Hava Kalitesi Modellemesi

AIR QUALITY MODELING

Calculation of Air Pollution Contribution Value (HKKK) in the impact area of existing and new facilities, using dispersion modelling, measurement of air quality in the area of impact of the facility and determination of measurement methods are made according to the following principles:

Hourly mass flow rates of emissions to the atmosphere from the enterprises; It is determined by measuring from the chimneys for existing facilities, and by using emission factors for non-chimney sources and new facilities.
If the hourly mass flow (kg/hour) values exceed the values given in Table 2.1, the Air Pollution Contribution Value (HKD) of the emissions in the plant impact area is calculated hourly if possible, otherwise daily, monthly and yearly._d04a07d8-9cd1-3239-9149- 20813d6c673b_

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Air quality measurements are made continuously for one month by establishing at least two stations, one station in each study area, in different study areas where the monthly calculated Air Pollution Contribution Value (HKKK) for the existing facility is the highest. In regions where the pollution changes and increases depending on the months, the competent authority determines the measurement time.

“Air Pollution Contribution Values” are calculated using the AERMOD Program developed by the US EPA in order to determine the effects of dust emissions on air quality and the atmospheric distribution profile of the process-related dust emissions in the facility's impact area. The AERMOD Program is internationally accepted, is used by many researchers, inspection and authority bodies around the world to predict the atmospheric distribution of gas and dust emissions, and the model is based on the constant Gaussian Distribution. With this model, many emission sources (point, area, line and volume) can be modeled simultaneously or separately.

In accordance with Annex-2 of the Regulation on Control of Industrial Air Pollution, Air Pollution Contribution Value (HKKK) in the impact area of existing and new facilities should be calculated using dispersion modeling and the air quality should be measured in the area of impact of the facility.