Agricultural burning in Imperial Valley, California and respiratory symptoms in children: A cross-sectional, repeated measures analysis.
Agricultural burning in Imperial Valley, California and respiratory symptoms in children: A cross-sectional, repeated measures analysis.
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加利福尼亚州因皮里尔谷的农业焚烧和儿童呼吸道症状：横断面、重复测量分析。
DOI：
10.1016/j.scitotenv.2023.165854
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Farzan,ShohrehF
中科院分区：
文献类型：
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作者：
Kamai,ElizabethM;Ruiz,BrandynC;VanHorne,YoshiraOrnelas;Barahona,DayaneDuenas;Bejarano,Esther;Olmedo,Luis;Eckel,SandrahP;Johnston,JillE;Farzan,ShohrehF
焚烧农田是美国农村地区空气污染的一个未充分研究的来源。农业燃烧产生的烟雾含有对呼吸系统健康有不利影响的空气有毒物质。加州东南部的帝国县是一个高产的农业山谷，这里大量使用农业燃烧来清理收获后的作物残留物。我们将个体水平的农业烧伤暴露与父母报告的儿童呼吸道症状联系起来。我们利用帝国谷儿童呼吸健康与环境评估（AIRE）队列，研究了帝国谷县735名主要为西班牙裔的低收入小学生。父母在入组时收集的问卷和2017年至2019年的年度随访评估中报告了儿童的呼吸道健康症状和家庭人口统计学特征。2016年至2019年，因皮尔县允许的农业焚烧在空间上与儿童的地理编码居住地址相关联。在每次评估前的12个 月内，我们使用广义估计方程来评估随着3 公里范围内农业燃烧暴露的增加，呼吸道症状的患病率差异（pd）。近一半的儿童（346,49 %）在参加研究前一年居住在距离至少一个农业燃烧点3 公里范围内。在调整后的模型中，前一年每增加一天的农业燃烧与喘息的患病率增加一个百分点（PD 1.1 %;95 % CI 0.2 %,2.0 %）和更高的支气管炎症状（PD 1.0 %;95 % CI -0.2 %,2.1 %）相关。与无烧伤暴露相比，暴露于4天或更长时间的儿童的喘息和支气管炎症状的绝对患病率分别增加了5.9% %（95 % CI -0.3 %,12 %）和5.6% %（95 % CI -1.8 %,13 %）。哮喘患儿与喘息的相关性更强（PD 14 %;95 % CI -1.4 %,29 %）。据我们所知，这是美国首次对农业燃烧和儿童呼吸健康进行研究。这项研究表明，减少农业燃烧可以改善儿童的呼吸系统健康。
Burning of agricultural fields is an understudied source of air pollution in rural communities in the United States. Smoke from agricultural burning contains air toxics that adversely impact respiratory health. Imperial County in southeastern California is a highly productive agricultural valley that heavily employs agricultural burning to clear post-harvest crop remnants. We related individual-level exposure to agricultural burns to parent-reported respiratory symptoms in children.We leveraged the Children's Assessing Imperial Valley Respiratory Health and the Environment (AIRE) cohort of 735 predominantly Hispanic low-income elementary school students in Imperial County. Parents reported children's respiratory health symptoms and family demographic characteristics in questionnaires collected at enrollment and in annual follow-up assessments from 2017 to 2019. Permitted agricultural burns in Imperial County from 2016 to 2019 were spatially linked to children's geocoded residential addresses. We used generalized estimating equations to evaluate prevalence differences (PDs) in respiratory symptoms with increasing exposure to agricultural burning within 3 km in the 12 months prior to each assessment.Nearly half of children (346, 49 %) lived within 3 km of at least one agricultural burn in the year prior to study enrollment. In adjusted models, each additional day of agricultural burning in the prior year was associated with a one percentage point higher prevalence of wheezing (PD 1.1 %; 95 % CI 0.2 %, 2.0 %) and higher bronchitic symptoms (PD 1.0 %; 95 % CI -0.2 %, 2.1 %). Children exposed to four or more days of burning had an absolute increased prevalence of wheezing and bronchitic symptoms of 5.9 % (95 % CI -0.3 %, 12 %) and 5.6 % (95 % CI -1.8 %, 13 %), respectively, compared to no burn exposure. Associations with wheezing were stronger among children with asthma (PD 14 %; 95 % CI -1.4 %, 29 %).To our knowledge, this is the first U.S. study of agricultural burning and children's respiratory health. This work suggests that reducing agricultural burning could improve children's respiratory health.