ppm? ppm Assume that the density of the impure water is 1.00 g/mL.(2) Is this level acceptable based on EPA guidelines?
1. What volume of water is needed to be mixed with 150 ml of alcohol to prepare a 25.0 % alcohol solution ? 2. A 2.5 g sample of groundwater was found to contain 5.4 ug (microgram) of Zn 2+ . What is the concentration of Zn 2+ in parts per million?
A sample (50 mL) of a bottled water was added to a 100 mL volumetric flask and then diluted to the mark. From this stock solution, 50 mL was taken, added to a 100 mL volumetric flask and diluted to the mark. Final concentration of the serial dilution: 587.7161ppm. 1. what is the concentration in the original bottle (ppm)
Too much iron in drinking water can cause the following undesirable effects: rusty color; sediment; metallic taste; reddish or orange staining. The EPA's Secondary Maximum Contaminant Level for iron in drinking water is 0.300 mg/L. (1) If 3.82×104 liters of water in a storage tank contains 4.18 grams of Fe , what is the contaminant level in ppm? ______ppm. Assume that the density of the impure water is 1.00 g/mL. (2) Is this level acceptable based on EPA guidelines? ________
What is the level of heavy metal (in ppm) in a 3.89 kg sample that has 0.9 mg of the heavy metal present in the sample?? 1. 0.12 ppm 2. 0.46 ppm 3. 0.23 ppm 4. 2.3 ppm 5. 23.1 ppm
Exactly 500.0 mL of CO is mixed with 1.000 m3 (1,000,000 mL) of air. Calculate the resulting concentration of CO in ppm.
Benzene (i), toluene (ii), acetonitrile(iii), and methane(iv) are among the chemical wastes discovered in a river.Please give 2 to 3 symptoms of exposure of each chemical waste.
50 mL of stock solution were taken and added to flask. Then 50 mL of Di water were added to the flask. This is solution 1. Then 50mL of solution 1 were taken and added to a flask and 50 mL of Di water were added to the flask. This is solution 2. Then 50mL of solution 2 were taken and added to a flask and 50 mL of Di water were added to the flask. This is solution 3. Then 50mL of solution 3 were taken and added to a flask and 50 mL of Di water were added to the flask. This is solution 4. Find the concetrations of each solution. Information of stock solution - molar mass- 534.3g/mole 0.587g in MilliQ
Ways or means that will help reduce or lessen the effects of these chemical reactions to avert future fish kills.
A city's water supply is flouridated by adding NaF. The desired concentration of F-( ion) is 1.6 ppm. How many milligrams of NaF should be added per gallon of treated water if the water supply is already 0.2ppm in F-(ion)