TY - T1 - Rooftop vegetables and urban contamination : trace elements and polycyclic aromatic hydrocarbons in crops from Helsinki rooftops SN - / UR - URN:NBN:fi-fe20180115174; http://hdl.handle.net/10138/136371 T3 - A1 - Gelman, Valeria A2 - PB - Helsingfors universitet Y1 - 2014 LA - eng AB - The increased rates of population growth and urbanization worldwide raises the question of food security and self-reliance in cities. In view of this situation, in recent years there has been a re-emergence of urban agriculture in its traditional form and in new variations, such as on urban rooftops. A number of rooftop urban farms exist in the world; however, very few studies have been done to establish the quality of crops they produce, specifically concerning the concentrations of contaminant... VO - IS - SP - OP - KW - polycyclic aromatic hydrocarbons; trace elements; heavy metals; rooftop agriculture; urban agriculture; urban contamination; Urban Ecology N1 - PP - ER -