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| 上海市郊春季PM10 污染的观测研究 |
| ObservationalStudy of PM 10 in the Suburb of ShanghaiDuring Spring |
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| DOI： |
| 中文关键词: PM 10 气象参数 上海市 轨迹模型 HYSPLIT |
| 英文关键词: PM 10 Meteorologicalparameter Shanghai Trajectory model HYSPLIT |
| 基金项目: |
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| 中文摘要: |
| 利用上海市郊金山环境监测站 2007 年春季的逐时PM 10 和气象参数的观测数据 , 分析了 PM 10 日平均质量浓度和最大质量浓度的时间变化规律 , 小时平均质量浓度的分布规律 , 气象条件对 PM 10 质量浓度的影响 , 并利用 HYSPLIT 轨迹模型结合气象观测数据对一次最严重的 PM 10 污染过程进行了分析。 结果表明 ,PM 10 在春季有 11 日出现超标 , 污染比较严重 ; 风和降雨对 PM 10 质量浓度均有较为明显的影响 ;4 月 2 日监测点 PM 10 日平均和最高质量浓 |
| 英文摘要: |
| Based on the PM 10 valuesand meteorologicaldata observed in the suburb of Shanghaiduring spring 2007,thetemporalvariation ofdaily averaged and maximum PM 10 concentrationsand distribution of the hourly averaged PM 10 valueswereanalyzed, aswellasthe meteorologicaleffectson PM 10 . A severe PM 10 episodecase wasstudied using HYSPLIT trajectorymodelcombined with surface meteorologicaldata. There were11 days with PM 10 daily averaged concentrationsexceeding the standard levelobserved, indicating seriouspollution in spring. W ind and precipitation both have significantinfluence on PM 10 . Backward trajectory and meteorological analysisshow that, due to theinfluence ofcold air mass moving southward with dust, the daily averaged and maximum PM 10 concentrationsreached 0.78 mg/m 3 and 1.0 mg/m 3 respectivelyin the observationalsite, both werethe highestvaluesin the year. |
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