Levels of Hydrogen Sulphide, Ammonia, and Mercaptans in the Air of the Central Wastewater Treatment Plant Zagreb Area

摘要

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 H2S, NH3, and R?SH were collected. Measured concentrations of gaseous pollutants showed statistically significant seasonal variations.