摘要
为了了解垃圾填埋场空气微生物浓度的时空分布及变动规律,在北京市某垃圾卫生填埋场填埋区、渗滤液处理区、生活区分别选定监测点,利用安德森六级微生物采样器,对填埋场空气微生物进行了系统的定点取样和分析。结果表明,垃圾填埋场空气微生物浓度分布填埋区>渗滤液处理区>生活区。填埋区空气微生物浓度达到6000CFU·m-3以上,生活区约为3500CFU·m-3,填埋区空气微生物浓度显著高于生活区(P<0.05)。填埋区不同时段空气微生物浓度不相同,呈4—7月份9:00—11:00浓度低于15:00—16:00,而8、9月份以后9:00—11:00浓度高于15:00—16:00的趋势,但没有统计学差异(P>0.05)。2006年4月—2007年1月空气微生物总浓度变化曲线呈双峰型,两个高峰分别出现在5月和9—11月。填埋场环境温度对空气微生物浓度的影响大于湿度。
In order＇to determine the time-space distribution characteristics and the changes of airborne microbes＇ concentration in waste landfill sites, supervisory point was set at sanitary landfill area, leachate treatment area and living area in a waste sanitary landfill site in Beijing. Airborne microbes were collected by Andersen six stages sampler, and their concentration distribution and dynamics were studied systematically. The results showed that the concentration of airborne microbes was in sequence of sanitary landfill area〉leachate treatment area〉 living area. Airborne microbe＇s concentration in sanitary landfill area was over 6 000 CFU ·m^-3, while it was 3 500 CFU ·m^-3 in living area, which was statistically significant （P〈0.05）. There were also differences of airborne microbes＇ concentration in different sampling periods. It indicated a trend that the concentration was higher at 9 ： 00-11 ： 00 than at 15 ： 00-16 ： 00 from April to July, and it performed reverse trend from August or September, but there showed no statistical difference （P〉0.05）. Monthly change curve of the concentration showed double peak type, and the two peaks appeared at May and September to November. Air temperature had much move effect on the airborne microbes＇ concentration than humidity in municipal landfill sites.
出处
《农业环境科学学报》
CAS
CSCD
北大核心
2009年第6期1332-1336,共5页
Journal of Agro-Environment Science
基金
国家自然科学基金(30670397)
关键词
垃圾填埋场
空气微生物
时间分布
空间分布
landfill site
airborne microbes
temporal distribution
spatial distribution
