However, the concordance for mould Microbial pollution is a key element of indoor air pollution. We found that the mean internal moisture excess of low-income households in Korea was 4.69 g/m 3 higher than those of prior studies. out of circulating air patterns). The World Health Organization has indicated that 10,000 ng house dust mite antigen per gram house dust can elicit an asthma attack in IgE-sensitized patients with asthma bronchiale. Skin-prick tests were performed with extracts of common aeroallergens and a respiratory questionnaire was completed for each child. Outcomes assessed were low birthweight (< 2500g), preterm birth (< 37 weeks), and small-for-gestational-age (< 10th percentile for gestational age). In the first testing season, 3,676 students returned questionnaires. Damp-proofing rods are usually supplied in 180mm lengths suitable for inserting into a 9-inch thick wall. J.C.Sharma, Your email address will not be published. Half of the patients had a type I allergy to house dust mite antigen using prick tests. The results of the study underline the importance of thorough moisture performance assessments to ensure that all point-sized moisture and mould damage is detected. "[52] The MOAT No 39 test[53] employed by the British Board of Agrément (BBA) in the UK is dismissed as "quite a clever test idea but in the author's opinion not actually replicating a real wall. ... sick building syndrome) and affect work productivity (WHO 2009). There is a strong need for more multidisciplinary studies including expertise from all relevant areas. In the univariate analyses, indoor humidity, 24 h maximum temperature, number of residents and a combination of floor covering and cleaning methods appeared to have a significant effect on allergen levels. Nonaerated areas were predominantly found in juxtadiaphragmatic regions. questionnaire studies differ depending on distribution method and whether the survey is anonymous Au cours de ce travail de thèse, elle a été utilisée pour caractériser d'autres situations à risque : quantifier la présence de Thermoactinomyces vulgaris dans les aérosols des stations de compostages, détecter la présence d'Aspergillus fumigatus dans des environnements pouvant recevoir des patients immunodéprimés, mettre en évidence la présence d'ADN d' Aspergillus fumigatus ou de mucorales dans le sérum de patients immunodéprimés. Rising damp is a phenomenon that is fully predicted by the laws of physics,[38] has been researched on a worldwide scale,[24] and has been documented since Roman times. However, the TVOC concept has been questioned for a number of reasons, including the facts that it is an ambiguous concept, that individual VOCs making up the whole can be expected to give rise to different effects in people and that researchers have been using different definitions and interpretations of TVOC. 1. These have a minimum porosity of 40% of total volume. Events such as flooding in Houston, USA; landslides in Free Town, Sierra Leone; and water shortages in La Paz, Bolivia and Cape Town in South Africa demonstrate that it is increasingly important that climate change is understood and addressed in built environments to ensure that they become more resilient.

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