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首页> 外文期刊>Thermal engineering >Conditions for a Partial Summation of SO_2 and NO_2 Hazardous Effect in Gas Emission Regulations
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Conditions for a Partial Summation of SO_2 and NO_2 Hazardous Effect in Gas Emission Regulations

机译：气体排放法规中SO_2和NO_2有害影响部分求和的条件

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AbstractIn order to provide environmental safety, the concentrations of SO2and SO2in the surface layer of atmospheric air should not exceed corresponding one-time values accepted for maximum permissible concentrations (MPCs). The only document that provides a normative calculation of hazardous substance dispersion in the atmospheric air up to the present time is presented by regulations OND-86. It has established that, in taking into account the summation (unidirectionality) of hazardous action of substances (including SO2and NO2gases), the sum of their relative concentrations should not exceed unity. A novel standard GN 2.1.6.2326-08 stipulates that “nitrogen dioxide and sulfur dioxide have a partial summation of action; therefore the sum of their relative concentrations should not exceed 1.6.” This paper is devoted to analyzing the calculation of the summation of action for SO2and NO2gases and proving that the condition established in GN 2.1.6.2326-08 is not quite correct. According to the condition required by standard GN 2.1.6.2326-08, it turns out that, for some combinations of concentrations, the hazardous effect of gases is not added together, but one gas compensates an effect of the other, which contradicts the points of OND-86. For example, at SO2and NO2concentrations amounting to 0.6 and 0.04, respectively, the condition required by standard GN 2.1.6.2326-08 is satisfied, although the concentration of SO2exceeds a normatively fixed value of MPC = 0.5. The graphical analysis of a concentration region for SO2and NO2gases clearly shows the areas where the condition required by standard GN 2.1.6.2326-08 is satisfied, but the environmental safety according to OND-86 is not provided. Recommendations are proposed for the correction of requirements established by standard GN 2.1.6.2326-08.
机译：摘要 为了提供环境安全，大气层中SO 2 和SO 2 的浓度不应超过最大允许浓度（MPC）接受的相应的一次性值。法规OND-86提出了唯一的一份规范性地计算直到现在的大气中有害物质扩散的文件。已经确定，考虑到物质（包括SO 2 和NO 2 气体）的有害作用的总和（单向性），其相对浓度之和应为不超过团结。新的GN 2.1.6.2326-08标准规定：“二氧化氮和二氧化硫的作用部分累加；因此它们的相对浓度之和不得超过1.6。”本文致力于分析SO 2 和NO 2 气体的作用总和的计算，并证明GN 2.1.6.2326-08中建立的条件不完全正确。根据GN 2.1.6.2326-08标准要求的条件，事实证明，对于某些浓度的组合，气体的危险作用未加在一起，但一种气体补偿了另一种气体的作用，这与以下观点相矛盾。 OND-86。例如，当SO 2 和NO 2 的浓度分别为0.6和0.04时，满足标准GN 2.1.6.2326-08的要求，尽管SO 2 超出了MPC的标准固定值= 0.5。对SO 2 和NO 2 气体的浓度区域的图形分析清楚地显示了满足标准GN 2.1.6.2326-08要求的条件但环境符合要求的区域未提供根据OND-86的安全性。针对GN 2.1.6.2326-08标准建立的要求提出了建议。

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