Sea transportation is considered as an environmentally friendly transportation option compared to other freight transportation such as airway, rail and road transport. The majority of freight transportation is completed by the sea. Moreover, emissions from ships are increasing due to the increase in trade volume and sea transportation worldwide. Due to this increase, health of people living in coastal cities is affected adversely. In this study, real-time air quality measurements of PM2.5, PM10, SO2, CO, NO and NO2 emissions are performed for three months in the Port of Ambarli located in Marmara region that has intense sea trade. The daily average values of real-time emission data measurement are shown for June, July and August 2017. Real-time measurements are received from Air Quality Monitoring Station in Avcilar district of Istanbul for the same period and same air quality measurement device. These PM2.5, PM10, SO2, CO, NO and NO2 emission values are compared with the limit values of air quality in Europe and Turkey. As a result, PM2.5, PM10, SO2, CO, NO and NO2 measurements are under air quality limit value set by Europe and Turkey for the Port of Ambarli based on values obtained from Avcilar and Kadikoy.