Outdoor/indoor air quality in primary schools in Lisbon: a preliminary study

AUTOR(ES)

Pegas, Priscilla Nascimento, Evtyugina, Margarita G., Alves, Célia A., Nunes, Teresa, Cerqueira, Mário, Franchi, Mariana, Pio, Casimiro, Almeida, Susana Marta, Freitas, Maria do Carmo

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2010

RESUMO

Simultaneous measurements of outdoor and indoor pollution were performed at three schools in Lisbon. Volatile organic compounds (VOCs), formaldehyde and NO2 were passively monitored over a two-week period. Bacterial and fungal colony-forming units and comfort parameters were also monitored at classrooms and playgrounds. The highest indoor levels of CO2 (2666 μg/m³), NO2 (40.3 μg/m³), VOCs (10.3 μg/m³), formaldehyde (1.03 μg/m³) and bioaerosols (1634 CFU/m³), and some indoor/outdoor ratios greater than unity, suggest that indoor sources and building conditions might have negative effects on air indoors. Increasing ventilation rates and use of low-emission materials would contribute towards improving indoor air quality.

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