Klorirani ugljikovodici (pesticidi i poliklorobifenili - PCB) u atmosferi grada Ljubljane

Airborne particulate matter was continuously sampled from the atmosphere of the residential town area of Ljubljana for 45 days and trapped on a filter. Some chlorinated hydrocarbons (pesticides and PCBs) were determined by GLC after solvent extraction followed by concentration and clean-up of the oily residue. The PCB concentration in the particulate matter in the atmosphere was 1.3 ng/m3 and the concentration levels of the total DDT. dieldrin, alpha-, gamma-, delta-HCH and heptachlor epoxide were 0.86, 0.03, 0.08, 0.05, 0.03 and 0.01 ng/m3 respectively. Such a level of chlorinated hydrocarbons in the atmosphere is considered of little or no consequence to public health.U soliteru »Iskra« u Ljubljani neprekidno smo 45 dana usisavali vanjski zrak kroz filter. Filter je zadržao čestice aerosola. U tom smo aerosolu tehnikom plinske kromatografije identificirali neke stabilne organskofosforne spojeve (pesticide i poliklorirane bifenile). Našli smo da je koncentracija PCB 1,3 ng/m3, a ukupnog DDT (p,p\u27-DDE, p,p\u27-DDE, p,p\u27-DDD i o,p\u27-DDT), dieldrina, alfa-, gama-, delta-HCH i heptaklor epoksida 0,86; 0,03; 0,05; 0,03; 0,01 ng/m3. Količina organoklornih spojeva u zraku ne prelazi količinu koja bi znatno utjecala na ukupni dnevni unos u čovjeka