跟进：托莱多化学品泄漏57人就医、7人仍在治疗，疏散半径缩至四分之一英里，爆炸风险随压力下降降低
托莱多市发言人周四表示，北托莱多 MC Tank Transport 公司化学品储罐泄漏事件已造成57人因相关症状就医，其中7人仍在接受治疗，所幸无人危重。截至周四上午，居家避险令已解除，强制疏散范围从最初的1英里缩小至事发地四分之一英里半径。
卢卡斯县卫生部门周三晚通报的口径为至少60人就医，与市府周四更新的57人略有差异。
泄漏始于10月20日晚，泄漏物为甲基丙烯酸缩水甘油酯（glycidyl methacrylate），是一种用于增强塑料、油漆和涂料性能的工业化学品。俄亥俄州环保署发言人布莱恩特·萨默维尔称，泄漏源于转运过程中的一次"失误"，MC Tank 的员工最先拨打911 报警。市府通报称，储罐仍在少量释放物质，但泄漏速度已大幅减缓，罐内温度和压力持续下降，爆炸风险随之降低，环保署监测到周边空气质量改善。
ProMedica 医疗系统发言人表示，接诊的约50名患者中最常见的症状是呼吸急促和胸闷，多接受呼吸治疗；有哮喘、慢阻肺等基础呼吸道疾病的患者症状最重。一名警长副手在响应现场后也需要治疗。市府目标是在条件允许时让清理队伍进入现场，并将清理责任交还 MC Tank 公司，疏散令将持续到爆炸风险完全解除。
Follow-Up: Toledo Chemical Leak Sends 57 to Hospital, 7 Still Being Treated; Evacuation Radius Shrinks to a Quarter Mile as Explosion Risk Falls With Tank Pressure
A Toledo city spokesperson said Thursday that the chemical tank leak at MC Tank Transport in North Toledo has sent 57 people for medical treatment for related symptoms, with 7 still being treated, none in critical condition. As of Thursday morning, the shelter-in-place order had been lifted, and the mandatory evacuation zone had been reduced from an initial one mile to a quarter-mile radius around the site.
Lucas County health officials had reported a figure of at least 60 people treated on Wednesday evening; the city's Thursday update of 57 differs slightly.
The leak began on the evening of October 20. The substance is glycidyl methacrylate, an industrial chemical used to enhance the performance of plastics, paints and coatings. Ohio EPA spokesperson Bryant Somerville said the leak resulted from a 'mistake' during a transfer operation, and that MC Tank employees were the first to call 911. The city said the tank is still releasing small amounts of material, but the release rate has slowed considerably, the tank's temperature and pressure continue to fall, the explosion risk has declined accordingly, and EPA monitoring shows air quality in the surrounding area improving.
A ProMedica health system spokesperson said the most common symptoms among the roughly 50 patients it treated were shortness of breath and chest tightness, most receiving respiratory therapy; patients with underlying respiratory conditions such as asthma and COPD had the most severe symptoms. A sheriff's deputy also required treatment after responding to the scene. The city's goal is to bring cleanup crews in when conditions allow and hand cleanup responsibility back to MC Tank; the evacuation order will remain until the explosion risk is fully eliminated.
来源：GSM·美国（原文链接）
图片来源：托莱多市区天际线 / Toledo, Ohio skyline across the Maumee River — MrJacon000, CC BY-SA 4.0, via Wikimedia Commons
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