The Role of Aerosol in Climate Change,the Environment,and Human Health

Aerosol is an important component of the atmosphere,and its source,composition,distribution,and effects are highly complicated.Governments and scientists have given much attention to aerosol problems,and it has become a hot topic due to the important role it plays in climate change and the Earth's environment.In this paper,1) the importance of aerosol in climate change,the atmospheric environment,and human health is summarized;2) the recent serious problems of aerosol pollution and the shortage of current aerosol research in China are pointed out;and 3) the necessity to enhance aerosol research in China is emphasized.

浙江地区复合绝缘子与标准型盘形悬式绝缘子自然积污特性差异及其环境影响因素

为获得复合绝缘子与标准型盘形悬式绝缘子的积污差异,并得到环境因素对上述绝缘子积污差异的影响,开展了复合绝缘子、标准型绝缘子同塔积污对比测试,并利用测试杆塔附近的大气环境监测站点、气象监测站点获得了所有测点积污期间的大气环境成分与气象参数,利用多元回归方法,首次实现了基于大气环境成分与气象参数的复合绝缘子、标准型绝缘子积污比值计算。结果表明:浙江地区复合绝缘子整体等值盐密、等值灰密分别为标准型绝缘子的0. 8、1. 27倍,复合绝缘子积污不均匀程度显著小于标准型绝缘子;利用大气环境、气象参数所建多元回归模型可以描述复合绝缘子与标准型绝缘子等值盐密、等值灰密的差异,基于建立的多元回归模型判断,干旱、大气污染严重区域,复合绝缘子积污趋向于比标准型绝缘子更严重。