【摘要】 本文仔细考察了华北—山地采样点获得的大气气溶胶元素浓度随气象条件的变化规律和各元素浓度之间的相互关系;发现,气溶胶中由人为污染物形成的那些颗粒物元素的浓度(特别是硫)相当高,其数值与在高度工业化的美国东北部和西欧的工业城市的观测结果相当;颗粒物流的浓度的变化与局地天气条件的变化之间相关性很差,整个观测期间硫的浓度波动也不大,这与地壳灰尘元素的变化规律完全不同。这表明,气溶胶硫污染已经成为较大范围的区域性问题,城市污染可能已影响到广大农村和山区。更多还原

【Abstract】 Elemental concentration relationships of atmospheric aerosols in a rural area of north China are examined. It has been found that the concentrations of those elements due to man-made air pollutants, especially S, are high and are comparable with those often found in the heavily industrialized eastern U. S. and western Europe. The low degree of correlation between the variations of the concentration of particulate S and local weather conditions and the relatively smaller range of concentration variation, compared with elements typical of terrestrial dust, suggest that aerosol sulfur pollution has already become a large scale regional problem in north China.更多还原