|
Environment |
Normal |
Contaminated Outside Dusty |
Extremely Cold Weather Climates |
High Humidity Biogenic |
Day Care Center
|
2 weeks
|
1 week
|
2 weeks |
1 week |
Nursing Home
|
1 month |
1 month |
1 month |
1 week |
2 Person Residence,
Nonsmoking
|
6-12 months |
2 months |
4-6 months |
4-6 months |
2 Person Residence,
Smoking
|
4 months |
2 months |
3 months |
2 months |
Residence with
Young Children
|
6 months |
1 month |
3 months |
3 months |
Residence with
Young Children & Pets
|
3-6 months |
1 month/td>
2 months |
2 months |
|
Office Building,
Ground Floor
|
3-6 months |
1-4 months |
2-6 months |
2-6 months |
Office Building,
Higher Floors
|
6-12 months |
2-6 months |
3-0 months |
3-9 months |
Food Service
Establishment
|
1 month |
1 week |
2 weeks |
2 weeks |
Commmercial
(Retail, Shop, Bank)
|
3-6 months |
1 month |
2 months |
2 months |
Information adapted from U.S. EPA letter from Dr. Michael Berry, January 1989
