Seasonal variation of airborne allergenic fungal spores in ambient PM 10 —a study in Guwahati, the largest city of north-east India

AbstractFungal spores in ambient particulate matter (PM) is one of the major constituents which can adversely affect human health. For the first time, an investigation was conducted for 1  year at a residential region in north-east India to study the seasonal variation of PM10-associated fungal spore concentration and their diversity. Using fine particulate sampler, samples were collected at 12  h intervals for 1 week of every month during July 2016–June 2017. Twelve-hour averaged PM10 concentration was 79.74  μg/m3 and 103.47  μg/m3 during day and night time, respectively. Fungal spore concentration was 126 (54 –294) CFU/m3 during day time and 107 (55 to 161) CFU/m3 during night time. Seven individual genera of fungal spores, namelyAspergillus,Penicillium,Cladosporium,Fusarium,...

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