Municipal wastewater treatment plants (WTP) are potential sources of offensive odors that can create annoyance in the communities. Therefore, odors have been rated as the primary concern of the public relative to the implementation of wastewater treatment facilities. In this study, dispersion modeling and air quality measurements were used to quantify the potential odor impact around a Wastewater Treatment Plant in İzmir. AERMOD atmospheric dispersion model was used to predict odor levels in OU/m³ around the treatment plant. Odor measurement results of the wastewater treatment plant units that are considered as area odor sources were used for odor modeling. Air quality measurements of H₂S and NH₃, which are two main odorous compounds emitted from wastewater treatment plants, were also conducted by using passive sampling methodology in the surroundings of the plant to evaluate the odor impact of the plant. Both odor emission and air quality measurements were conducted in the period of July–august 2018 for evaluation of odor impact, and consequent application of dispersion model. The air quality measurements of the pollutants which exceed the odor threshold values do not create annoying odor impact on residential areas. The dispersion modeling demonstrates that the odor concentrations exceeding 10 OU/m³ concentration levels that can be measured olfactometrically also do not create an odor impact on local residents.

市政废水处理厂（WTP）是潜在的令人讨厌的气味来源，可在社区中造成烦恼。因此，相对于废水处理设施的实施，气味一直是公众最关注的问题。在这项研究中，使用扩散模型和空气质量测量来量化伊兹密尔污水处理厂周围潜在的气味影响。使用AERMOD大气扩散模型来预测处理厂周围OU / m ^3的气味水平。废水处理厂单元的臭味测量结果被视为区域气味源，用于气味建模。H ₂ S和NH _3的空气质量测量废水处理厂排放的两种主要臭味化合物，也是通过在工厂周围使用被动采样方法进行的，以评估工厂的气味影响。在2018年7月至2018年8月期间进行了气味排放和空气质量测量，以评估气味影响并随后应用分散模型。超过气味阈值的污染物的空气质量测量不会对居住区产生讨厌的气味影响。分散模型表明，可以通过嗅觉法测量的超过10 OU / m ³浓度水平的气味浓度也不会对当地居民产生气味影响。