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da qi wei sheng wu li zi yu piao chen li zi de guan xi
Author(s): 
Pages: 35-39
Year: Issue:  2
Journal: Urban Environment & Urban Ecology

Keyword:  大气微生物粒子飘尘粒子粒子浓度粒度分布;
Abstract: 用ANDERSEN生物粒子采样器和光散射气溶胶粒子计数器,在北京西单对大气细菌、真菌和飘尘粒子的浓度、粒度分布及它们之间的关系进行了观测和研究。结果表明,大气细菌的粒度是负偏态分布,大气真菌是对数正态分布,飘尘是正偏态分布。大气细菌浓度与飘尘浓度的比值冬季大,为119538;夏季小,为24217;年平均比值为67517,>2.0μm的菌尘比值为1525387,2.0μm~8.2μm的菌尘比值为3318,>8.2μm的菌尘比值为394。大气真菌浓度与飘尘浓度的比值冬季大,为212770;夏季小,为65585;年平均比值为135344,<2.0μm的菌尘比值为952698,2.0μm~8.2μm的菌尘比值为5343,>8.2μm的菌尘比值为2632。
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