Na području Centralnog uređaja za pročišćavanje otpadnih voda grada Zagreba (CUPOVZ) od 2004. godine provode se ciljana mjerenja imisijskih koncentracija sumporovodika (H 2 S), amonijaka (NH 3 ) i ...ukupnih merkaptana (R−SH). U ovom radu prikazani su rezultati mjerenja provedenih tijekom 2017. godine na dvije mjerne postaje: Biologija-sjever i Biologija-jug, koje su smještene u krugu CUPOVZ-a. 24-satni uzorci H 2 S, NH 3 i R−SH sakupljani su po mjesec dana u svakom godišnjem dobu. Koncentracije H 2 S, NH 3 i R−SH na obje mjerne postaje pokazuju statistički značajnu sezonsku ovisnost (p < 0,05). Promatrajući sva mjerna razdoblja zajedno, pronađene su visoke pozitivne korelacije između svih onečišćujućih tvari i temperature te negativne s tlakom.
Since 2004, continuous measurements of hydrogen sulphide (H2S), ammonia (NH3), and mercaptan (R−SH) levels in air have been monitored in the area of the Central wastewater treatment plant Zagreb (CUPOVZ). At two measuring sites within the CUPOVZ area, Biology-north and Biology-south, for a month in every season in 2017, twenty-four hour samples of H 2 S, NH 3 , and R−SH were collected. Measured concentrations of gaseous pollutants showed statistically significant seasonal variations (p < 0.05) at both measuring stations. For the overall period, high positive correlations were found between all pollutants and temperature, and negative with pressure.
Polycyclic aromatic hydrocarbons (PAHs) were measured in the PM
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particle fraction collected at two different measuring sites in Zagreb, Croatia. In summer, concentrations of all PAHs at both sites ...were low. In winter, mass concentrations of all PAHs measured at southern site were much higher than those at north. Contents of all PAHs in the PM
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particle fraction were much lower in summer than that in the winter period. For example, average content of BaP in PM
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in summer was 2.26 ng/mg at site A and 4.17 ng/mg at site B, while in winter it was 34.72 and 46.69 ng/mg, respectively.
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