Three different techniques for reducing exposure to microorganisms were tested during remediation of moldy buildings, concentrations of spores (fungi and actinomycetes) were determined by filter sampling before, during, and after remediation. The local exhaust method used for asbestos dismantling was the most effective control method. In the construction zone, concentrations of microorganisms were 4-25 times higher during remediation than before it. In the adjacent area no increase in concentrations was seen. When the construction zone was placed under negative pressure with a fan and isolated with a plastic barrier, concentrations of microorganisms were about 100 times higher there during remediation work. Nevertheless, levels remained low in the adjacent area. The use of a portable exhaust fan with a side-draft hood decreased concentrations of fungi to one-tenth compared with demolition without the control technology. Furthermore, this method prevented the migration of fungal spores from the construction zone to the adjacent area, although it was less effective in prevention of actinomycete spore migration. it also decreased the levels of microorganisms in the construction zone below the preconstruction level within 2 hours. This study showed that levels of airborne microorganisms, including from the working area to adjacent area, can be reduced with commonly used dust control methods during demolition work. However, microorganism levels in the construction zone remained elevated. Therefore, personal protection of construction workers is needed even with control techniques.

• fungi: exposure investigation
• fungi: remediation, treatment, prevention
• renovation, repair, maintenance

1. The relationship between measured moisture conditions and fungal concentrations in water-damaged building materials  

1. Aerodynamic diameters and respiratory deposition estimates of viable fungal particles in mold problem dwellings
2. Aerodynamic versus physical size of spores: measurement and implication for respiratory deposition
3. Aerosol characteristics of airborne actinomycetes and fungi
4. Bioaerosol collection by a new electrostatic precipitator
5. Characteristics of airborne actinomycete spores
6. Collection of airborne microorganisms by a new electrostatic precipitator
7. Collection of airborne spores by circular single-stage impactors with small jet-to-plate distance
8. Collection of bioaerosol particles by impaction: effect of fungal spore agglomeration and bounce
9. Collection of fungal spores on air filters and spore reentrainment from filters into air
10. Comparison of concentrations and size distributions of fungal spores in buildings with and without mould problems
11. Development and evaluation of aerosol generators for biological materials
12. Effect of building frame and moisture damage on microbiological indoor air quality in school buildings
13. Effect of indoor sources on fungal spore concentrations and size distributions
14. Effect of relative humidity on the aerodynamic diameter and respiratory deposition of fungal spores
15. Evaluation of a new personal sampler for enumerating airborne spores
16. Everyday activities and variation of fungal spore concentrations in indoor air
17. Field Testing of New Aerosol Sampling Method With a Porous Curved Surface as Inlet
18. Fungal fragments as indoor air biocontaminants
19. Fungal spore source strength tester: laboratory evaluation of a new concept
20. Long-term sampling of airbome bacteria and fungi into a non-evaporating liquid
21. Performance of Air-O-Cell, Burkard, and Button samplers for total enumeration of airborne spores
22. Personal exposures and microenvironmental concentrations of particles and bioaerosols
23. Release of Streptomyces albus propagules from contaminated surfaces
24. Size distributions of airborne microbes in moisture-damaged and reference school buildings of two construction types
25. Techniques for dispersion of microorganisms into air
26. Total and culturable airborne bacteria and fungi in arid region flood-damaged residences
27. Viable fungal spores as indoor aerosols  

1. An approach to management of critical indoor air problems in school buildings
2. Analysis of moisture findings in the interior spaces of Finnish housing stock
3. Comparison of concentrations and size distributions of fungal spores in buildings with and without mould problems
4. Comparison of two-level and three-level classifications of moisture-damaged dwellings in relation to health effects
5. Effect of building frame and moisture damage on microbiological indoor air quality in school buildings
6. Effect of growth medium on potential of Streptomyces anulatus spores to induce inflammatory responses and cytotoxicity in RAW264.7 macrophages
7. Effect of indoor sources on fungal spore concentrations and size distributions
8. Effect of liner and core materials of plasterboard on microbial growth, spore-induced inflammatory responses, and cytotoxicity in macrophages
9. Everyday activities and variation of fungal spore concentrations in indoor air
10. Fungal spores as such do not cause nasal inflammation in mold exposure
11. Fungi and actinobacteria in moisture-damaged building materials - concentrations and diversity
12. Indoor air microbes and respiratory symptoms of children in moisture damaged and reference schools
13. Induction of Cytotoxicity and Production of Inflammatory Mediators in RAW264.7 Macrophages by Spores Grown on Six Different Plasterboards
14. Inlet sampling efficiency of bioaerosol samplers
15. Knowledge-based and statistically modeled relationships between residential moisture damage and occupant reported health symptoms
16. Microbes and moisture content of materials from damaged building
17. Moisture, mold and health in apartment homes
18. Performance of bioaerosol samplers: collection characteristics and sampler design considerations
19. Personal exposures and microenvironmental concentrations of particles and bioaerosols
20. Size distributions of airborne microbes in moisture-damaged and reference school buildings of two construction types
21. Skin-prick test findings in students from moisture- and mould-damaged schools: A 3-year follow-up study
22. Temporal and spatial variation of fungal concentrations in indoor air
23. The relationship between moisture or mould observations in houses and the state of health of their occupants
24. Validity of detection of microbial growth in buildings by trained dogs  

1. An approach to management of critical indoor air problems in school buildings
2. Analysis of moisture findings in the interior spaces of Finnish housing stock
3. Characteristics of moisture damage in houses and their association with self-reported symptoms of the occupants
4. Comparison of two-level and three-level classifications of moisture-damaged dwellings in relation to health effects
5. Effect of building frame and moisture damage on microbiological indoor air quality in school buildings
6. Health effects of indoor-air microorganisms
7. Indoor air microbes and respiratory symptoms of children in moisture damaged and reference schools
8. Knowledge-based and statistically modeled relationships between residential moisture damage and occupant reported health symptoms
9. Moisture damage in schools - symptoms and indoor air microbes
10. Moisture, mold and health in apartment homes
11. Size distributions of airborne microbes in moisture-damaged and reference school buildings of two construction types
12. The relationship between moisture or mould observations in houses and the state of health of their occupants  

1. Effect of duct-cleaning detergents and disinfection substances on mould growth
2. Ergosterol content in various fungal species and biocontaminated building materials
3. Fungal microcolonies on indoor surfaces an explanation for the base-level fungal spore counts in indoor air
4. Moisture conditions and fungi in wood and wood based material samples collected from damp buildings
5. Significance of air humidity and air velocity for fungal spore release into the air