TAILIEUCHUNG - Impact of indoor air pollution on health, comfort and productivity of the occupants

If possible, allow the solution to mix at room temperature for 24 hours. The solubility of the compound will dictate how much goes into solution, and for some of the compounds we have tested (., nonylphenol) very little will dissolve. Once the concentrated solution is prepared, students should prepare the following dilutions (1:2, 1:10, and 1:100). Spring water will serve as the negative control (., it should have no effect on sponge growth). We have found that students can always use practice making serial dilutions, and this activity helps them visualize what dilutions accomplish. We have. | ELSEVIER Aerobiologia 12 1996 121-127 Aerobiologia bttmtiOMl Journal of Aerobiology Impact of indoor air pollution on health comfort and productivity of the occupants Jagjit Singh Associate Director Oscar Faber Applied Research Marlborough House Upper Marlborough Road St Albans All 3UT Herts UK Received 4 July 1995 revised 24 November 1995 accepted 11 March 1996 Abstract In this special report the possible causes of indoor air pollution and its impact on the health comfort and productivity of the building occupant are discussed. The causes and symptoms of sick building syndrome allergy and environmental illnesses and building related illnesses are discussed in the context of building environments. The remediation and prevention measures examine the solution to the problems caused by indoor air pollution in buildings Keywords Indoor air quality Sick building syndrome Building related illness Health Comfort and productivity in buildings Indoor air pollution 1. Introduction An average North American or European man spends 80 to 90 per cent of his time indoors and the air he breathes is mostly indoor air Berglund et al. 1988 . The indoor air as well as the temperature light and sound conditions in our dwellings offices schools and other premises is of decisive importance for the health comfort morale productivity and well-being of the occupants Curwell et al. 1990 Singh 1996 . Health and comfort problems associated with indoor air have nevertheless come to constitute a major problem in recent years Singh and Walker 1996 . Sick building problem seems to coincide with the introduction of energy conservation measures following the oil crisis of the early 1970 s. Among the influencing factors are chemical pollution ozone formaldehyde volatile organic compounds etc inert fibres biological fungi viruses bacteria mites algae and other allergens radon and electromagnetic forces. Corresponding author. Tel. 44 181 7845784 Fax 44 181 7845700. The allergic substances can be .

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