1. ASSESSMENT OF HEAVY METALS CONTENT IN THE PROXIMITY OF A CONTAMINATED SITE FROM CLUJ-NAPOCA (ROMANIA). Authors: GEORGIANA GROSU, CARMEN ANDREEA ROBA, RAMONA BĂLC, MARIA LUCIA BIZĂU-CÂRSTEA.2. DETERMINATION OF PETROLEUM HYDROCARBONS CONTENT IN SOILS FROM SUPLACU DE BARCĂU, ROMANIA. Authors: LOREDANA MIHAELA ŞEUTE, DAN FLORIN COSTIN, CARMEN ANDREEA ROBA, MARIA LUCIA BIZĂU-CÂRSTEA.3. ENVIRONMENTAL ASSESSMENT OF NITROGEN COMPOUNDS IN THE SURROUNDINGS OF A FERTILIZERS INDUSTRIAL PLANT. Authors: MARIA LUCIA BIZĂU-CÂRSTEA, CARMEN ANDREEA ROBA, FLORIN ȘTEFAN CHIOREAN.