An assessment of indoor air quality in recent Mexican immigrant housing in Commerce City, Colorado |
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| Authors: | Shelly L Miller Peter Scaramella Joseph Campe Cynthia W Goss Sandra Diaz-Castillo Ed Hendrikson Carolyn DiGuiseppi Jill Litt |
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| Institution: | 1. Agricultural and Environmental Chemistry, University of California, Davis School of Medicine, 4610 X Street, Sacramento, CA 95817, USA;2. Department of Public Health Sciences, University of California, Davis School of Medicine, 4610 X Street, Sacramento, CA 95817, USA;3. Department of Pediatrics, University of California, Davis School of Medicine, 4610 X Street, Sacramento, CA 95817, USA;4. Department of Entomology and Comprehensive Cancer Center, University of California, Davis 1 Shields Avenue, Davis, CA 95616, USA;1. International Laboratory for Air Quality and Health, Institute for Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia;2. Mathematical Sciences School, Queensland University of Technology, Brisbane, Australia;3. ARC Centre of Excellence for Mathematical and Statistical Frontiers, Brisbane, Australia;4. Centre for Air Quality and Health Research and Evaluation, Sydney, Australia;5. Environmental Sciences Research Institute, Shahid Beheshti University, Tehran, Iran;6. Institute of Environmental Assessment and Water Research, Spanish National Research Council Barcelona, Spain;7. University of Cassino and Southern Lazio, Cassino, Italy;8. Mines Albi Engineering School, Albi, France;9. Department of Engineering, University of Naples “Parthenope”, Naples, Italy |
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| Abstract: | An indoor air quality assessment was conducted on 100 homes of recent Mexican immigrants in Commerce City, Colorado, an urban industrial community north of Denver. Head of households were administered a family health survey, filled out an activity diary, and participated in a home inspection. Carbon monoxide (CO) and carbon dioxide (CO2) were measured for 24 h inside the main living area and outside of the homes. Harvard Impactors were used to collect 24-h samples of PM2.5 at the same locations for gravimetric analysis. Dust samples were collected by vacuuming carpeting and flooring at four locations within the home and analyzed by ELISA for seven allergens. Mean indoor and outdoor PM2.5 levels were 27.2 and 8.5 μg m−3, respectively. Indoor PM2.5 and CO2 were elevated in homes for which the number of hours with door/window open was zero compared to homes in which the number of hours was high (>15 h). Indoor PM2.5 levels did not correlate with outdoor levels and tended to increase with number of inhabitants, and results indicate that the source of indoor particles were occupants and their activities, excluding smoking and cooking. Mean indoor CO2 and CO levels were 1170 and 2.4 ppm, respectively. Carbon monoxide was higher than the 24-h National Ambient Air Quality Standard in 3 of the homes. The predominant allergens were cat (Fel d 1) and mouse (Mus m 1) allergens, found in 20 and 34 homes, respectively. |
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| Keywords: | PM2 5 Allergens Indoor/outdoor ratio Carbon monoxide Carbon dioxide Mexican immigrants |
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