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Distribution, characterization and health risk assessment of size fractionated bioaerosols at an open landfill site in Dehradun, India
- Source :
- Atmospheric Pollution Research. 11:156-169
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Open landfilling is a common practice of waste dumping in developing countries, generating a range of environmental and public health hazards. In this study, we determined the distribution, composition and exposure risk of the size-segregated fungal and bacterial bioaerosols in an open landfill site in Dehradun, India. Bioaerosol and particulate matter (PM) measurements were carried out using a six-stage viable Andersen Cascade Impactor and a Wide Range Aerosol Spectrometer, respectively. Pearson correlation analysis was used to determine the relation of bioaerosol concentration with meteorological parameters and PM. The mean concentration of fungal and bacterial aerosols was observed to be 4582.75 ± 1358.25 CFU/m3 and 3609.53 ± 1000.28 CFU/m3, respectively. The bioaerosol composition showed the predominance of potential pathogens including Aspergillus (25.42%), Penicillium (20.34%), Cladosporium (15.25%), Alternaria (13.56%); and gram-negative Bacillus (21.15%), Streptobacillus (17.31%), Coccus (13.46%). Also, an inhalation risk assessment was conducted for the age-specific predictions of bioaerosol and PM deposition in human airways using a multiple path particle dosimetry model. For bioaerosols, maximum submicron depositions in the pulmonary region were observed in adults, while for PM, in children and infants. Finally, to identify the bioaerosol exposure caused respiratory disorders, a questionnaire-based health survey was conducted among the exposed population around the landfill site. The chi-square test showed significantly higher respiratory complaints in females for cold, cough, chest pain and chest tightness than in males. This work highlights the role of bioaerosols and PM in human health disorders in occupational environments associated with waste management.
- Subjects :
- Atmospheric Science
Veterinary medicine
010504 meteorology & atmospheric sciences
biology
Health risk assessment
Size fractionated
Indoor bioaerosol
010501 environmental sciences
Alternaria
biology.organism_classification
01 natural sciences
Pollution
Aerosol
Environmental science
Risk assessment
Waste Management and Disposal
0105 earth and related environmental sciences
Cladosporium
Bioaerosol
Subjects
Details
- ISSN :
- 13091042
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Atmospheric Pollution Research
- Accession number :
- edsair.doi...........166a3dd94cc1d4b6718d8fbbb51d9fec