Determinants of indoor carbonaceous aerosols in homes in the Northeast United States.
Determinants of indoor carbonaceous aerosols in homes in the Northeast United States.
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DOI：
10.1038/s41370-021-00405-6
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发表时间：
2023-05
影响因子：
4.5
通讯作者：
Garshick, Eric
中科院分区：
文献类型：
--
作者：
Deslauriers, Jessica R.;Redlich, Carrie A.;Kang, Choong-Min;Grady, Stephanie T.;Slade, Martin;Koutrakis, Petros;Garshick, Eric
人们对住宅暴露于含碳气溶胶的来源知之甚少，其中包括黑碳（BC），燃烧颗粒的元素碳核心，以及生物质燃烧产生的有机化合物（δ碳）。在已知燃烧源（如吸烟）最小化的情况下，评估住宅特征对室内BC和δ碳的影响。在2012年11月至2014年12月期间，在美国东北部招募了125名受试者（129个家庭），并完成了居住特征问卷。每3个月，参与者都会收到一个自动采样器，在为期一周的时间内（N=371个室内空气样本）测量家中的细颗粒物（PM2.5），并询问室内暴露情况。使用透射计在880 nm（反射BC）和370 nm处分析样品。两个波长之间的差异估计δ碳。室外BC和δ碳使用中心站点aethalometer测量。BC和Delta碳的几何平均室内浓度（分别为0.65μg/m³和0.19μg/m³）大于中心站点浓度（分别为0.53μg/m³和0.02μg/m³）。多变量分析表明，更大的室内浓度的BC与不经常使用蜡烛，多户住宅，冬季，缺乏空调，和中央站点BC。对于三角洲碳，更大的室内浓度与公寓，春季和中心站点浓度。
Little is known about sources of residential exposure to carbonaceous aerosols, which include black carbon (BC), the elemental carbon core of combustion particles, and organic compounds from biomass combustion (delta carbon). Assess the impact of residential characteristics on indoor BC and delta carbon when known sources of combustion (e.g. smoking) are minimized. Between November 2012-December 2014, 125 subjects (129 homes) in Northeast USA were recruited and completed a residential characteristics questionnaire. Every 3-months, participants received an automated sampler to measure fine particulate matter (PM2.5) in their home during a weeklong period (N=371 indoor air samples) and were also questioned about indoor exposures. The samples were analyzed using a transmissometer at 880nm (reflecting BC) and at 370nm. The difference between the two wavelengths estimates delta carbon. Outdoor BC and delta carbon were measured using a central site aethalometer. Geometric mean indoor concentrations of BC and delta carbon (0.65μg/m³ and 0.19μg/m³, respectively), were greater than central site concentrations (0.53μg/m³ and 0.02μg/m³, respectively). Multivariable analysis showed that greater indoor concentrations of BC were associated with infrequent candle use, multi-family homes, winter season, lack of air conditioning, and central site BC. For delta carbon, greater indoor concentrations were associated with apartments, spring season, and central site concentrations.
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影响因子：
2.9
作者：
Brown, Steven G.;Lee, Taehyoung;Collett, Jeffrey L., Jr.
通讯作者：
Collett, Jeffrey L., Jr.
影响因子：
10.4
作者：
Allen RW;Adar SD;Avol E;Cohen M;Curl CL;Larson T;Liu LJ;Sheppard L;Kaufman JD
通讯作者：
Kaufman JD
影响因子：
8.3
作者：
Garshick E;Grady ST;Hart JE;Coull BA;Schwartz JD;Laden F;Moy ML;Koutrakis P
通讯作者：
Koutrakis P
影响因子：
11.8
作者：
Grady ST;Koutrakis P;Hart JE;Coull BA;Schwartz J;Laden F;Zhang JJ;Gong J;Moy ML;Garshick E
通讯作者：
Garshick E
影响因子：
3.6
作者：
Deng, Gaofeng;Li, Zenghe;Wang, Zhiyong
通讯作者：
Wang, Zhiyong