摘要
采用平皿沉降法,测定了深圳特区不同功能区37个监测点人群呼吸带内的大气细菌数和真菌数,结果表明,特区内不同功能区大气微生物的浓度各异,其中市区商业交通混杂区的大气细菌污染最重,其次是工业区和交通干线,文教区和居民区、旅游区大气细菌含量最低。绿化情况良好的文教区、居民区、果园的真菌含量高于工业区和交通干线。以大气细菌含量为指标评价了各测点的空气质量,参与评价的37个测点中,清洁点占56.8%,普通点占29.7%,属界限空气的测点占8.1%,5.4%的测点空气已出现轻度污染。大气细菌的日浓度变化规律为:早上(6:30)、晚上(18:30)较高,上午(10:30)、下午(14:30)较低。
After employing plate settling method to monitor the sum of bacteria and fungi at the man breathing zone within thirtyseven monitoring points at different function districts in Shenzhen, we obtained the following results, the density of the atmospheric microorganism is different in various function districts Among them, the atmospheric bacteria pollution is the most serious in the urban commerecetraffic mixed area, the region of industry and main traffic line ranks second, the density of bacteria is the lowest in civic districts, resident districts and tourism areaThe density of fungus in civic district and resident district with fine afforestation is higher than in industry districts and main traffic line In this paper, we use the density of atmospheric bacteria as assessment target to assess the air quality of each monitoring pointAmong the thirtyseven monitoring points, the purity points accounted for 568%, common points accounted 297%,confine air accounted for 81%,the points where air had been slight polluted accounted for 54% The daily changing rule of the bacteria amout shows:higher at 6:30, 18:30, and lower at 10:30, 14:30
出处
《中国环境监测》
CAS
CSCD
北大核心
2003年第2期23-26,共4页
Environmental Monitoring in China
关键词
大气细菌
真菌
功能区
atmospheric bacteria
fungi
function district