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现场观测了日光辐射对大气细菌粒子的影响。结果表明,一天内大气细菌粒子浓度与日光辐射强度呈反比;大气细菌粒数中值直径与日光辐射强度呈正比。随日光辐射强度的增大,<8.2μm的大气细菌粒子浓度下降的速度比>8.2μm的细菌粒子为快。
The effect of solar radiation on atmospheric bacteria particles was observed on site. The results showed that the concentration of atmospheric bacteria in one day was inversely proportional to the intensity of solar radiation; the median diameter of atmospheric bacteria was proportional to the intensity of solar radiation. With the increase of solar radiation intensity, the atmospheric bacteria particle concentration of <8.2μm decreased faster than that of bacterial particles> 8.2μm.