油田污油池VOCs源强核算

以油田两处污油池为研究对象开展VOCs浓度监测,结合社会科学统计软件包（Statistical Package for the Social Science,SPSS）的Pearson相关分析对监测数据进行了分析;并利用地面浓度反推法核算污油池的VOCs排放源强,将结果与排放系数法计算值进行对比;最后对下风向不同距离采样线监测数据反推源强逐渐减小的原因进行了讨论。结果表明：污油池B各采样线监测数据间的相关性好,反推出的源强较为准确,VOCs年排放量为17.6 t/a;而污油池A监测数据间的相关性不佳,可能是由于其他无组织排放源相距较近影响所致,不适合直接应用地面浓度反推法计算其源强,需要结合其他排放源的情况进行修正。

Source strength accounting of VOCs from sewage pool in oil field

Two sewage pools in oil field were selected as the research object for VOCs concentration monitoring,and the monitoring data were analyzed by Pearson correlation analysis with Statistical Package for the Social Science （SPSS）. The VOCs emission source strength were calculated by ground concentration reverse-calculation method and the results were compared with the calculated values by emission factor method. Finally,the reasons for the gradual reduction of the source strength from the sampling lines at different distances in the downwind direction were analyzed. The results show that the correlation between the monitoring data of each sampling line of the sewage pool B is good,the data of source strength by the inverse method are more accurate,and the annual VOCs emission is 17.6 t/a;however,the correlation between the monitoring data of the sewage pool A is not good,which may be due to the impact of close proximity of other unorganized emission sources,so source strength is not suitable to be calculated by the ground concentration reverse-calculation method directly and needs to be corrected in combination with the situation of other emission sources.