AAAR 37th Annual Conference October 14 - October 18, 2019 Oregon Convention Center Portland, Oregon, USA
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Biological Composition of Coastal Airborne Particulate Matters during Enteromorpha Prolifera Outbreak
JIAHUI RONG, Song Yu, Yan Wu, Shandong University
Abstract Number: 519 Working Group: Bioaerosols
Abstract The effects of Enteromorpha Prolifera Outbreak on coastal airborne particles were investigated in the paper. Air samples were collected using HighBioTrap sampler operated at its standard flow rate of 1000 L/min at different distances (0m, 500m, 1000m) from the seacoast before, during and after the Enteromorpha Prolifera Outbreak. Offshore seawater samples from the same period were also collected. Microbial communities, antibiotic and heavy metal resistance genes, allergens, endotoxins as well as marine algae toxins were analyzed for both air and seawater samples. Results showed that the fungal concentration and diversities in the coastal air were significantly higher during the Enteromorpha Prolifera Outbreak than other two phases. In contrast, which were opposite to bacterial ones. The bacterial DNA concentrations and diversities in the coastal airborne particulates showed an onward trend, while the fungi showed a downward trend. Compared with seawater without Enteromorpha Prolifera, there were more antibiotic and heavy metal resistance genes in atmospheric particles during the outbreak of Enteromorpha Prolifera. And Tansposase tnpA and vancomycin resistance genes (vanB and vanRA) were only detected for air samples collected during the Enteromorpha Prolifera Outbreak. The results from this study provide further new information in biological composition of coastal airborne particulate matters during Enteromorpha Prolifera Outbreak.