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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Gaylarde, Christine Claire John, Vanderley Moacyr Loh, Kai Tavares, Roberta Gonçalves Taqueda, Maria Elena Santos Shirakawa, Márcia Aiko |
| Description | Country affiliation: Brazil Author Affiliation: Shirakawa MA ( Escola Politécnica da Universidade de São Paulo, Dept. de Engenharia Civil, Av. Prof. Almeida Prado, trav. 2, n.83, Edif. de Eng. Civil, Cid. Universitária, São Paulo SP, CEP 05508-900, Brazil. shirakaw@usp.br) |
| Abstract | The effect of Pigment Volume Content (PVC) on fungal growth on acrylic paint formulations with and without biocide, exposed to weathering in three different climatic regions in Brazil for four years, was studied. Latex paints, with PVC of 30%, 35% and 50%, were applied to autoclaved aerated concrete blocks pre-covered with acrylic sealer and acrylic plaster. They were exposed to equatorial, tropical and temperate climates in north, south-east, and south Brazil. Cladosporium was the most abundant fungal genus detected in the biofilm on the surfaces of all paint formulations at all sites after four years. Heaviest fungal colonization occurred in the tropical south-east and lightest in the temperate south of the country, but more phototrophs, principally cyanobacteria, were detected in the equatorial region. PVC and presence of biocides were shown to be of less importance than environmental conditions (irradiance, humidity and temperature) for biofilm formation and consequent discolouration. These results have important implications for testing of paint formulations. |
| ISSN | 00489697 |
| Issue Number | 23 |
| Volume Number | 408 |
| e-ISSN | 18791026 |
| Journal | Science of The Total Environment |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2010-11-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Climate Disinfectants Toxicity Fungi Drug Effects Fungicides, Industrial Paint Benzimidazoles Chemistry Biofilms Carbamates Cladosporium Growth & Development Environmental Monitoring Environmental Pollutants Classification Thiazoles Journal Article Research Support, Non-u.s. Gov't Discipline Environmental Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Waste Management and Disposal Pollution Environmental Engineering |
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