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

Polychlorinated biphenyls (PCBs) and terphenyls (PCTs) in fish of Slovenia

Široka upotrebljivost postojanih polikloriranih bifenila (PCB) i terfenila (PCT) u industriji uzrok je njihove prisutnosti u ribama prije svega rijeka industrijskog porječja i u morskim ribama sjevernog Jadrana. U svim uzorcima riba našli smo PCB i PCT. PCT je bio prisutan u manjoj mjeri.With a destructive clean-up of fish extract before the gas liquid chromatographic (EC detector) determination PCB and PCT residues were analysed in samples of fresh and sea water fish from the Slovenian region. The results of a quantitative analysis of PCTs were confirmed by perchlorination to orthometa and para-tetradecachloroterphenyls. In determination of PCB and PCT residues Aroclor 1254 -1260 (1 + 1) and Aroclor 5460 were used as standards respectively. PCBs were found in all samples in the range of 0.75 to 33.3 ppm on fat. The range of PCTs was 0.05-0.90 ppm and after perchlorination 0.08 - 0.52 ppm on fat. The highest concentrations of PCB-PCT residues in fresh water fish occurred in rivers running through industrialized areas