A-332 : Groundwater quality in Serbia , Nitrate-Nitrogen     Emira Maljević 1 , Radojka Bugarski 2 Republic Hydrometeorological Service of Serbia Belgrade 1 , Novi Sad 2 , Serbia and Montenegro e.maljevic@hidmet.sr.gov.yu     Abstract   Groundwater quality can be affected by both natural and anthropogenic activities. In aquifers unaffected by human activity, the […]