A two-story home with infiltration rate of 0.5 ach has 100 m2 of floor space per floor and a total volume of 500m3. If 0.6 pCi/m2-s of radon is emitted from the soil and enters the house, what is the estimated indoor radon concentration? Picocurie is a common unit for radon measurement, use Table 7.14 as necessary. Report answers in pCi/L. arhcon484 Chapter 7 Air Pollutionqe rissolaTABLE 7.13Some Measured Pollutant Emission Rates for Various SourcesSourceGas rangeOvenOne top burnerKerosene heaterbConvectiveRadiantOne cigarette(sidestream smoke) (mg)elaborprugi!sisev yd boxinstoeteruoe won grind vestanullog seoron od yam yodial bazeugCO19001840CONONOx (as N)HCHO7159086Pollutant Emission Rate, (mg/hr)SO₂NO,5283"NOx reported as N.New portable heaters, warm-up emissions not included, SO₂ not measured.Source: National Research Council, 1981.Sources: Traynor et al., 1981, 1982.SO₂Particles (<0.5 μm)RadonSource: Traynor et al., 1981.122150.05195 of barwTABLE 7.14todDecay Constants or Reactivities, KPollutant0.91.5K (1/hr)0.00.00.150.40.230.487.6 X 10-311 1HCHO23161.14.01.44

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Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A two-story home with infiltration rate of 0.5 ach has 100 m² of floor space per floor and a total volume of 500m³. If 0.6 pCi/m²-s of radon is emitted from the soil and enters the house, what is the estimated indoor radon concentration? Picocurie is a common unit for radon measurement, use Table 7.14 as necessary. Report answers in pCi/L.

arh
con
484 Chapter 7 Air Pollution
qe ris
sola
TABLE 7.13
Some Measured Pollutant Emission Rates for Various Sources
Source
Gas range
Oven
One top burner
Kerosene heaterb
Convective
Radiant
One cigarette
(sidestream smoke) (mg)
elabor
prugi!
sisev yd boxinstoeter
uoe won grind ves
tanullog seor
on od yam yodi
al bazeug
CO
1900
1840
CO
NO
NOx (as N)
HCHO
71
590
86
Pollutant Emission Rate, (mg/hr)
SO₂
NO,
52
83
"NOx reported as N.
New portable heaters, warm-up emissions not included, SO₂ not measured.
Source: National Research Council, 1981.
Sources: Traynor et al., 1981, 1982.
SO₂
Particles (<0.5 μm)
Radon
Source: Traynor et al., 1981.
122
15
0.05
195 of barw
TABLE 7.14
tod
Decay Constants or Reactivities, K
Pollutant
0.9
1.5
K (1/hr)
0.0
0.0
0.15
0.4
0.23
0.48
7.6 X 10-3
11 1
HCHO
23
16
1.1
4.0
1.44

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