Industrial areas with heavy industry may cause annoyance for neighboring residential areas. Especially sources that emit low frequency noise can cause annoyance in residential areas several kilometers from the industry. At these distances the low frequency sound propagation is largely dependent on the meteorological conditions. Height dependent wind and temperature profiles result in a varying effective sound speed over altitude, causing upward or downward sound paths. Depending on the meteorological conditions this can have a significant effect on the acoustic transfer from source to receiver. This paper presents a method to estimate the acoustic immission caused by heavy industry. Acoustic data is collected by monitoring of an actual industrial area, over long distance and over a time period of multiple months. A meteorological acoustic transfer model combined with measurement based source emission estimations is used to estimate the immission of the industrial sources in a residential area. Transfer distances range from 2 up to 10 km. Together with the emission of the industrial sources also the acoustic immission is continuously measured by acoustic monitoring stations within the residential area. The calculated immission estimates are used to differentiate between the industrial related noise and all other sounds within the residential area. When considering possible annoyance due to the industry, the monitoring of other sounds is not relevant and should be excluded from the analysis. This differentiation is made by comparing the estimated immission with the measured sound level for the residential area. The method is an alternative for the audio classification methods of industrial or other sounds.