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生态学杂志 ›› 2011, Vol. 30 ›› Issue (05): 1018-1022.

• 汞的生物地球化学专辑 • 上一篇    下一篇

贵阳市大气黑碳污染特征

仇广乐1,刘娜1,冯新斌1**,LANDIS Matthew2,商立海1,付学吾1   

  1. 1中国科学院地球化学研究所环境地球化学国家重点实验室, 贵阳 550002|2US EPA, Office of Research and Development, Research Triangle Park, NC 27709, USA
  • 出版日期:2011-05-08 发布日期:2011-05-08

Pollution characteristics of atmospheric black carbon in Guiyang City, Southwest China.

QIU Guang-le1, LIU Na1, FENG Xin-bin1**, LANDIS Matthew2, SHANG Li-hai1, FU Xue-wu1   

  1. 1State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China|2US EPA, Office of Research and Development, Research Triangle Park, NC 27709, USA
  • Online:2011-05-08 Published:2011-05-08

摘要: 利用连续颗粒物采样仪(URG Model 2000-01J)和黑碳仪(Aethalometer)对贵阳市城区2008年9—11月大气黑碳浓度进行了连续观测,结果表明,贵阳市城区秋冬季大气24 h黑碳浓度变化范围为1.6~12 μg·m-3,平均值为4.1 μg·m-3;12 h黑碳浓度观测值主要分布在2~5 μg·m-3,白昼黑碳浓度变化范围介于1.9~9.2 μg·m-3,平均值3.9 μg·m-3,夜间黑碳浓度变化范围0.48~15 μg·m-3,平均值4.3 μg·m-3;黑碳浓度与大气PM2.5浓度变化一致,呈正相关关系(r=0.84, P<0.0001, n=178),大气黑碳浓度的变化趋势还明显受相对湿度、温度和风速的影响。

关键词: 基因工程微生物, 生态学, 分子生物学

Abstract: By using URG Model 2000-01J and Aethalometer, the atmospheric black carbon concentration in Guiyang City was continuously detected from September to November, 2008. The 24 h atmospheric black carbon concentration during the detection period was 1.6-12 μg·m-3, with a mean value of 4.1 μg·m-3. The 12 h atmospheric black carbon concentration was mainly in the range of 2-5 μg·m-3, its daytime variation range was 1.9-9.2 μg·m-3, with a mean value of 3.9 μg·m-3, and its nighttime variation range was 0.48-15 μg·m-3, with a mean value of 4.3 μg·m-3. The atmospheric black carbon concentration had the same variation trend as atmospheric PM2.5 concentration, and there existed a positive correlation (r=0.84, P<0.0001, n=178) between them. The variation trend of the atmospheric black carbon concentration was also affected by the relative humidity, temperature, and wind speed.

Key words: Genetically engineered microorganism (GEM), Ecology, Molecular biology