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目的探讨石家庄市大气臭氧(O_3)浓度与居民因非意外总急救、循环系统疾病和呼吸系统疾病而寻求急救服务人次的关系。方法收集石家庄市2013—2015年O_3日最大8 h平均浓度(O_3-8 h)、日均气温、相对湿度和每日非意外总急救人次、因循环系统疾病急救人次、因呼吸系统疾病急救人次,采用时间序列分析方法的广义相加模型,分析空气中O_3浓度和居民因非意外总急救、循环系统疾病、呼吸系统疾病寻求急救服务人次的关系。结果研究期间空气中O_3-8 h浓度范围为1.86~262.43μg/m~3;非意外总急救、因循环系统疾病急救和呼吸系统疾病急救日均人次分别为120、39、13人次。O_3-8 h浓度与平均气温呈正相关(r_s=0.80,P<0.01),与SO_2、NO_2、PM_(2.5)、PM_(10)及相对湿度均呈负相关(r_s值分别为-0.41,-0.41,-0.32,-0.24,-0.11,P<0.01)。大气中O_3-8 h浓度每升高10μg/m~3,居民因呼吸系统疾病急救人次增加1.21%(95%CI:0.59%~1.83%)。结论大气O_3污染(尤其是夏秋季)可能增加居民呼吸系统疾病的风险。
Objective To investigate the relationship between the concentration of atmospheric ozone (O 3) in Shijiazhuang city and the number of first-aid services sought by residents for non-accidental first aid, circulatory and respiratory diseases. Methods The average 8-hour average daily ozone concentration (O_3-8h), daily average temperature, relative humidity and total number of daily non-accidental first aid were collected from 2013 to 2015 in Shijiazhuang City. The average number of emergency rescue trips due to circulatory system diseases was , The generalized additive model of time series analysis was used to analyze the relationship between O_3 concentration in air and residents seeking first aid for non-accidental first aid, circulatory system diseases and respiratory diseases. Results The concentrations of O_3-8 h in air during the study ranged from 1.86 to 262.43 μg / m ~ 3. The average daily non-accidental first aid, circulatory system first aid and respiratory emergency were 120,39 and 13 respectively. The concentration of O_3-8 h was positively correlated with the mean air temperature (r_s = 0.80, P <0.01), and negatively correlated with SO_2, NO_2, PM 2.5, PM 10 and relative humidity (r_s = -0.41, 0.41, -0.32, -0.24, -0.11, P <0.01). For every 10μg / m3 increase of O_3-8h concentration in the atmosphere, inhabitants increased by 1.21% (95% CI: 0.59% -1.83%) due to emergency rescue of respiratory system diseases. Conclusion O3 pollution in the atmosphere, especially summer and autumn, may increase the risk of respiratory diseases in residents.