The present study was carried out to estimate the spatiotemporal variation of fungal bioaerosols, in and around a landfill site in Delhi. The sites were deep in the landfill to nearby residential areas. Fungal bioaerosol sampling was done with the help of Anderson six stage viable cascade impactor on monthly basis for one year from June 2015 to May 2016 at seven different sites in and around the landfill site. The entire sampling period was classified in five different seasons, viz., winter, spring, summer, monsoon and autumn, characteristic of Delhi. It was observed in monsoon season concentration was maximum at most of the sites while lowest during autumn season. Contrary to this, it was also found that concentrations of fine fraction of bioaerosols were significantly high even during autumn at sites deep in the landfill while low in the residential areas near landfill. As such no significant pattern was observed with the coarse fraction of fungal bioaerosols. Typical relations of fungal concentration with the meteorological parameters were also observed. It was noticed that concentration was directly related to temperature and wind speed while inversely related to humidity. Fine and coarse fractions of bioaerosols showed a very good and positive relationship with each other. Among the eight fungal genera identified from the samples of Okhla landfill sites, Penicillium, Aspergillus and Rhizopus were found in abundance at all the seven sites in all the five seasons. Alternaria and Fusarium were found in abundance in spring, summer and winter seasons whereas Cladosporium in autumn and winter. Aspergillussps was present in all the five seasons.

本研究旨在估算德里垃圾填埋场内及其周围真菌生物气溶胶的时空变化。这些场地位于垃圾填埋场的深处，到附近的居民区。从2015年6月至2016年5月，在安德森六级可行级联撞击器的帮助下，每月进行一次真菌生物气溶胶采样，为期一年，时间分别在垃圾填埋场内和周围的七个不同地点。整个采样期分为五个不同的季节，分别是德里的冬季，春季，夏季，季风和秋季。在季风季节观测到的浓度在大多数地点最高，而在秋季最低。与此相反，我们还发现，即使在秋天，在垃圾填埋场深处，细微颗粒生物气溶胶的浓度也很高，而在垃圾填埋场附近的居民区则较低。因此，对于真菌生物气溶胶的粗级分，没有观察到明显的模式。还观察到真菌浓度与气象参数之间的典型关系。人们注意到，浓度与温度和风速直接相关，而与湿度成反比。生物气溶胶的细颗粒和粗颗粒之间显示出很好的正相关关系。从Okhla垃圾填埋场的样本中鉴定出的8个真菌属中，还观察到真菌浓度与气象参数之间的典型关系。人们注意到，浓度与温度和风速直接相关，而与湿度成反比。生物气溶胶的细颗粒和粗颗粒之间显示出很好的正相关关系。从Okhla垃圾填埋场的样本中鉴定出的8个真菌属中，还观察到真菌浓度与气象参数之间的典型关系。人们注意到，浓度与温度和风速直接相关，而与湿度成反比。生物气溶胶的细颗粒和粗颗粒之间显示出很好的正相关关系。从Okhla垃圾填埋场的样本中鉴定出的8个真菌属中，在所有五个季节的所有七个地点中都大量发现了青霉，曲霉和根霉。链格孢和镰刀纷纷被发现在春季，夏季和冬季，而霉在秋季和冬季。曲霉菌在所有五个季节中都存在。