| Subject | English | Arabic |
| environ. | biological waste gas purification Processes for removing impurities from waste gas based on the employing of microorganisms | التنقية الحيوية للمخلفات الغازية |
| environ. | denitrification of waste gas Current methods for controlling NOx emissions in motor vehicles include retardation of spark timing, increasing the air/fuel ratio, injecting water into the cylinders, decreasing the compression ratio, and recirculating exhaust gas. For stationary sources, one abatement method is to use a lower NOx producing fuel or to modify the combustion process by injecting steam into the combustion chamber | إزالة نترتة المخلفات الغازية |
| environ. | industrial waste gas Waste gases resulting from manufacturing and other industrial processes which may be treated and released, treated and reused or released without treatment | مخلفات غازية صناعية |
| environ. | waste gas Any unusable aeriform fluid, or suspension of fine particles in air, given off by a manufacturing process or the burning of a substance in a enclosed area | غاز مستهلك |
| environ. | waste gas dispersion The process of breaking up and producing a diffuse distribution of the unusable aeriform fluid or suspension of fine particles in air resulting from a manufacturing process or the burning of a substance in an enclosed area | انتشار المخلفات الغازية |
| environ. | waste gas emission The direct or indirect discharge of exhaust gas into the atmosphere | انبعاثات الغاز المستهلك |
| environ. | waste gas examination Qualitative and quantitative analysis of exhaust gases emitted from vehicles, industrial plants, etc. in order to asses their composition | فحص الغاز المستهلك |
| environ. | waste gas reduction Reduction of the quantity of gaseous emissions in the atmosphere, from motorvehicles, industrial and heating plants, etc. by the adoption of clean technologies, the effectiveness of process operations, the improvement of fuel quality and the installment of chimney stacks high enough to ensure the dispersion of gases | تقليص الغاز المستهلك |
