Indoor fine particulate matter and demographic, household, and wood stove characteristics among rural US homes heated with wood fuel.
Indoor fine particulate matter and demographic, household, and wood stove characteristics among rural US homes heated with wood fuel.
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DOI：
10.1111/ina.12808
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发表时间：
2021-07
期刊：
影响因子：
5.8
通讯作者：
Ward TJ
中科院分区：
文献类型：
--
作者：
Walker ES;Noonan CW;Semmens EO;Ware D;Smith P;Boyer BB;Erdei E;Hopkins SE;Lewis J;Belcourt A;Ward TJ
在美国许多农村地区，使用柴炉进行家庭供暖是一种普遍做法，这可能导致室内细颗粒物（PM2.5）浓度升高。我们收集了冬季室内PM2.5的6天测量数据，并在三个农村和不同的研究地点评估了家庭和家庭使用炉子的特征。所有家庭的室内PM2.5浓度中位数为19 μg/m3，阿拉斯加（中位数=30，最小值=4，最大值=200,n=10）和纳瓦霍民族（中位数=29，最小值=3，最大值=105,n=23）的浓度高于蒙大拿州（中位数=16，最小值=2，最大值=139,n=59）。与在6个月内清理过烟囱的家庭相比，过去一年内未清理烟囱的家庭几何平均PM2.5高出65%（95%置信区间[CI]:−1,170）。基于一种新的木灶分级方法，使用劣质和中等质量炉灶的家庭PM2.5明显高于使用优质炉灶的家庭（分别高出186% [95% CI: 32, 519]和161% [95% CI:27, 434]）。我们的研究结果强调了减少农村燃木地区室内空气污染的区域适当干预的必要性和复杂性。高质量的炉灶和定期清理烟囱等行为习惯可能有助于改善这些家庭的室内空气质量。
Household heating using wood stoves is common practice in many rural areas of the United States (US) and can lead to elevated concentrations of indoor fine particulate matter (PM2.5). We collected 6-day measures of indoor PM2.5 during the winter and evaluated household and stove-use characteristics in homes at three rural and diverse study sites. The median indoor PM2.5 concentration across all homes was 19 μg/m3, with higher concentrations in Alaska (median=30, minimum=4, maximum=200, n=10) and Navajo Nation homes (median=29, minimum=3, maximum=105, n=23) compared to Montana homes (median=16, minimum=2, maximum=139, n=59). Households that had not cleaned the chimney within the past year had 65% higher geometric mean PM2.5 compared to those with chimney cleaned within 6 months (95% confidence interval [CI]: −1, 170). Based on a novel wood stove grading method, homes with low-quality and medium-quality stoves had substantially higher PM2.5 compared to homes with higher-quality stoves (186% higher [95% CI: 32, 519] and 161% higher; [95% CI:27, 434], respectively). Our findings highlight the need for, and complex nature of, regionally-appropriate interventions to reduce indoor air pollution in rural wood-burning regions. Higher quality stoves and behavioral practices such as regular chimney cleaning may help improve indoor air quality in such homes.
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影响因子：
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