1 resultado para student engagement in schools
em Boston University Digital Common
Filtro por publicador
- JISC Information Environment Repository (1)
- Aberystwyth University Repository - Reino Unido (1)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
- Aquatic Commons (3)
- Archive of European Integration (1)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (3)
- Aston University Research Archive (17)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (13)
- Boston University Digital Common (1)
- Brock University, Canada (11)
- Bucknell University Digital Commons - Pensilvania - USA (4)
- Bulgarian Digital Mathematics Library at IMI-BAS (2)
- Cambridge University Engineering Department Publications Database (3)
- CentAUR: Central Archive University of Reading - UK (19)
- Coffee Science - Universidade Federal de Lavras (1)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (2)
- CORA - Cork Open Research Archive - University College Cork - Ireland (9)
- Dalarna University College Electronic Archive (6)
- Deakin Research Online - Australia (221)
- Digital Commons - Michigan Tech (1)
- Digital Commons @ DU | University of Denver Research (4)
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- DigitalCommons - The University of Maine Research (1)
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- DigitalCommons@University of Nebraska - Lincoln (4)
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- Duke University (3)
- Fachlicher Dokumentenserver Paedagogik/Erziehungswissenschaften (1)
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- Greenwich Academic Literature Archive - UK (4)
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- Helda - Digital Repository of University of Helsinki (3)
- Indian Institute of Science - Bangalore - Índia (2)
- Instituto Nacional de Saúde de Portugal (1)
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- QSpace: Queen's University - Canada (3)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (65)
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- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (2)
- Repositório Científico do Instituto Politécnico de Santarém - Portugal (1)
- Repositorio de la Universidad del Pacífico - PERU (1)
- Repositório digital da Fundação Getúlio Vargas - FGV (2)
- Repositório Digital da UNIVERSIDADE DA MADEIRA - Portugal (1)
- Repositório Institucional da Universidade de Aveiro - Portugal (1)
- Repositorio Institucional de la Universidad de La Laguna (1)
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- Research Open Access Repository of the University of East London. (2)
- Savoirs UdeS : plateforme de diffusion de la production intellectuelle de l’Université de Sherbrooke - Canada (3)
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- Universitat de Girona, Spain (1)
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- Université de Montréal, Canada (3)
- University of Canberra Research Repository - Australia (6)
- University of Connecticut - USA (3)
- University of Michigan (87)
- University of Queensland eSpace - Australia (25)
- University of Southampton, United Kingdom (5)
- University of Washington (3)
- WestminsterResearch - UK (4)
- Worcester Research and Publications - Worcester Research and Publications - UK (4)
Resumo:
An investigation of 24 buildings in the Greater Boston Area revealed that one-third (8 of 24) contained caulking materials with polychlorinated biphenyl (PCB) content exceeding 50 ppm by weight, which is the U.S. Environmental Protection Agency (U.S. EPA) specified limit above which this material is considered to be PCB bulk product waste. These buildings included schools and other public buildings. In a university building where similar levels of PCB were found in caulking material, PCB levels in indoor air ranged from 111 to 393 ng/m3; and in dust taken from the building ventilation system, < 1 ppm to 81 ppm. In this building, the U.S. EPA mandated requirements for the removal and disposal of the PCB bulk product waste as well as for confirmatory sampling to ensure that the interior and exterior of the building were decontaminated. Although U.S. EPA regulations under the Toxic Substances Control Act stipulate procedures by which PCB-contaminated materials must be handled and disposed, the regulations apparently do not require that materials such as caulking be tested to determine its PCB content. This limited investigation strongly suggests that were this testing done, many buildings would be found to contain high levels of PCBs in the building materials and potentially in the building environment. The presence of PCBs in schools is of particular concern given evidence suggesting that PCBs are developmental toxins.