between different classrooms and other environments inside the
same nursery and a limited analysis to the coarser PM fractions
were the major limitations of this study.
In Portugal, as far as it is known there are no studies focussing
on PM in nurseries’ indoor air; there are only few studies focussing
on the indoor air of primary schools (Almeida et al., 2011; Pegas
et al., 2012).
To reduce the above referred lacks, the main objectives of this
study were: i) to evaluate indoor concentrations of particulate
matter (PM1, PM2.5, PM10 and PMTotal) on different indoor microenvironments
in urban nurseries in Porto city; and ii) to analyse
those concentrations according to guidelines and references for
indoor air quality and children’s health.