Estimate steady-state radon concentration in the crawl space

Reference no: EM13310704

You purchase a house with a known radon problem. The house has a 1 m high dirt-floored crawl space. The emission rate of radon into the crawl space is reported to be 0.6 pCi/m2s. An exhaust system was added to provide 1 air exchange per hour (ACH) in the crawl space. The outdoor concentration of radon is 1 pCi/L.

Develop a mass balance for this problem and estimate the steady-state radon concentration in the crawl space (in pCi/L).

Reference no: EM13310704

Questions Cloud

Risk diversification as it relates to international capital : Write a 200 word paper or risk diversification as it relates to international capital flows for a MNC.Use a specific company and specific countries for your example as you explain why companies view this topic

What was the no2 concentration in parts per million : A 1 m3 sample of air was found to contain 88 mg/m3 of NO2 .The temperature and pressure were 25.0°C and 103.2 kPa when the air sample was taken. What was the NO2 concentration in parts per million

The most important consideration of a government agency : The most important consideration of a government agency

Compute 95 percent confidence intercals for b0 and b1 : An article reports measurements of expansion for several concrete bridges in the area of Quebec City. Following are measurements of horizontal and vertical expansion (in parts per hundred thousand) for several locations

Estimate steady-state radon concentration in the crawl space : The house has a 1 m high dirt-floored crawl space. The emission rate of radon into the crawl space is reported to be 0.6 pCi/m2s. An exhaust system was added to provide 1 air exchange per hour (ACH) in the crawl space. The outdoor concentration of..

The role of the u.s congress regarding government contracts : Determine the most important factors in the role of the U.S Congress regarding government contracts.

Should the soil be compacted at the dry of optimum or at wet : A soil is to be compacted on a site and it is expected that the soil contains a high percentage of montmorillonite. Briefly explain the working principles of two tests that can be carried out to ascertain the presence of montmorillonite in the soil.

Choose a company should be a company with an online presence : Choose a company; this should be a company with an online presence (it can also have an in-store component) and should be a for-profit entity

Find return on equity for each of different leverage factors : A rental company is deciding whether or not to purchase the equipment. The company estimates the equipment will create annual incomes of $110K and have annual operating costs of $20K.

User Account

All Pages