3-115 prolonged exposure to mercury even at relatively low but toxic concentrati

Question

3-115 prolonged exposure to mercury even at relatively low but toxic concentrations in the air is known to cause permanent mental disorders, insomnia, and pain and numbness in the hands and feet, among other things, therefore, the maximum allowable concentration of mercury vapor in the air at work places is regulated by federal agencies. These regulations require that the average level of mercury concentration in the air does not exceed 0.1 mg/m^3

Consider a mercury spill that occurs in an airtight storage room at 20 C in San Francisco during an earthquake . Calculate the highest level of mercury concentration in the air that can occur in the storage room, in mg/m^3, and determine if it is within the safe level. The vapor pressure of mercury at 20 C is 0.173 Pa. Propose some guidelines to safeguard against the formation of toxic concentrations of mercury vapor in air in storage rooms and laboratories.

Explanation / Answer

Hello dear brother: Talking about Mercury Vapor also subject to the use of the equation of the case of invasive: PV = MRT Or write in terms of the (density-roh): P = roh RT Required of you in the matter density is a calculation of the amount of mercury in the chamber (mg / m ^ 3) and propose methods to maintain the specified level in the world. In the relationship above sponsor units (heat - K) (fixed gases - J / kg K) (pressure - Pascal) results (density - kg / m ^ 3) and around the unit required to have http://www.cdc.gov/niosh/pdfs/7311024d.pdf The maximum concentration of mercury vapor in the air is given at the bottom of page 84

Related Questions

Navigate

• Browse (All)
• Browse 3
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.