Explanation:
Several earlier studies have shown the presence of more dust and allergens in carpets compared with non-carpeted floors. At the same time, adverse effects of carpeted floors on perceived indoor air quality as well as worsening of symptoms in individuals with asthma and allergies were reported. Avoiding extensive carpet use in offices, schools, kindergartens and bedrooms has therefore been recommended by several health authorities. More recently, carpet producers have argued that former assessments were obsolete and that modern rugs are unproblematic, even for those with asthma and allergies. To investigate whether the recommendation to be cautious with the use of carpets is still valid, or whether there are new data supporting that carpet flooring do not present a problem for indoor air quality and health, we have reviewed the literature on this matter. We have not found updated peer reviewed evidence that carpeted floor is unproblematic for the indoor environment. On the contrary, also more recent data support that carpets may act as a repository for pollutants which may become resuspended upon activity in the carpeted area. Also, the use of carpets is still linked to perception of reduced indoor air quality as well as adverse health effects as previously reported. To our knowledge, there are no publications that report on deposition of pollutants and adverse health outcomes associated with modern rugs. However, due to the three-dimensional structure of carpets, any carpet will to some extent act like a sink. Thus, continued caution should still be exercised when considering the use of wall-to-wall carpeted floors in schools, kindergartens and offices, as well as in children’s bedrooms unless special needs indicate that carpets are preferable.
Keywords: carpets, indoor air quality, health impact
Answer:
You can give the biography of Usain Bolt . He is a famous athlete and has a world record of 10m/s speed .
Answer:
See Below
Explanation:
The society in which the protagonist of The Pedestrian resides can best be categorized as dystopian totalitarian. Bradbury, whose later novel Fahrenheit 451 provided one of literature's more compelling depictions of a futuristic dystopian society, in The Pedestrian provides hints of what was to come.
Answer:
How do crickets affect the environment?
Field crickets are important agents in the decomposer communities of many ecosystems. They consume large quantities of often highly resistant, cellulose-rich plant materials and produce fecal pellets that are easily decomposed by bacteria and fungi.
Explanation:
Hope this helps :)
