Outdoor/indoor/personal ozone exposures of children in Nashville, Tennessee
Lee, K; Parkhurst, WJ; Xue, J; Ozkaynak, H; Neuberg, D; Spengler, JD
HERO ID
55599
Reference Type
Journal Article
Year
2004
Language
English
PMID
| HERO ID | 55599 |
|---|---|
| In Press | No |
| Year | 2004 |
| Title | Outdoor/indoor/personal ozone exposures of children in Nashville, Tennessee |
| Authors | Lee, K; Parkhurst, WJ; Xue, J; Ozkaynak, H; Neuberg, D; Spengler, JD |
| Journal | Journal of the Air and Waste Management Association |
| Volume | 54 |
| Issue | 3 |
| Page Numbers | 352-359 |
| Abstract | An ozone (O3) exposure study was conducted in Nashville, TN, using passive O3 samplers to measure six weekly outdoor, indoor, and personal O3 exposure estimates for a group of 10- to 12-yr-old elementary school children. Thirty-six children from two Nashville area communities (Inglewood and Hendersonville) participated in the O3 sampling program, and 99 children provided additional timeactivity information by telephone interview. By design, this study coincided with the 1994 Nashville/Middle Tennessee Ozone Study conducted by the Southern Oxidants Study, which provided enhanced continuous ambient O3 monitoring across the Nashville area. Passive sampling estimated weekly average outdoor O3 concentrations from 0.011 to 0.030 ppm in the urban Inglewood community and from 0.015 to 0.042 ppm in suburban Hendersonville. The maximum 1- and 8-hr ambient concentrations encountered at the Hendersonville continuous monitor exceeded the levels of the 1- and 8-hr metrics for the O3 National Ambient Air Quality Standard. Weekly average personal O3 exposures ranged from 0.0013 to 0.0064 ppm (7-31% of outdoor levels). Personal O3 exposures reflected the proportional amount of time spent in indoor and outdoor environments. Air-conditioned homes displayed very low indoor O3 concentrations, and homes using open windows and fans for ventilation displayed much higher concentrations. Implications: This study demonstrates the usefulness of passive O3 sampling technology in measuring long-term outdoor/indoor/personal exposures. The test subjects did well in following simple directions concerning accurate exposure assessment and in keeping time-activity diaries. Personal O3 exposure, in between the extremes of higher outdoor and lower indoor exposures, is a function of time spent outdoors. Clearly, those children spending more time outdoors are subject to higher O3 exposures than are their more housebound peers. Continuous State and Local Air Monitoring System O3 monitoring results substantially overestimate weeklong indoor and personal O3 exposure. Centrally air-conditioned indoor environments confer a substantial degree of protection from ambient O3 levels. |
| Doi | 10.1080/10473289.2004.10470904 |
| Pmid | 15061616 |
| Wosid | WOS:000220030300009 |
| Url | http://www.tandfonline.com/doi/abs/10.1080/10473289.2004.10470904 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | ECRIB. Umlaut above O in Ozkaynak.J. Air Waste Manage. Assoc. 54: 352-359. |
| Is Public | Yes |
| Language Text | English |
| Is Qa | No |