engleski

INDOOR AND OUTDOOR AIR CONCENTRATIONS OF NITROGEN DIOXIDE IN OSIJEK SCHOOLS

Children spent most of their times indoors on the daily basis. After their homes, second most important place where children reside are school. Parma Declaration was signed in 2010 with clear goals to protect children's health from environmental hazards. The role of Regional Priority Goal 3 is in preventing disease through improved outdoor and indoor air quality. In 2012 and 2014 the measurement of NO2 was carried out in 4 schools in Osijek Baranja County during winter season. Researches included 3 classrooms and 1 outdoor point per each school. Air samples were sampled by circular diffusive samplers. The collected NO2 was extracted using water. Nitrite was detected and analyzed by spectrophotometry. The results indicated indoor and outdoor sources of air pollution. Results showed the value of NO2 with 95% confidence interval. The interval in the classroom was 7.8-11.02 µg/m3 and 12.18-15.56 µg/m3 in front of schools.

indoor air quality; schools; nitrogen dioxide

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