Evaluation of three common green building materials for ozone removal, and primary and secondary emissions of aldehydes

被引:49
作者
Gall, Elliott [1 ]
Darling, Erin [1 ]
Siegel, Jeffrey A. [1 ,2 ]
Morrison, Glenn C. [3 ]
Corsi, Richard L. [1 ]
机构
[1] Univ Texas Austin, Austin, TX 78712 USA
[2] Univ Toronto, Toronto, ON, Canada
[3] Missouri Univ Sci & Technol, Rolla, MO USA
关键词
Ozone; Building materials; Surface chemistry; Deposition velocity; Emissions; VOLATILE ORGANIC-COMPOUNDS; INDOOR AIR; DEPOSITION VELOCITIES; OUTDOOR OZONE; PRODUCTS; POLLUTANTS; CHEMISTRY; SURFACES; IMPACT; RATES;
D O I
10.1016/j.atmosenv.2013.06.014
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Ozone reactions that occur on material surfaces can lead to elevated concentrations of oxidized products in the occupied space of buildings. However, there is little information on the impact of materials at full scale, especially for green building materials. Experiments were completed in a 68 m(3) climate-controlled test chamber with three certified green building materials that can cover large areas in buildings: (1) recycled carpet, (2) perlite-based ceiling tile and (3) low-VOC paint and primer on recycled drywall. Ozone deposition velocity and primary and secondary emission rates of C-1 to C-10 saturated carbonyls were determined for two chamber mixing conditions and three values of relative humidity. A direct comparison was made between ozone deposition velocities and carbonyl yields observed for the same materials analyzed in small (10 L) chambers. Total primary carbonyl emission rates from carpet, ceiling tile and painted drywall ranged from 27 to 120 mu g m(-2) h(-1),13 to 40 mu g m(-2) h(-1), 3.9 to 42 mu g m(-2) h(-1), respectively. Ozone deposition velocity to these three materials averaged 6.1 m h(-1), 2.3 m h(-1) and 0.32 m h(-1), respectively. Total secondary carbonyl emissions from these materials ranged from 70 to 276 mu g m(-2) h(-1), 0 to 12 mu g m(-2) h(-1), and 0 to 30 mu g m(-2) h(-1), respectively. Carbonyl emissions were determined with a transient approximation, and were found to be in general agreement with those found in the literature. These results suggest that care should be taken when selecting green building materials due to potentially large differences in primary and secondary emissions. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:910 / 918
页数:9
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