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华北地区典型机场清单建立及空气质量影响
The establishment of airports emission inventory and the air quality impactsfor typical airports in North China
基于利用AMDAR数据确定大气混合层高度进而对飞机不同工作状态下的时间进行修正的计算方法，核算了2017年华北地区6座典型机场大气污染物排放量.结果显示，6座机场NOx、CO、VOC、SO2与PM2.5的排放总量分别为21504.2，7074.8，1424.0，1283.6和323.2t.飞机源NOx、CO、VOC与SO2的排放量远高于机场内其他污染源，而对PM2.5的排放贡献相差较小.HC与CO的排放主要集中在滑行阶段，占比分别为90.6%与90.2%，而NOx、SO2与PM2.5的排放主要集中在爬升阶段，排放占比分别为58.9%、38.7%和43.5%.6座机场1月份污染物排放量较低，在8月份达到峰值.基于本研究建立的天津滨海国际机场大气污染物排放清单，利用WRF-CAMQ模型研究机场排放对周边区域PM2.5浓度的影响.结果表明机场区域小时最大贡献浓度为3.24μg/m3；距离机场5km处的年均贡献浓度与小时最大贡献浓度分别为0.08和2.84μg/m3.
The emissions of air pollutants from six typical airports in North China in 2017 were estimated using an improved method, which considered the mixing layer height calculated based on aircraft meteorological data relay (AMDAR) and improved the actual operation times of the aircraft under different modes. The total emissions of NOx, CO, VOC, SO2 and PM2.5 of the six airports were 21504.2, 7074.8, 1424.0, 1283.6 and 323.2t, respectively. The emissions of NOx, CO, VOC and SO2 from aircraft were much larger than the other emission sources in the airport, while the emission contributions of PM2.5 were similar. The HC and CO were mainly emitted during the taxi process, accounting for 90.6% and 90.2%, respectively. The NOx、SO2 and PM2.5 were mainly emitted during the climb process, accounting for 58.9%,38.7% and 43.5%, respectively. The emissions of six airports in January were relatively lower than that in other months, and the largest emissions were occurred in August. Based on the detailed emissions inventory of the airports developed in this study, a WRF-CMAQ modeling system was applied to investigate the impact of the Tianjin Binhai International Airport emissions on the PM2.5 concentration in the surrounding regions. The results indicated that the hourly maximum concentration contribution was 3.24μg/m3 in the airport area, The annual average and hourly maximum concentration contributions to the grids which were 5km away from the airport were 0.08 and 2.84μg/m3, respectively.
air quality / aircraft / emission inventory / typical airports in north China
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国家重点研发计划项目（2018YFC0213206）；大气重污染成因与治理攻关项目（DQGG0501，DQGG0509，DQGG020102）；北京市科技计划项目（Z181100005418017）
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