Paul Kimberly C, Molitor John, Yu Yu, Batteate Christina, Stafoggia Massimo, Mitra Sanjali, Meng Qi, Garcia-Gonzales Diane, Cockburn Myles, Eisenman David, Banerjee Sudipto, Liu Honghu, Jerrett Michael, Ritz Beate
Department of Neurology, David Geffen School of Medicine, UCLA, Los Angeles, CA, USA.
Oregon State University, Corvallis, OR, USA.
Sci Adv. 2025 Sep 12;11(37):eadr6684. doi: 10.1126/sciadv.adr6684.
On 23 October 2015, operators at the Aliso Canyon Natural Gas Storage field in Northern Los Angeles reported an uncontrolled natural gas leak. The blowout persisted for 112 days, releasing ~109,000 metric tons of methane into the atmosphere. Elevated air toxics and fine particle pollutant levels were also measured in nearby communities. We used California's birth records and a quasiexperimental design to assess whether pregnant women living in affected communities during the disaster experienced more adverse birth outcomes than expected. Overall, the prevalence of low birthweight and term low birthweight were 45 to 100% higher than expected among women living in the affected communities whose late pregnancy overlapped with the blowout. The strongest effects were observed among women living directly south and southwest of the facility. Furthermore, we observed a dose-response effect, where the odds of low birthweight were highest among women living closest to the well and attenuated out.
2015年10月23日，洛杉矶北部阿利索峡谷天然气储存场的操作人员报告了一起失控的天然气泄漏事件。井喷持续了112天，向大气中释放了约109,000公吨的甲烷。附近社区还检测到空气中有毒物质和细颗粒物污染物水平升高。我们利用加利福尼亚州的出生记录和准实验设计，评估在灾难期间居住在受影响社区的孕妇是否经历了比预期更多的不良出生结局。总体而言，在受影响社区中，妊娠晚期与井喷重叠的妇女中，低体重儿和足月低体重儿的患病率比预期高出45%至100%。在设施正南和西南方向居住的妇女中观察到了最强的影响。此外，我们观察到了剂量反应效应，即居住在离油井最近的妇女中低体重儿的几率最高，且向外逐渐减弱。
